diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-12-06 09:27:26 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-12-06 09:34:55 -0800 |
| commit | 33e7c3a75196fbf8bd8412eda797cfa170eb189d (patch) | |
| tree | 7132d877c6b8f7813fdc1c5057742698fdf75818 /html/subx/apps/hex.subx.html | |
| parent | 33cf1f90be1e9d92513775edccf96cf2f5a971b7 (diff) | |
| download | mu-33e7c3a75196fbf8bd8412eda797cfa170eb189d.tar.gz | |
4846
Clean up a few things: a) Call scan-next-byte in hex.subx with the right number of args. Turns out tests continue to work fine if they never use the other args. b) Tear down a test for 'stop' in the right order. Not important since we have no EBP to restore. But can still be misleading. c) Have 'check-ints-equal' return nothing. Handy for it to not mess up EAX. I never use the result anyway, and the name also is imperative suggesting callers won't expect a return value.
Diffstat (limited to 'html/subx/apps/hex.subx.html')
| -rw-r--r-- | html/subx/apps/hex.subx.html | 1902 |
1 files changed, 1082 insertions, 820 deletions
diff --git a/html/subx/apps/hex.subx.html b/html/subx/apps/hex.subx.html index f0accae1..d81e587f 100644 --- a/html/subx/apps/hex.subx.html +++ b/html/subx/apps/hex.subx.html @@ -25,6 +25,7 @@ body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: .CommentedCode { color: #6c6c6c; } .Constant { color:#00a0a0; } .subxFunction { color: #ff8700; } +.subxMinorFunction { color: #875f5f; } .subxTest { color: #00af00; } .SpecialChar { color: #ff0000; } .subxH1Comment { color:#00ffff; } @@ -63,826 +64,1087 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/subx/apps/hex.subx'>https://github.com/akkartik/mu/blob/master/subx/apps/hex.subx</a> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Read a text file containing whitespace-separated ascii hex bytes from stdin,</span> -<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># and convert them into a binary file.</span> -<span id="L3" class="LineNr"> 3 </span><span class="subxComment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># To run (from the subx/ directory):</span> -<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># $ ./subx translate *.subx apps/hex.subx -o apps/hex</span> -<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># $ echo '80 81 82 # comment' |./subx run apps/hex |xxd -</span> -<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># Expected output:</span> -<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># 09000000: 8081 82</span> -<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#</span> -<span id="L10" class="LineNr"> 10 </span><span class="subxComment"># Only hex bytes and comments are permitted. Outside of comments all words</span> -<span id="L11" class="LineNr"> 11 </span><span class="subxComment"># must be exactly 2 characters long and contain only characters [0-9a-f]. No</span> -<span id="L12" class="LineNr"> 12 </span><span class="subxComment"># uppercase hex.</span> -<span id="L13" class="LineNr"> 13 </span> -<span id="L14" class="LineNr"> 14 </span>== code -<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># instruction effective address register displacement immediate</span> -<span id="L16" class="LineNr"> 16 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> -<span id="L17" class="LineNr"> 17 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L18" class="LineNr"> 18 </span> -<span id="L19" class="LineNr"> 19 </span> <span class="subxComment"># for debugging: run a single test</span> -<span id="L20" class="LineNr"> 20 </span><span class="CommentedCode">#? e8/call test-skip-until-newline/disp32</span> -<span id="L21" class="LineNr"> 21 </span><span class="CommentedCode">#? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX</span> -<span id="L22" class="LineNr"> 22 </span><span class="CommentedCode">#? eb/jump $main:end/disp8</span> -<span id="L23" class="LineNr"> 23 </span> -<span id="L24" class="LineNr"> 24 </span><span class="subxComment"># main: run tests if necessary, convert stdin if not</span> -<span id="L25" class="LineNr"> 25 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L26" class="LineNr"> 26 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L27" class="LineNr"> 27 </span> <span class="subxH1Comment"># - if argc > 1 and argv[1] == "test" then return run_tests()</span> -<span id="L28" class="LineNr"> 28 </span> <span class="subxS1Comment"># . argc > 1</span> -<span id="L29" class="LineNr"> 29 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/disp8 1/imm32 <span class="subxComment"># compare *EBP</span> -<span id="L30" class="LineNr"> 30 </span> 7e/jump-if-lesser-or-equal $run-main/disp8 -<span id="L31" class="LineNr"> 31 </span> <span class="subxS1Comment"># . argv[1] == "test"</span> -<span id="L32" class="LineNr"> 32 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L33" class="LineNr"> 33 </span> 68/push <span class="Constant">"test"</span>/imm32 -<span id="L34" class="LineNr"> 34 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> -<span id="L35" class="LineNr"> 35 </span> <span class="subxS2Comment"># . . call</span> -<span id="L36" class="LineNr"> 36 </span> e8/call kernel-string-equal/disp32 -<span id="L37" class="LineNr"> 37 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L38" class="LineNr"> 38 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L39" class="LineNr"> 39 </span> <span class="subxS1Comment"># . check result</span> -<span id="L40" class="LineNr"> 40 </span> 3d/compare-EAX 1/imm32 -<span id="L41" class="LineNr"> 41 </span> 75/jump-if-not-equal $run-main/disp8 -<span id="L42" class="LineNr"> 42 </span> <span class="subxS1Comment"># . run-tests()</span> -<span id="L43" class="LineNr"> 43 </span><span class="CommentedCode">#? e8/call test-hex-below-0/disp32</span> -<span id="L44" class="LineNr"> 44 </span><span class="CommentedCode">#? e8/call test-scan-next-byte/disp32</span> -<span id="L45" class="LineNr"> 45 </span><span class="CommentedCode">#? e8/call test-scan-next-byte-skips-comment/disp32</span> -<span id="L46" class="LineNr"> 46 </span> e8/call run-tests/disp32 -<span id="L47" class="LineNr"> 47 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 3/r32/EBX <span class="SpecialChar">Num-test-failures</span>/disp32 <span class="subxComment"># copy *Num-test-failures to EBX</span> -<span id="L48" class="LineNr"> 48 </span> eb/jump $main:end/disp8 -<span id="L49" class="LineNr"> 49 </span><span class="Constant">$run-main</span>: -<span id="L50" class="LineNr"> 50 </span> <span class="subxH1Comment"># - otherwise convert stdin</span> -<span id="L51" class="LineNr"> 51 </span> <span class="subxComment"># var ed/EAX : exit-descriptor</span> -<span id="L52" class="LineNr"> 52 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> -<span id="L53" class="LineNr"> 53 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 0/r32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EAX</span> -<span id="L54" class="LineNr"> 54 </span> <span class="subxComment"># configure ed to really exit()</span> -<span id="L55" class="LineNr"> 55 </span> <span class="subxS1Comment"># . ed->target = 0</span> -<span id="L56" class="LineNr"> 56 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/imm32 <span class="subxComment"># copy to *EAX</span> -<span id="L57" class="LineNr"> 57 </span> <span class="subxComment"># return convert(Stdin, 1/stdout, 2/stderr, ed)</span> -<span id="L58" class="LineNr"> 58 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L59" class="LineNr"> 59 </span> 50/push-EAX/ed -<span id="L60" class="LineNr"> 60 </span> 68/push 2/imm32/stderr -<span id="L61" class="LineNr"> 61 </span> 68/push 1/imm32/stdout -<span id="L62" class="LineNr"> 62 </span> 68/push <span class="SpecialChar">Stdin</span>/imm32 -<span id="L63" class="LineNr"> 63 </span> <span class="subxS2Comment"># . . call</span> -<span id="L64" class="LineNr"> 64 </span> e8/call convert/disp32 -<span id="L65" class="LineNr"> 65 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x10/imm32 <span class="subxComment"># add to ESP</span> -<span id="L67" class="LineNr"> 67 </span> <span class="subxS1Comment"># . syscall(exit, 0)</span> -<span id="L68" class="LineNr"> 68 </span> bb/copy-to-EBX 0/imm32 -<span id="L69" class="LineNr"> 69 </span><span class="Constant">$main:end</span>: -<span id="L70" class="LineNr"> 70 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L71" class="LineNr"> 71 </span> cd/syscall 0x80/imm8 -<span id="L72" class="LineNr"> 72 </span> -<span id="L73" class="LineNr"> 73 </span><span class="subxComment"># the main entry point</span> -<span id="L74" class="LineNr"> 74 </span><span class="subxFunction">convert</span>: <span class="subxComment"># in : (address buffered-file), out : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> <void></span> -<span id="L75" class="LineNr"> 75 </span> <span class="subxComment"># pseudocode:</span> -<span id="L76" class="LineNr"> 76 </span> <span class="subxComment"># repeatedly</span> -<span id="L77" class="LineNr"> 77 </span> <span class="subxComment"># EAX = convert-next-hex-byte(in, err, ed)</span> -<span id="L78" class="LineNr"> 78 </span> <span class="subxComment"># if EAX == 0xffffffff break # eof</span> -<span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># write-byte(out, EAX)</span> -<span id="L80" class="LineNr"> 80 </span> <span class="subxComment"># flush(out)</span> -<span id="L81" class="LineNr"> 81 </span> <span class="subxComment">#</span> -<span id="L82" class="LineNr"> 82 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L83" class="LineNr"> 83 </span> 55/push-EBP -<span id="L84" class="LineNr"> 84 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L85" class="LineNr"> 85 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L86" class="LineNr"> 86 </span> <span class="subxComment"># var buf/ECX : (address stream) on the stack</span> -<span id="L87" class="LineNr"> 87 </span> <span class="subxComment"># It occupies 1KB.</span> -<span id="L88" class="LineNr"> 88 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x400/imm32 <span class="subxComment"># subtract from ESP</span> -<span id="L89" class="LineNr"> 89 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> -<span id="L90" class="LineNr"> 90 </span> <span class="subxComment"># initialize the stream</span> -<span id="L91" class="LineNr"> 91 </span> <span class="subxS1Comment"># . length = 1KB - 12 bytes for 'read', 'write' and 'length' fields.</span> -<span id="L92" class="LineNr"> 92 </span> c7/copy 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/disp8 0x3f4/imm32 <span class="subxComment"># copy to *(ECX+8)</span> -<span id="L93" class="LineNr"> 93 </span> <span class="subxS1Comment"># . clear-stream(buf)</span> -<span id="L94" class="LineNr"> 94 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L95" class="LineNr"> 95 </span> 51/push-ECX -<span id="L96" class="LineNr"> 96 </span> <span class="subxS2Comment"># . . call</span> -<span id="L97" class="LineNr"> 97 </span> e8/call clear-stream/disp32 -<span id="L98" class="LineNr"> 98 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L99" class="LineNr"> 99 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L100" class="LineNr">100 </span><span class="Constant">$convert:loop</span>: -<span id="L101" class="LineNr">101 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L102" class="LineNr">102 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L103" class="LineNr">103 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L104" class="LineNr">104 </span> 5d/pop-to-EBP -<span id="L105" class="LineNr">105 </span> c3/return -<span id="L106" class="LineNr">106 </span> -<span id="L107" class="LineNr">107 </span><span class="subxComment"># read bytes from 'in' until a sequence of two lowercase hex characters (0-9, a-f)</span> -<span id="L108" class="LineNr">108 </span><span class="subxComment"># skip spaces and newlines</span> -<span id="L109" class="LineNr">109 </span><span class="subxComment"># on '#' skip bytes until newline</span> -<span id="L110" class="LineNr">110 </span><span class="subxComment"># raise an error and abort on all other unexpected bytes</span> -<span id="L111" class="LineNr">111 </span><span class="subxComment"># return the binary value of the two hex characters in EAX</span> -<span id="L112" class="LineNr">112 </span><span class="subxComment"># return 0xffffffff on end of file</span> -<span id="L113" class="LineNr">113 </span><span class="subxFunction">convert-next-hex-byte</span>: <span class="subxComment"># in : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> byte-or-eof/EAX</span> -<span id="L114" class="LineNr">114 </span> <span class="subxComment"># pseudocode:</span> -<span id="L115" class="LineNr">115 </span> <span class="subxComment"># EAX = scan-next-byte(in, err, ed)</span> -<span id="L116" class="LineNr">116 </span> <span class="subxComment"># if (EAX == 0xffffffff) return</span> -<span id="L117" class="LineNr">117 </span> <span class="subxComment"># ECX = EAX</span> -<span id="L118" class="LineNr">118 </span> <span class="subxComment"># EAX = scan-next-byte(in, err, ed)</span> -<span id="L119" class="LineNr">119 </span> <span class="subxComment"># if (EAX == 0xffffffff) error("partial byte found")</span> -<span id="L120" class="LineNr">120 </span> <span class="subxComment"># ECX = (ECX << 8) | EAX</span> -<span id="L121" class="LineNr">121 </span> <span class="subxComment"># return</span> -<span id="L122" class="LineNr">122 </span> <span class="subxComment">#</span> -<span id="L123" class="LineNr">123 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L124" class="LineNr">124 </span> 55/push-EBP -<span id="L125" class="LineNr">125 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L126" class="LineNr">126 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L127" class="LineNr">127 </span> <span class="subxComment"># var buf/ECX : (address stream) on the stack</span> -<span id="L128" class="LineNr">128 </span> <span class="subxComment"># It occupies 1KB.</span> -<span id="L129" class="LineNr">129 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x400/imm32 <span class="subxComment"># subtract from ESP</span> -<span id="L130" class="LineNr">130 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> -<span id="L131" class="LineNr">131 </span> <span class="subxComment"># initialize the stream</span> -<span id="L132" class="LineNr">132 </span> <span class="subxS1Comment"># . length = 1KB - 12 bytes for 'read', 'write' and 'length' fields.</span> -<span id="L133" class="LineNr">133 </span> c7/copy 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/disp8 0x3f4/imm32 <span class="subxComment"># copy to *(ECX+8)</span> -<span id="L134" class="LineNr">134 </span> <span class="subxS1Comment"># . clear-stream(buf)</span> -<span id="L135" class="LineNr">135 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L136" class="LineNr">136 </span> 51/push-ECX -<span id="L137" class="LineNr">137 </span> <span class="subxS2Comment"># . . call</span> -<span id="L138" class="LineNr">138 </span> e8/call clear-stream/disp32 -<span id="L139" class="LineNr">139 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L140" class="LineNr">140 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L141" class="LineNr">141 </span><span class="Constant">$convert:loop</span>: -<span id="L142" class="LineNr">142 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L143" class="LineNr">143 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L144" class="LineNr">144 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L145" class="LineNr">145 </span> 5d/pop-to-EBP -<span id="L146" class="LineNr">146 </span> c3/return -<span id="L147" class="LineNr">147 </span> -<span id="L148" class="LineNr">148 </span><span class="subxComment"># read whitespace until a hex byte, and return it</span> -<span id="L149" class="LineNr">149 </span><span class="subxComment"># return 0xffffffff if file ends without finding a hex byte</span> -<span id="L150" class="LineNr">150 </span><span class="subxComment"># on '#' skip all bytes until newline</span> -<span id="L151" class="LineNr">151 </span><span class="subxComment"># abort on any other byte</span> -<span id="L152" class="LineNr">152 </span><span class="subxFunction">scan-next-byte</span>: <span class="subxComment"># in : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> byte-or-eof/EAX</span> -<span id="L153" class="LineNr">153 </span> <span class="subxComment"># pseudocode:</span> -<span id="L154" class="LineNr">154 </span> <span class="subxComment"># repeatedly</span> -<span id="L155" class="LineNr">155 </span> <span class="subxComment"># EAX = read-byte(in)</span> -<span id="L156" class="LineNr">156 </span> <span class="subxComment"># if is-hex-lowercase-byte?(EAX) return EAX</span> -<span id="L157" class="LineNr">157 </span> <span class="subxComment"># if EAX == 0x20 continue</span> -<span id="L158" class="LineNr">158 </span> <span class="subxComment"># if EAX == '#' skip-until-newline(in)</span> -<span id="L159" class="LineNr">159 </span> <span class="subxComment"># else error-byte(ed, err, "unexpected byte: " EAX)</span> -<span id="L160" class="LineNr">160 </span> <span class="subxComment"># return 0xffffffff</span> -<span id="L161" class="LineNr">161 </span> <span class="subxComment">#</span> -<span id="L162" class="LineNr">162 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L163" class="LineNr">163 </span> 55/push-EBP -<span id="L164" class="LineNr">164 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L165" class="LineNr">165 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L166" class="LineNr">166 </span><span class="Constant">$scan-next-byte:loop</span>: -<span id="L167" class="LineNr">167 </span> <span class="subxComment"># EAX = read-byte(in)</span> -<span id="L168" class="LineNr">168 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L169" class="LineNr">169 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> -<span id="L170" class="LineNr">170 </span> <span class="subxS2Comment"># . . call</span> -<span id="L171" class="LineNr">171 </span> e8/call read-byte/disp32 -<span id="L172" class="LineNr">172 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L173" class="LineNr">173 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L174" class="LineNr">174 </span> <span class="subxComment"># if is-hex-lowercase-byte?(EAX) return EAX</span> -<span id="L175" class="LineNr">175 </span> <span class="subxS1Comment"># . save EAX for now</span> -<span id="L176" class="LineNr">176 </span> 50/push-EAX -<span id="L177" class="LineNr">177 </span> <span class="subxS1Comment"># . is-hex-lowercase-byte?(EAX)</span> -<span id="L178" class="LineNr">178 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L179" class="LineNr">179 </span> 50/push-EAX -<span id="L180" class="LineNr">180 </span> <span class="subxS2Comment"># . . call</span> -<span id="L181" class="LineNr">181 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L182" class="LineNr">182 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L183" class="LineNr">183 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L184" class="LineNr">184 </span> <span class="subxS1Comment"># . compare with 'false'</span> -<span id="L185" class="LineNr">185 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/imm32 <span class="subxComment"># compare EAX</span> -<span id="L186" class="LineNr">186 </span> <span class="subxS1Comment"># . restore EAX (does not affect flags)</span> -<span id="L187" class="LineNr">187 </span> 58/pop-to-EAX -<span id="L188" class="LineNr">188 </span> <span class="subxS1Comment"># . check whether to return</span> -<span id="L189" class="LineNr">189 </span> 75/jump-if-not-equal $scan-next-byte:end/disp8 -<span id="L190" class="LineNr">190 </span><span class="Constant">$scan-next-byte:check1</span>: -<span id="L191" class="LineNr">191 </span> <span class="subxComment"># if EAX == ' ' continue</span> -<span id="L192" class="LineNr">192 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x20/imm32 <span class="subxComment"># compare EAX</span> -<span id="L193" class="LineNr">193 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 -<span id="L194" class="LineNr">194 </span> <span class="subxComment"># if EAX == '\t' continue</span> -<span id="L195" class="LineNr">195 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x9/imm32 <span class="subxComment"># compare EAX</span> -<span id="L196" class="LineNr">196 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 -<span id="L197" class="LineNr">197 </span> <span class="subxComment"># if EAX == '\n' continue</span> -<span id="L198" class="LineNr">198 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xa/imm32 <span class="subxComment"># compare EAX</span> -<span id="L199" class="LineNr">199 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 -<span id="L200" class="LineNr">200 </span><span class="Constant">$scan-next-byte:check2</span>: -<span id="L201" class="LineNr">201 </span> <span class="subxComment"># if EAX == '#' skip-until-newline(in)</span> -<span id="L202" class="LineNr">202 </span> 3d/compare-with-EAX 0x23/imm32 -<span id="L203" class="LineNr">203 </span> 75/jump-if-not-equal $scan-next-byte:check3/disp8 -<span id="L204" class="LineNr">204 </span> <span class="subxS1Comment"># . skip-until-newline(in)</span> -<span id="L205" class="LineNr">205 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L206" class="LineNr">206 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> -<span id="L207" class="LineNr">207 </span> <span class="subxS2Comment"># . . call</span> -<span id="L208" class="LineNr">208 </span> e8/call skip-until-newline/disp32 -<span id="L209" class="LineNr">209 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L210" class="LineNr">210 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L211" class="LineNr">211 </span> eb/jump $scan-next-byte:loop/disp8 -<span id="L212" class="LineNr">212 </span><span class="Constant">$scan-next-byte:check3</span>: -<span id="L213" class="LineNr">213 </span><span class="subxComment"># TODO: error-byte takes a buffered-file, not a (fd or (address stream))</span> -<span id="L214" class="LineNr">214 </span> <span class="subxComment"># otherwise error-byte(ed, err, msg, EAX)</span> -<span id="L215" class="LineNr">215 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L216" class="LineNr">216 </span> 50/push-EAX -<span id="L217" class="LineNr">217 </span> 68/push <span class="Constant">"scan-next-byte: invalid byte"</span>/imm32 -<span id="L218" class="LineNr">218 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+12)</span> -<span id="L219" class="LineNr">219 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x10/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+16)</span> -<span id="L220" class="LineNr">220 </span> <span class="subxS2Comment"># . . call</span> -<span id="L221" class="LineNr">221 </span> e8/call error-byte/disp32 <span class="subxComment"># never returns</span> -<span id="L222" class="LineNr">222 </span><span class="Constant">$scan-next-byte:end</span>: -<span id="L223" class="LineNr">223 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L224" class="LineNr">224 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L225" class="LineNr">225 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L226" class="LineNr">226 </span> 5d/pop-to-EBP -<span id="L227" class="LineNr">227 </span> c3/return -<span id="L228" class="LineNr">228 </span> -<span id="L229" class="LineNr">229 </span><span class="subxTest">test-scan-next-byte</span>: -<span id="L230" class="LineNr">230 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L231" class="LineNr">231 </span> <span class="subxComment"># setup</span> -<span id="L232" class="LineNr">232 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L233" class="LineNr">233 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L234" class="LineNr">234 </span> 68/push _test-stream/imm32 -<span id="L235" class="LineNr">235 </span> <span class="subxS2Comment"># . . call</span> -<span id="L236" class="LineNr">236 </span> e8/call clear-stream/disp32 -<span id="L237" class="LineNr">237 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L238" class="LineNr">238 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L239" class="LineNr">239 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L240" class="LineNr">240 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L241" class="LineNr">241 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L242" class="LineNr">242 </span> 05/add-to-EAX 4/imm32 -<span id="L243" class="LineNr">243 </span> 50/push-EAX -<span id="L244" class="LineNr">244 </span> <span class="subxS2Comment"># . . call</span> -<span id="L245" class="LineNr">245 </span> e8/call clear-stream/disp32 -<span id="L246" class="LineNr">246 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L247" class="LineNr">247 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L248" class="LineNr">248 </span> <span class="subxComment"># initialize '_test-stream' to "abc"</span> -<span id="L249" class="LineNr">249 </span> <span class="subxS1Comment"># . write(_test-stream, "abc")</span> -<span id="L250" class="LineNr">250 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L251" class="LineNr">251 </span> 68/push <span class="Constant">"abc"</span>/imm32 -<span id="L252" class="LineNr">252 </span> 68/push _test-stream/imm32 -<span id="L253" class="LineNr">253 </span> <span class="subxS2Comment"># . . call</span> -<span id="L254" class="LineNr">254 </span> e8/call write/disp32 -<span id="L255" class="LineNr">255 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L256" class="LineNr">256 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L257" class="LineNr">257 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L258" class="LineNr">258 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L259" class="LineNr">259 </span> 68/push _test-buffered-file/imm32 -<span id="L260" class="LineNr">260 </span> <span class="subxS2Comment"># . . call</span> -<span id="L261" class="LineNr">261 </span> e8/call scan-next-byte/disp32 -<span id="L262" class="LineNr">262 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L263" class="LineNr">263 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L264" class="LineNr">264 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L265" class="LineNr">265 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L266" class="LineNr">266 </span> 68/push <span class="Constant">"F - test-scan-next-byte"</span>/imm32 -<span id="L267" class="LineNr">267 </span> 68/push 0x61/imm32/a -<span id="L268" class="LineNr">268 </span> 50/push-EAX -<span id="L269" class="LineNr">269 </span> <span class="subxS2Comment"># . . call</span> -<span id="L270" class="LineNr">270 </span> e8/call check-ints-equal/disp32 -<span id="L271" class="LineNr">271 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L272" class="LineNr">272 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L273" class="LineNr">273 </span> <span class="subxS1Comment"># . end</span> -<span id="L274" class="LineNr">274 </span> c3/return -<span id="L275" class="LineNr">275 </span> -<span id="L276" class="LineNr">276 </span><span class="subxTest">test-scan-next-byte-skips-whitespace</span>: -<span id="L277" class="LineNr">277 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L278" class="LineNr">278 </span> <span class="subxComment"># setup</span> -<span id="L279" class="LineNr">279 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L280" class="LineNr">280 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L281" class="LineNr">281 </span> 68/push _test-stream/imm32 -<span id="L282" class="LineNr">282 </span> <span class="subxS2Comment"># . . call</span> -<span id="L283" class="LineNr">283 </span> e8/call clear-stream/disp32 -<span id="L284" class="LineNr">284 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L285" class="LineNr">285 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L286" class="LineNr">286 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L287" class="LineNr">287 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L288" class="LineNr">288 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L289" class="LineNr">289 </span> 05/add-to-EAX 4/imm32 -<span id="L290" class="LineNr">290 </span> 50/push-EAX -<span id="L291" class="LineNr">291 </span> <span class="subxS2Comment"># . . call</span> -<span id="L292" class="LineNr">292 </span> e8/call clear-stream/disp32 -<span id="L293" class="LineNr">293 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L294" class="LineNr">294 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L295" class="LineNr">295 </span> <span class="subxComment"># initialize '_test-stream' to input with leading whitespace</span> -<span id="L296" class="LineNr">296 </span> <span class="subxS1Comment"># . write(_test-stream, text)</span> -<span id="L297" class="LineNr">297 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L298" class="LineNr">298 </span> 68/push <span class="Constant">" abc"</span>/imm32 -<span id="L299" class="LineNr">299 </span> 68/push _test-stream/imm32 -<span id="L300" class="LineNr">300 </span> <span class="subxS2Comment"># . . call</span> -<span id="L301" class="LineNr">301 </span> e8/call write/disp32 -<span id="L302" class="LineNr">302 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L303" class="LineNr">303 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L304" class="LineNr">304 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L305" class="LineNr">305 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L306" class="LineNr">306 </span> 68/push _test-buffered-file/imm32 -<span id="L307" class="LineNr">307 </span> <span class="subxS2Comment"># . . call</span> -<span id="L308" class="LineNr">308 </span> e8/call scan-next-byte/disp32 -<span id="L309" class="LineNr">309 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L310" class="LineNr">310 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L311" class="LineNr">311 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L312" class="LineNr">312 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L313" class="LineNr">313 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-whitespace"</span>/imm32 -<span id="L314" class="LineNr">314 </span> 68/push 0x61/imm32/a -<span id="L315" class="LineNr">315 </span> 50/push-EAX -<span id="L316" class="LineNr">316 </span> <span class="subxS2Comment"># . . call</span> -<span id="L317" class="LineNr">317 </span> e8/call check-ints-equal/disp32 -<span id="L318" class="LineNr">318 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L319" class="LineNr">319 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L320" class="LineNr">320 </span> <span class="subxS1Comment"># . end</span> -<span id="L321" class="LineNr">321 </span> c3/return -<span id="L322" class="LineNr">322 </span> -<span id="L323" class="LineNr">323 </span><span class="subxTest">test-scan-next-byte-skips-comment</span>: -<span id="L324" class="LineNr">324 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L325" class="LineNr">325 </span> <span class="subxComment"># setup</span> -<span id="L326" class="LineNr">326 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L327" class="LineNr">327 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L328" class="LineNr">328 </span> 68/push _test-stream/imm32 -<span id="L329" class="LineNr">329 </span> <span class="subxS2Comment"># . . call</span> -<span id="L330" class="LineNr">330 </span> e8/call clear-stream/disp32 -<span id="L331" class="LineNr">331 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L332" class="LineNr">332 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L333" class="LineNr">333 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L334" class="LineNr">334 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L335" class="LineNr">335 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L336" class="LineNr">336 </span> 05/add-to-EAX 4/imm32 -<span id="L337" class="LineNr">337 </span> 50/push-EAX -<span id="L338" class="LineNr">338 </span> <span class="subxS2Comment"># . . call</span> -<span id="L339" class="LineNr">339 </span> e8/call clear-stream/disp32 -<span id="L340" class="LineNr">340 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L341" class="LineNr">341 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L342" class="LineNr">342 </span> <span class="subxComment"># initialize '_test-stream' to input with leading comment</span> -<span id="L343" class="LineNr">343 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> -<span id="L344" class="LineNr">344 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L345" class="LineNr">345 </span> 68/push <span class="Constant">"#x"</span>/imm32 -<span id="L346" class="LineNr">346 </span> 68/push _test-stream/imm32 -<span id="L347" class="LineNr">347 </span> <span class="subxS2Comment"># . . call</span> -<span id="L348" class="LineNr">348 </span> e8/call write/disp32 -<span id="L349" class="LineNr">349 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L350" class="LineNr">350 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L351" class="LineNr">351 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> -<span id="L352" class="LineNr">352 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L353" class="LineNr">353 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 -<span id="L354" class="LineNr">354 </span> 68/push _test-stream/imm32 -<span id="L355" class="LineNr">355 </span> <span class="subxS2Comment"># . . call</span> -<span id="L356" class="LineNr">356 </span> e8/call write/disp32 -<span id="L357" class="LineNr">357 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L358" class="LineNr">358 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L359" class="LineNr">359 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> -<span id="L360" class="LineNr">360 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L361" class="LineNr">361 </span> 68/push <span class="Constant">"ab"</span>/imm32 -<span id="L362" class="LineNr">362 </span> 68/push _test-stream/imm32 -<span id="L363" class="LineNr">363 </span> <span class="subxS2Comment"># . . call</span> -<span id="L364" class="LineNr">364 </span> e8/call write/disp32 -<span id="L365" class="LineNr">365 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L366" class="LineNr">366 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L367" class="LineNr">367 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L368" class="LineNr">368 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L369" class="LineNr">369 </span> 68/push _test-buffered-file/imm32 -<span id="L370" class="LineNr">370 </span> <span class="subxS2Comment"># . . call</span> -<span id="L371" class="LineNr">371 </span> e8/call scan-next-byte/disp32 -<span id="L372" class="LineNr">372 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L373" class="LineNr">373 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L374" class="LineNr">374 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L375" class="LineNr">375 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L376" class="LineNr">376 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment"</span>/imm32 -<span id="L377" class="LineNr">377 </span> 68/push 0x61/imm32/a -<span id="L378" class="LineNr">378 </span> 50/push-EAX -<span id="L379" class="LineNr">379 </span> <span class="subxS2Comment"># . . call</span> -<span id="L380" class="LineNr">380 </span> e8/call check-ints-equal/disp32 -<span id="L381" class="LineNr">381 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L382" class="LineNr">382 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L383" class="LineNr">383 </span> <span class="subxS1Comment"># . end</span> -<span id="L384" class="LineNr">384 </span> c3/return -<span id="L385" class="LineNr">385 </span> -<span id="L386" class="LineNr">386 </span><span class="subxTest">test-scan-next-byte-skips-comment-and-whitespace</span>: -<span id="L387" class="LineNr">387 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L388" class="LineNr">388 </span> <span class="subxComment"># setup</span> -<span id="L389" class="LineNr">389 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L390" class="LineNr">390 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L391" class="LineNr">391 </span> 68/push _test-stream/imm32 -<span id="L392" class="LineNr">392 </span> <span class="subxS2Comment"># . . call</span> -<span id="L393" class="LineNr">393 </span> e8/call clear-stream/disp32 -<span id="L394" class="LineNr">394 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L395" class="LineNr">395 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L396" class="LineNr">396 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L397" class="LineNr">397 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L398" class="LineNr">398 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L399" class="LineNr">399 </span> 05/add-to-EAX 4/imm32 -<span id="L400" class="LineNr">400 </span> 50/push-EAX -<span id="L401" class="LineNr">401 </span> <span class="subxS2Comment"># . . call</span> -<span id="L402" class="LineNr">402 </span> e8/call clear-stream/disp32 -<span id="L403" class="LineNr">403 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L404" class="LineNr">404 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L405" class="LineNr">405 </span> <span class="subxComment"># initialize '_test-stream' to input with leading comment and more whitespace after newline</span> -<span id="L406" class="LineNr">406 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> -<span id="L407" class="LineNr">407 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L408" class="LineNr">408 </span> 68/push <span class="Constant">"#x"</span>/imm32 -<span id="L409" class="LineNr">409 </span> 68/push _test-stream/imm32 -<span id="L410" class="LineNr">410 </span> <span class="subxS2Comment"># . . call</span> -<span id="L411" class="LineNr">411 </span> e8/call write/disp32 -<span id="L412" class="LineNr">412 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L413" class="LineNr">413 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L414" class="LineNr">414 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> -<span id="L415" class="LineNr">415 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L416" class="LineNr">416 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 -<span id="L417" class="LineNr">417 </span> 68/push _test-stream/imm32 -<span id="L418" class="LineNr">418 </span> <span class="subxS2Comment"># . . call</span> -<span id="L419" class="LineNr">419 </span> e8/call write/disp32 -<span id="L420" class="LineNr">420 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L421" class="LineNr">421 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L422" class="LineNr">422 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> -<span id="L423" class="LineNr">423 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L424" class="LineNr">424 </span> 68/push <span class="Constant">" ab"</span>/imm32 -<span id="L425" class="LineNr">425 </span> 68/push _test-stream/imm32 -<span id="L426" class="LineNr">426 </span> <span class="subxS2Comment"># . . call</span> -<span id="L427" class="LineNr">427 </span> e8/call write/disp32 -<span id="L428" class="LineNr">428 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L429" class="LineNr">429 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L430" class="LineNr">430 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L431" class="LineNr">431 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L432" class="LineNr">432 </span> 68/push _test-buffered-file/imm32 -<span id="L433" class="LineNr">433 </span> <span class="subxS2Comment"># . . call</span> -<span id="L434" class="LineNr">434 </span> e8/call scan-next-byte/disp32 -<span id="L435" class="LineNr">435 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L436" class="LineNr">436 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L437" class="LineNr">437 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L438" class="LineNr">438 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L439" class="LineNr">439 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment"</span>/imm32 -<span id="L440" class="LineNr">440 </span> 68/push 0x61/imm32/a -<span id="L441" class="LineNr">441 </span> 50/push-EAX -<span id="L442" class="LineNr">442 </span> <span class="subxS2Comment"># . . call</span> -<span id="L443" class="LineNr">443 </span> e8/call check-ints-equal/disp32 -<span id="L444" class="LineNr">444 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L445" class="LineNr">445 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L446" class="LineNr">446 </span> <span class="subxS1Comment"># . end</span> -<span id="L447" class="LineNr">447 </span> c3/return -<span id="L448" class="LineNr">448 </span> -<span id="L449" class="LineNr">449 </span><span class="subxTest">test-scan-next-byte-skips-whitespace-and-comment</span>: -<span id="L450" class="LineNr">450 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L451" class="LineNr">451 </span> <span class="subxComment"># setup</span> -<span id="L452" class="LineNr">452 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L453" class="LineNr">453 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L454" class="LineNr">454 </span> 68/push _test-stream/imm32 -<span id="L455" class="LineNr">455 </span> <span class="subxS2Comment"># . . call</span> -<span id="L456" class="LineNr">456 </span> e8/call clear-stream/disp32 -<span id="L457" class="LineNr">457 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L458" class="LineNr">458 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L459" class="LineNr">459 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L460" class="LineNr">460 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L461" class="LineNr">461 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L462" class="LineNr">462 </span> 05/add-to-EAX 4/imm32 -<span id="L463" class="LineNr">463 </span> 50/push-EAX -<span id="L464" class="LineNr">464 </span> <span class="subxS2Comment"># . . call</span> -<span id="L465" class="LineNr">465 </span> e8/call clear-stream/disp32 -<span id="L466" class="LineNr">466 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L467" class="LineNr">467 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L468" class="LineNr">468 </span> <span class="subxComment"># initialize '_test-stream' to input with leading whitespace and comment</span> -<span id="L469" class="LineNr">469 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> -<span id="L470" class="LineNr">470 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L471" class="LineNr">471 </span> 68/push <span class="Constant">" #x"</span>/imm32 -<span id="L472" class="LineNr">472 </span> 68/push _test-stream/imm32 -<span id="L473" class="LineNr">473 </span> <span class="subxS2Comment"># . . call</span> -<span id="L474" class="LineNr">474 </span> e8/call write/disp32 -<span id="L475" class="LineNr">475 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L476" class="LineNr">476 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L477" class="LineNr">477 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> -<span id="L478" class="LineNr">478 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L479" class="LineNr">479 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 -<span id="L480" class="LineNr">480 </span> 68/push _test-stream/imm32 -<span id="L481" class="LineNr">481 </span> <span class="subxS2Comment"># . . call</span> -<span id="L482" class="LineNr">482 </span> e8/call write/disp32 -<span id="L483" class="LineNr">483 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L484" class="LineNr">484 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L485" class="LineNr">485 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> -<span id="L486" class="LineNr">486 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L487" class="LineNr">487 </span> 68/push <span class="Constant">"ab"</span>/imm32 -<span id="L488" class="LineNr">488 </span> 68/push _test-stream/imm32 -<span id="L489" class="LineNr">489 </span> <span class="subxS2Comment"># . . call</span> -<span id="L490" class="LineNr">490 </span> e8/call write/disp32 -<span id="L491" class="LineNr">491 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L492" class="LineNr">492 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L493" class="LineNr">493 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L494" class="LineNr">494 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L495" class="LineNr">495 </span> 68/push _test-buffered-file/imm32 -<span id="L496" class="LineNr">496 </span> <span class="subxS2Comment"># . . call</span> -<span id="L497" class="LineNr">497 </span> e8/call scan-next-byte/disp32 -<span id="L498" class="LineNr">498 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L499" class="LineNr">499 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L500" class="LineNr">500 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L501" class="LineNr">501 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L502" class="LineNr">502 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment"</span>/imm32 -<span id="L503" class="LineNr">503 </span> 68/push 0x61/imm32/a -<span id="L504" class="LineNr">504 </span> 50/push-EAX -<span id="L505" class="LineNr">505 </span> <span class="subxS2Comment"># . . call</span> -<span id="L506" class="LineNr">506 </span> e8/call check-ints-equal/disp32 -<span id="L507" class="LineNr">507 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L508" class="LineNr">508 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L509" class="LineNr">509 </span> <span class="subxS1Comment"># . end</span> -<span id="L510" class="LineNr">510 </span> c3/return -<span id="L511" class="LineNr">511 </span> -<span id="L512" class="LineNr">512 </span><span class="subxTest">test-scan-next-byte-reads-final-byte</span>: -<span id="L513" class="LineNr">513 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> -<span id="L514" class="LineNr">514 </span> <span class="subxComment"># setup</span> -<span id="L515" class="LineNr">515 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L516" class="LineNr">516 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L517" class="LineNr">517 </span> 68/push _test-stream/imm32 -<span id="L518" class="LineNr">518 </span> <span class="subxS2Comment"># . . call</span> -<span id="L519" class="LineNr">519 </span> e8/call clear-stream/disp32 -<span id="L520" class="LineNr">520 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L521" class="LineNr">521 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L522" class="LineNr">522 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L523" class="LineNr">523 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L524" class="LineNr">524 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L525" class="LineNr">525 </span> 05/add-to-EAX 4/imm32 -<span id="L526" class="LineNr">526 </span> 50/push-EAX -<span id="L527" class="LineNr">527 </span> <span class="subxS2Comment"># . . call</span> -<span id="L528" class="LineNr">528 </span> e8/call clear-stream/disp32 -<span id="L529" class="LineNr">529 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L530" class="LineNr">530 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L531" class="LineNr">531 </span> <span class="subxComment"># initialize '_test-stream' to input with single character</span> -<span id="L532" class="LineNr">532 </span> <span class="subxS1Comment"># . write(_test-stream, character)</span> -<span id="L533" class="LineNr">533 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L534" class="LineNr">534 </span> 68/push <span class="Constant">"a"</span>/imm32 -<span id="L535" class="LineNr">535 </span> 68/push _test-stream/imm32 -<span id="L536" class="LineNr">536 </span> <span class="subxS2Comment"># . . call</span> -<span id="L537" class="LineNr">537 </span> e8/call write/disp32 -<span id="L538" class="LineNr">538 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L539" class="LineNr">539 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L540" class="LineNr">540 </span> <span class="subxComment"># scan-next-byte(_test-buffered-file)</span> -<span id="L541" class="LineNr">541 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L542" class="LineNr">542 </span> 68/push _test-buffered-file/imm32 -<span id="L543" class="LineNr">543 </span> <span class="subxS2Comment"># . . call</span> -<span id="L544" class="LineNr">544 </span> e8/call scan-next-byte/disp32 -<span id="L545" class="LineNr">545 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L546" class="LineNr">546 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L547" class="LineNr">547 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> -<span id="L548" class="LineNr">548 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L549" class="LineNr">549 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment"</span>/imm32 -<span id="L550" class="LineNr">550 </span> 68/push 0x61/imm32/a -<span id="L551" class="LineNr">551 </span> 50/push-EAX -<span id="L552" class="LineNr">552 </span> <span class="subxS2Comment"># . . call</span> -<span id="L553" class="LineNr">553 </span> e8/call check-ints-equal/disp32 -<span id="L554" class="LineNr">554 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L555" class="LineNr">555 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L556" class="LineNr">556 </span> <span class="subxS1Comment"># . end</span> -<span id="L557" class="LineNr">557 </span> c3/return -<span id="L558" class="LineNr">558 </span> -<span id="L559" class="LineNr">559 </span><span class="subxFunction">is-hex-lowercase-byte?</span>: <span class="subxComment"># c : byte -> bool/EAX</span> -<span id="L560" class="LineNr">560 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L561" class="LineNr">561 </span> 55/push-EBP -<span id="L562" class="LineNr">562 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L563" class="LineNr">563 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L564" class="LineNr">564 </span> 51/push-ECX -<span id="L565" class="LineNr">565 </span> <span class="subxComment"># ECX = c</span> -<span id="L566" class="LineNr">566 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+8) to ECX</span> -<span id="L567" class="LineNr">567 </span> <span class="subxComment"># return false if c < '0'</span> -<span id="L568" class="LineNr">568 </span> b8/copy-to-EAX 0/imm32/false -<span id="L569" class="LineNr">569 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x30/imm32 <span class="subxComment"># compare ECX</span> -<span id="L570" class="LineNr">570 </span> 7c/jump-if-lesser $is-hex-lowercase-byte?:end/disp8 -<span id="L571" class="LineNr">571 </span> <span class="subxComment"># return false if c > 'f'</span> -<span id="L572" class="LineNr">572 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x66/imm32 <span class="subxComment"># compare ECX</span> -<span id="L573" class="LineNr">573 </span> 7f/jump-if-greater $is-hex-lowercase-byte?:end/disp8 -<span id="L574" class="LineNr">574 </span> <span class="subxComment"># return true if c <= '9'</span> -<span id="L575" class="LineNr">575 </span> b8/copy-to-EAX 1/imm32/true -<span id="L576" class="LineNr">576 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x39/imm32 <span class="subxComment"># compare ECX</span> -<span id="L577" class="LineNr">577 </span> 7e/jump-if-lesser-or-equal $is-hex-lowercase-byte?:end/disp8 -<span id="L578" class="LineNr">578 </span> <span class="subxComment"># return true if c >= 'a'</span> -<span id="L579" class="LineNr">579 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x61/imm32 <span class="subxComment"># compare ECX</span> -<span id="L580" class="LineNr">580 </span> 7d/jump-if-greater-or-equal $is-hex-lowercase-byte?:end/disp8 -<span id="L581" class="LineNr">581 </span> <span class="subxComment"># otherwise return false</span> -<span id="L582" class="LineNr">582 </span> b8/copy-to-EAX 0/imm32/false -<span id="L583" class="LineNr">583 </span><span class="Constant">$is-hex-lowercase-byte?:end</span>: -<span id="L584" class="LineNr">584 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L585" class="LineNr">585 </span> 59/pop-to-ECX -<span id="L586" class="LineNr">586 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L587" class="LineNr">587 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L588" class="LineNr">588 </span> 5d/pop-to-EBP -<span id="L589" class="LineNr">589 </span> c3/return -<span id="L590" class="LineNr">590 </span> -<span id="L591" class="LineNr">591 </span><span class="subxTest">test-hex-below-0</span>: -<span id="L592" class="LineNr">592 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x2f)</span> -<span id="L593" class="LineNr">593 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L594" class="LineNr">594 </span> 68/push 0x2f/imm32 -<span id="L595" class="LineNr">595 </span> <span class="subxS2Comment"># . . call</span> -<span id="L596" class="LineNr">596 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L597" class="LineNr">597 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L598" class="LineNr">598 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L599" class="LineNr">599 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> -<span id="L600" class="LineNr">600 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L601" class="LineNr">601 </span> 68/push <span class="Constant">"F - test-hex-below-0"</span>/imm32 -<span id="L602" class="LineNr">602 </span> 68/push 0/imm32/false -<span id="L603" class="LineNr">603 </span> 50/push-EAX -<span id="L604" class="LineNr">604 </span> <span class="subxS2Comment"># . . call</span> -<span id="L605" class="LineNr">605 </span> e8/call check-ints-equal/disp32 -<span id="L606" class="LineNr">606 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L607" class="LineNr">607 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L608" class="LineNr">608 </span> c3/return -<span id="L609" class="LineNr">609 </span> -<span id="L610" class="LineNr">610 </span><span class="subxTest">test-hex-0-to-9</span>: -<span id="L611" class="LineNr">611 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x30)</span> -<span id="L612" class="LineNr">612 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L613" class="LineNr">613 </span> 68/push 0x30/imm32 -<span id="L614" class="LineNr">614 </span> <span class="subxS2Comment"># . . call</span> -<span id="L615" class="LineNr">615 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L616" class="LineNr">616 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L617" class="LineNr">617 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L618" class="LineNr">618 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L619" class="LineNr">619 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L620" class="LineNr">620 </span> 68/push <span class="Constant">"F - test-hex-at-0"</span>/imm32 -<span id="L621" class="LineNr">621 </span> 68/push 1/imm32/true -<span id="L622" class="LineNr">622 </span> 50/push-EAX -<span id="L623" class="LineNr">623 </span> <span class="subxS2Comment"># . . call</span> -<span id="L624" class="LineNr">624 </span> e8/call check-ints-equal/disp32 -<span id="L625" class="LineNr">625 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L626" class="LineNr">626 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L627" class="LineNr">627 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x39)</span> -<span id="L628" class="LineNr">628 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L629" class="LineNr">629 </span> 68/push 0x39/imm32 -<span id="L630" class="LineNr">630 </span> <span class="subxS2Comment"># . . call</span> -<span id="L631" class="LineNr">631 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L632" class="LineNr">632 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L633" class="LineNr">633 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L634" class="LineNr">634 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L635" class="LineNr">635 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L636" class="LineNr">636 </span> 68/push <span class="Constant">"F - test-hex-at-9"</span>/imm32 -<span id="L637" class="LineNr">637 </span> 68/push 1/imm32/true -<span id="L638" class="LineNr">638 </span> 50/push-EAX -<span id="L639" class="LineNr">639 </span> <span class="subxS2Comment"># . . call</span> -<span id="L640" class="LineNr">640 </span> e8/call check-ints-equal/disp32 -<span id="L641" class="LineNr">641 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L642" class="LineNr">642 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L643" class="LineNr">643 </span> c3/return -<span id="L644" class="LineNr">644 </span> -<span id="L645" class="LineNr">645 </span><span class="subxTest">test-hex-above-9-to-a</span>: -<span id="L646" class="LineNr">646 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x3a)</span> -<span id="L647" class="LineNr">647 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L648" class="LineNr">648 </span> 68/push 0x3a/imm32 -<span id="L649" class="LineNr">649 </span> <span class="subxS2Comment"># . . call</span> -<span id="L650" class="LineNr">650 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L651" class="LineNr">651 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L652" class="LineNr">652 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L653" class="LineNr">653 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> -<span id="L654" class="LineNr">654 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L655" class="LineNr">655 </span> 68/push <span class="Constant">"F - test-hex-above-9-to-a"</span>/imm32 -<span id="L656" class="LineNr">656 </span> 68/push 0/imm32/false -<span id="L657" class="LineNr">657 </span> 50/push-EAX -<span id="L658" class="LineNr">658 </span> <span class="subxS2Comment"># . . call</span> -<span id="L659" class="LineNr">659 </span> e8/call check-ints-equal/disp32 -<span id="L660" class="LineNr">660 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L661" class="LineNr">661 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L662" class="LineNr">662 </span> c3/return -<span id="L663" class="LineNr">663 </span> -<span id="L664" class="LineNr">664 </span><span class="subxTest">test-hex-a-to-f</span>: -<span id="L665" class="LineNr">665 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x61)</span> -<span id="L666" class="LineNr">666 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L667" class="LineNr">667 </span> 68/push 0x61/imm32 -<span id="L668" class="LineNr">668 </span> <span class="subxS2Comment"># . . call</span> -<span id="L669" class="LineNr">669 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L670" class="LineNr">670 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L671" class="LineNr">671 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L672" class="LineNr">672 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L673" class="LineNr">673 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L674" class="LineNr">674 </span> 68/push <span class="Constant">"F - test-hex-at-a"</span>/imm32 -<span id="L675" class="LineNr">675 </span> 68/push 1/imm32/true -<span id="L676" class="LineNr">676 </span> 50/push-EAX -<span id="L677" class="LineNr">677 </span> <span class="subxS2Comment"># . . call</span> -<span id="L678" class="LineNr">678 </span> e8/call check-ints-equal/disp32 -<span id="L679" class="LineNr">679 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L680" class="LineNr">680 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L681" class="LineNr">681 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x66)</span> -<span id="L682" class="LineNr">682 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L683" class="LineNr">683 </span> 68/push 0x66/imm32 -<span id="L684" class="LineNr">684 </span> <span class="subxS2Comment"># . . call</span> -<span id="L685" class="LineNr">685 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L686" class="LineNr">686 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L687" class="LineNr">687 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L688" class="LineNr">688 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L689" class="LineNr">689 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L690" class="LineNr">690 </span> 68/push <span class="Constant">"F - test-hex-at-f"</span>/imm32 -<span id="L691" class="LineNr">691 </span> 68/push 1/imm32/true -<span id="L692" class="LineNr">692 </span> 50/push-EAX -<span id="L693" class="LineNr">693 </span> <span class="subxS2Comment"># . . call</span> -<span id="L694" class="LineNr">694 </span> e8/call check-ints-equal/disp32 -<span id="L695" class="LineNr">695 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L696" class="LineNr">696 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L697" class="LineNr">697 </span> c3/return -<span id="L698" class="LineNr">698 </span> -<span id="L699" class="LineNr">699 </span><span class="subxTest">test-hex-above-f</span>: -<span id="L700" class="LineNr">700 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x67)</span> -<span id="L701" class="LineNr">701 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L702" class="LineNr">702 </span> 68/push 0x67/imm32 -<span id="L703" class="LineNr">703 </span> <span class="subxS2Comment"># . . call</span> -<span id="L704" class="LineNr">704 </span> e8/call is-hex-lowercase-byte?/disp32 -<span id="L705" class="LineNr">705 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L706" class="LineNr">706 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L707" class="LineNr">707 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> -<span id="L708" class="LineNr">708 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L709" class="LineNr">709 </span> 68/push <span class="Constant">"F - test-hex-above-f"</span>/imm32 -<span id="L710" class="LineNr">710 </span> 68/push 0/imm32/false -<span id="L711" class="LineNr">711 </span> 50/push-EAX -<span id="L712" class="LineNr">712 </span> <span class="subxS2Comment"># . . call</span> -<span id="L713" class="LineNr">713 </span> e8/call check-ints-equal/disp32 -<span id="L714" class="LineNr">714 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L715" class="LineNr">715 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L716" class="LineNr">716 </span> c3/return -<span id="L717" class="LineNr">717 </span> -<span id="L718" class="LineNr">718 </span><span class="subxFunction">skip-until-newline</span>: <span class="subxComment"># in : (address buffered-file) -> <void></span> -<span id="L719" class="LineNr">719 </span> <span class="subxComment"># pseudocode:</span> -<span id="L720" class="LineNr">720 </span> <span class="subxComment"># push EAX</span> -<span id="L721" class="LineNr">721 </span> <span class="subxComment"># repeatedly:</span> -<span id="L722" class="LineNr">722 </span> <span class="subxComment"># EAX = read-byte(in)</span> -<span id="L723" class="LineNr">723 </span> <span class="subxComment"># if EAX == 0xffffffff break</span> -<span id="L724" class="LineNr">724 </span> <span class="subxComment"># if EAX == 0x0a break</span> -<span id="L725" class="LineNr">725 </span> <span class="subxComment"># pop EAX</span> -<span id="L726" class="LineNr">726 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L727" class="LineNr">727 </span> 55/push-EBP -<span id="L728" class="LineNr">728 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L729" class="LineNr">729 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L730" class="LineNr">730 </span> 50/push-EAX -<span id="L731" class="LineNr">731 </span><span class="Constant">$skip-until-newline:loop</span>: -<span id="L732" class="LineNr">732 </span> <span class="subxS1Comment"># . EAX = read-byte(in)</span> -<span id="L733" class="LineNr">733 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L734" class="LineNr">734 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> -<span id="L735" class="LineNr">735 </span> <span class="subxS2Comment"># . . call</span> -<span id="L736" class="LineNr">736 </span> e8/call read-byte/disp32 -<span id="L737" class="LineNr">737 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L738" class="LineNr">738 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L739" class="LineNr">739 </span> <span class="subxS1Comment"># . if EAX == 0xffffffff break</span> -<span id="L740" class="LineNr">740 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xffffffff/imm32 <span class="subxComment"># compare EAX</span> -<span id="L741" class="LineNr">741 </span> 74/jump-if-equal $skip-until-newline:end/disp8 -<span id="L742" class="LineNr">742 </span><span class="Constant">$aa</span>: -<span id="L743" class="LineNr">743 </span> <span class="subxS1Comment"># . if EAX != 0xa/newline loop</span> -<span id="L744" class="LineNr">744 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xa/imm32 <span class="subxComment"># compare EAX</span> -<span id="L745" class="LineNr">745 </span> 75/jump-if-not-equal $skip-until-newline:loop/disp8 -<span id="L746" class="LineNr">746 </span><span class="Constant">$skip-until-newline:end</span>: -<span id="L747" class="LineNr">747 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L748" class="LineNr">748 </span> 58/pop-to-EAX -<span id="L749" class="LineNr">749 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L750" class="LineNr">750 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L751" class="LineNr">751 </span> 5d/pop-to-EBP -<span id="L752" class="LineNr">752 </span> c3/return -<span id="L753" class="LineNr">753 </span> -<span id="L754" class="LineNr">754 </span><span class="subxTest">test-skip-until-newline</span>: -<span id="L755" class="LineNr">755 </span> <span class="subxH1Comment"># - check that the read pointer points after the newline</span> -<span id="L756" class="LineNr">756 </span> <span class="subxComment"># setup</span> -<span id="L757" class="LineNr">757 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L758" class="LineNr">758 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L759" class="LineNr">759 </span> 68/push _test-stream/imm32 -<span id="L760" class="LineNr">760 </span> <span class="subxS2Comment"># . . call</span> -<span id="L761" class="LineNr">761 </span> e8/call clear-stream/disp32 -<span id="L762" class="LineNr">762 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L763" class="LineNr">763 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L764" class="LineNr">764 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L765" class="LineNr">765 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L766" class="LineNr">766 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L767" class="LineNr">767 </span> 05/add-to-EAX 4/imm32 -<span id="L768" class="LineNr">768 </span> 50/push-EAX -<span id="L769" class="LineNr">769 </span> <span class="subxS2Comment"># . . call</span> -<span id="L770" class="LineNr">770 </span> e8/call clear-stream/disp32 -<span id="L771" class="LineNr">771 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L772" class="LineNr">772 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L773" class="LineNr">773 </span> <span class="subxComment"># initialize '_test-stream' to "abc\nde"</span> -<span id="L774" class="LineNr">774 </span> <span class="subxS1Comment"># . write(_test-stream, "abc")</span> -<span id="L775" class="LineNr">775 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L776" class="LineNr">776 </span> 68/push <span class="Constant">"abc"</span>/imm32 -<span id="L777" class="LineNr">777 </span> 68/push _test-stream/imm32 -<span id="L778" class="LineNr">778 </span> <span class="subxS2Comment"># . . call</span> -<span id="L779" class="LineNr">779 </span> e8/call write/disp32 -<span id="L780" class="LineNr">780 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L781" class="LineNr">781 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L782" class="LineNr">782 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> -<span id="L783" class="LineNr">783 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L784" class="LineNr">784 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 -<span id="L785" class="LineNr">785 </span> 68/push _test-stream/imm32 -<span id="L786" class="LineNr">786 </span> <span class="subxS2Comment"># . . call</span> -<span id="L787" class="LineNr">787 </span> e8/call write/disp32 -<span id="L788" class="LineNr">788 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L789" class="LineNr">789 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L790" class="LineNr">790 </span> <span class="subxS1Comment"># . write(_test-stream, "de")</span> -<span id="L791" class="LineNr">791 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L792" class="LineNr">792 </span> 68/push <span class="Constant">"de"</span>/imm32 -<span id="L793" class="LineNr">793 </span> 68/push _test-stream/imm32 -<span id="L794" class="LineNr">794 </span> <span class="subxS2Comment"># . . call</span> -<span id="L795" class="LineNr">795 </span> e8/call write/disp32 -<span id="L796" class="LineNr">796 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L797" class="LineNr">797 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L798" class="LineNr">798 </span> <span class="subxComment"># skip-until-newline(_test-buffered-file)</span> -<span id="L799" class="LineNr">799 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L800" class="LineNr">800 </span> 68/push _test-buffered-file/imm32 -<span id="L801" class="LineNr">801 </span> <span class="subxS2Comment"># . . call</span> -<span id="L802" class="LineNr">802 </span> e8/call skip-until-newline/disp32 -<span id="L803" class="LineNr">803 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L804" class="LineNr">804 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> -<span id="L805" class="LineNr">805 </span> <span class="subxComment"># check-ints-equal(_test-buffered-file->read, 4, msg)</span> -<span id="L806" class="LineNr">806 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L807" class="LineNr">807 </span> 68/push <span class="Constant">"F - test-skip-until-newline"</span>/imm32 -<span id="L808" class="LineNr">808 </span> 68/push 4/imm32 -<span id="L809" class="LineNr">809 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L810" class="LineNr">810 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EAX+8)</span> -<span id="L811" class="LineNr">811 </span> <span class="subxS2Comment"># . . call</span> -<span id="L812" class="LineNr">812 </span> e8/call check-ints-equal/disp32 -<span id="L813" class="LineNr">813 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L814" class="LineNr">814 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L815" class="LineNr">815 </span> <span class="subxS1Comment"># . end</span> -<span id="L816" class="LineNr">816 </span> c3/return -<span id="L817" class="LineNr">817 </span> -<span id="L818" class="LineNr">818 </span>== data -<span id="L819" class="LineNr">819 </span> -<span id="L820" class="LineNr">820 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Read a text file containing whitespace-separated ascii hex bytes from stdin,</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># and convert them into a binary file.</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment">#</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># To run (from the subx/ directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># $ ./subx translate *.subx apps/hex.subx -o apps/hex</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># $ echo '80 81 82 # comment' |./subx run apps/hex |xxd -</span> +<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># Expected output:</span> +<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># 00000000: 8081 82</span> +<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#</span> +<span id="L10" class="LineNr"> 10 </span><span class="subxComment"># Only hex bytes and comments are permitted. Outside of comments all words</span> +<span id="L11" class="LineNr"> 11 </span><span class="subxComment"># must be exactly 2 characters long and contain only characters [0-9a-f]. No</span> +<span id="L12" class="LineNr"> 12 </span><span class="subxComment"># uppercase hex.</span> +<span id="L13" class="LineNr"> 13 </span> +<span id="L14" class="LineNr"> 14 </span>== code +<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L16" class="LineNr"> 16 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L17" class="LineNr"> 17 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span> <span class="subxComment"># for debugging: run a single test</span> +<span id="L20" class="LineNr"> 20 </span><span class="CommentedCode">#? e8/call test-skip-until-newline/disp32</span> +<span id="L21" class="LineNr"> 21 </span><span class="CommentedCode">#? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX</span> +<span id="L22" class="LineNr"> 22 </span><span class="CommentedCode">#? eb/jump $main:end/disp8</span> +<span id="L23" class="LineNr"> 23 </span> +<span id="L24" class="LineNr"> 24 </span><span class="subxComment"># main: run tests if necessary, convert stdin if not</span> +<span id="L25" class="LineNr"> 25 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L26" class="LineNr"> 26 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L27" class="LineNr"> 27 </span> <span class="subxH1Comment"># - if argc > 1 and argv[1] == "test" then return run_tests()</span> +<span id="L28" class="LineNr"> 28 </span> <span class="subxS1Comment"># . argc > 1</span> +<span id="L29" class="LineNr"> 29 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/disp8 1/imm32 <span class="subxComment"># compare *EBP</span> +<span id="L30" class="LineNr"> 30 </span> 7e/jump-if-lesser-or-equal $run-main/disp8 +<span id="L31" class="LineNr"> 31 </span> <span class="subxS1Comment"># . argv[1] == "test"</span> +<span id="L32" class="LineNr"> 32 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L33" class="LineNr"> 33 </span> 68/push <span class="Constant">"test"</span>/imm32 +<span id="L34" class="LineNr"> 34 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L35" class="LineNr"> 35 </span> <span class="subxS2Comment"># . . call</span> +<span id="L36" class="LineNr"> 36 </span> e8/call kernel-string-equal/disp32 +<span id="L37" class="LineNr"> 37 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L38" class="LineNr"> 38 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L39" class="LineNr"> 39 </span> <span class="subxS1Comment"># . check result</span> +<span id="L40" class="LineNr"> 40 </span> 3d/compare-EAX 1/imm32 +<span id="L41" class="LineNr"> 41 </span> 75/jump-if-not-equal $run-main/disp8 +<span id="L42" class="LineNr"> 42 </span> <span class="subxS1Comment"># . run-tests()</span> +<span id="L43" class="LineNr"> 43 </span><span class="CommentedCode">#? e8/call test-hex-below-0/disp32</span> +<span id="L44" class="LineNr"> 44 </span><span class="CommentedCode">#? e8/call test-scan-next-byte/disp32</span> +<span id="L45" class="LineNr"> 45 </span><span class="CommentedCode">#? e8/call test-scan-next-byte-skips-comment/disp32</span> +<span id="L46" class="LineNr"> 46 </span> e8/call run-tests/disp32 +<span id="L47" class="LineNr"> 47 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 3/r32/EBX <span class="SpecialChar">Num-test-failures</span>/disp32 <span class="subxComment"># copy *Num-test-failures to EBX</span> +<span id="L48" class="LineNr"> 48 </span> eb/jump $main:end/disp8 +<span id="L49" class="LineNr"> 49 </span><span class="Constant">$run-main</span>: +<span id="L50" class="LineNr"> 50 </span> <span class="subxH1Comment"># - otherwise convert stdin</span> +<span id="L51" class="LineNr"> 51 </span> <span class="subxComment"># var ed/EAX : exit-descriptor</span> +<span id="L52" class="LineNr"> 52 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L53" class="LineNr"> 53 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 0/r32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EAX</span> +<span id="L54" class="LineNr"> 54 </span> <span class="subxComment"># configure ed to really exit()</span> +<span id="L55" class="LineNr"> 55 </span> <span class="subxS1Comment"># . ed->target = 0</span> +<span id="L56" class="LineNr"> 56 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/imm32 <span class="subxComment"># copy to *EAX</span> +<span id="L57" class="LineNr"> 57 </span> <span class="subxComment"># return convert(Stdin, 1/stdout, 2/stderr, ed)</span> +<span id="L58" class="LineNr"> 58 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L59" class="LineNr"> 59 </span> 50/push-EAX/ed +<span id="L60" class="LineNr"> 60 </span> 68/push 2/imm32/stderr +<span id="L61" class="LineNr"> 61 </span> 68/push 1/imm32/stdout +<span id="L62" class="LineNr"> 62 </span> 68/push <span class="SpecialChar">Stdin</span>/imm32 +<span id="L63" class="LineNr"> 63 </span> <span class="subxS2Comment"># . . call</span> +<span id="L64" class="LineNr"> 64 </span> e8/call convert/disp32 +<span id="L65" class="LineNr"> 65 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x10/imm32 <span class="subxComment"># add to ESP</span> +<span id="L67" class="LineNr"> 67 </span> <span class="subxS1Comment"># . syscall(exit, 0)</span> +<span id="L68" class="LineNr"> 68 </span> bb/copy-to-EBX 0/imm32 +<span id="L69" class="LineNr"> 69 </span><span class="Constant">$main:end</span>: +<span id="L70" class="LineNr"> 70 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L71" class="LineNr"> 71 </span> cd/syscall 0x80/imm8 +<span id="L72" class="LineNr"> 72 </span> +<span id="L73" class="LineNr"> 73 </span><span class="subxComment"># the main entry point</span> +<span id="L74" class="LineNr"> 74 </span><span class="subxFunction">convert</span>: <span class="subxComment"># in : (address buffered-file), out : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> <void></span> +<span id="L75" class="LineNr"> 75 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L76" class="LineNr"> 76 </span> 55/push-EBP +<span id="L77" class="LineNr"> 77 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L78" class="LineNr"> 78 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L79" class="LineNr"> 79 </span><span class="Constant">$convert:end</span>: +<span id="L80" class="LineNr"> 80 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L81" class="LineNr"> 81 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L82" class="LineNr"> 82 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L83" class="LineNr"> 83 </span> 5d/pop-to-EBP +<span id="L84" class="LineNr"> 84 </span> c3/return +<span id="L85" class="LineNr"> 85 </span> +<span id="L86" class="LineNr"> 86 </span><span class="subxComment"># read bytes from 'in' until a sequence of two lowercase hex characters (0-9, a-f)</span> +<span id="L87" class="LineNr"> 87 </span><span class="subxComment"># skip spaces and newlines</span> +<span id="L88" class="LineNr"> 88 </span><span class="subxComment"># on '#' skip bytes until newline</span> +<span id="L89" class="LineNr"> 89 </span><span class="subxComment"># raise an error and abort on all other unexpected bytes</span> +<span id="L90" class="LineNr"> 90 </span><span class="subxComment"># return the binary value of the two hex characters in EAX</span> +<span id="L91" class="LineNr"> 91 </span><span class="subxComment"># return 0xffffffff on end of file</span> +<span id="L92" class="LineNr"> 92 </span><span class="subxFunction">convert-next-hex-byte</span>: <span class="subxComment"># in : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> byte-or-eof/EAX</span> +<span id="L93" class="LineNr"> 93 </span> <span class="subxComment"># pseudocode:</span> +<span id="L94" class="LineNr"> 94 </span> <span class="subxComment"># EAX = scan-next-byte(in, err, ed)</span> +<span id="L95" class="LineNr"> 95 </span> <span class="subxComment"># if (EAX == 0xffffffff) return</span> +<span id="L96" class="LineNr"> 96 </span> <span class="subxComment"># ECX = EAX</span> +<span id="L97" class="LineNr"> 97 </span> <span class="subxComment"># EAX = scan-next-byte(in, err, ed)</span> +<span id="L98" class="LineNr"> 98 </span> <span class="subxComment"># if (EAX == 0xffffffff) error("partial byte found")</span> +<span id="L99" class="LineNr"> 99 </span> <span class="subxComment"># ECX = (ECX << 8) | EAX</span> +<span id="L100" class="LineNr"> 100 </span> <span class="subxComment"># return</span> +<span id="L101" class="LineNr"> 101 </span> <span class="subxComment">#</span> +<span id="L102" class="LineNr"> 102 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L103" class="LineNr"> 103 </span> 55/push-EBP +<span id="L104" class="LineNr"> 104 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L105" class="LineNr"> 105 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L106" class="LineNr"> 106 </span><span class="Constant">$convert-next-hex-byte:end</span>: +<span id="L107" class="LineNr"> 107 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L108" class="LineNr"> 108 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L109" class="LineNr"> 109 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L110" class="LineNr"> 110 </span> 5d/pop-to-EBP +<span id="L111" class="LineNr"> 111 </span> c3/return +<span id="L112" class="LineNr"> 112 </span> +<span id="L113" class="LineNr"> 113 </span><span class="subxComment"># read whitespace until a hex byte, and return it</span> +<span id="L114" class="LineNr"> 114 </span><span class="subxComment"># return 0xffffffff if file ends without finding a hex byte</span> +<span id="L115" class="LineNr"> 115 </span><span class="subxComment"># on '#' skip all bytes until newline</span> +<span id="L116" class="LineNr"> 116 </span><span class="subxComment"># abort on any other byte</span> +<span id="L117" class="LineNr"> 117 </span><span class="subxFunction">scan-next-byte</span>: <span class="subxComment"># in : (address buffered-file), err : (address buffered-file), ed : (address exit-descriptor) -> byte-or-eof/EAX</span> +<span id="L118" class="LineNr"> 118 </span> <span class="subxComment"># pseudocode:</span> +<span id="L119" class="LineNr"> 119 </span> <span class="subxComment"># repeatedly</span> +<span id="L120" class="LineNr"> 120 </span> <span class="subxComment"># EAX = read-byte(in)</span> +<span id="L121" class="LineNr"> 121 </span> <span class="subxComment"># if is-hex-lowercase-byte?(EAX) return EAX</span> +<span id="L122" class="LineNr"> 122 </span> <span class="subxComment"># if EAX == 0x20 continue</span> +<span id="L123" class="LineNr"> 123 </span> <span class="subxComment"># if EAX == '#' skip-until-newline(in)</span> +<span id="L124" class="LineNr"> 124 </span> <span class="subxComment"># else error-byte(ed, err, "unexpected byte: " EAX)</span> +<span id="L125" class="LineNr"> 125 </span> <span class="subxComment"># return 0xffffffff</span> +<span id="L126" class="LineNr"> 126 </span> <span class="subxComment">#</span> +<span id="L127" class="LineNr"> 127 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L128" class="LineNr"> 128 </span> 55/push-EBP +<span id="L129" class="LineNr"> 129 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L130" class="LineNr"> 130 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L131" class="LineNr"> 131 </span><span class="Constant">$scan-next-byte:loop</span>: +<span id="L132" class="LineNr"> 132 </span> <span class="subxComment"># EAX = read-byte(in)</span> +<span id="L133" class="LineNr"> 133 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L134" class="LineNr"> 134 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L135" class="LineNr"> 135 </span> <span class="subxS2Comment"># . . call</span> +<span id="L136" class="LineNr"> 136 </span> e8/call read-byte/disp32 +<span id="L137" class="LineNr"> 137 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L138" class="LineNr"> 138 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L139" class="LineNr"> 139 </span> <span class="subxComment"># if is-hex-lowercase-byte?(EAX) return EAX</span> +<span id="L140" class="LineNr"> 140 </span> <span class="subxS1Comment"># . save EAX for now</span> +<span id="L141" class="LineNr"> 141 </span> 50/push-EAX +<span id="L142" class="LineNr"> 142 </span> <span class="subxS1Comment"># . is-hex-lowercase-byte?(EAX)</span> +<span id="L143" class="LineNr"> 143 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L144" class="LineNr"> 144 </span> 50/push-EAX +<span id="L145" class="LineNr"> 145 </span> <span class="subxS2Comment"># . . call</span> +<span id="L146" class="LineNr"> 146 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L147" class="LineNr"> 147 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L148" class="LineNr"> 148 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L149" class="LineNr"> 149 </span> <span class="subxS1Comment"># . compare with 'false'</span> +<span id="L150" class="LineNr"> 150 </span> 3d/compare-with-EAX 0/imm32 +<span id="L151" class="LineNr"> 151 </span> <span class="subxS1Comment"># . restore EAX (does not affect flags)</span> +<span id="L152" class="LineNr"> 152 </span> 58/pop-to-EAX +<span id="L153" class="LineNr"> 153 </span> <span class="subxS1Comment"># . check whether to return</span> +<span id="L154" class="LineNr"> 154 </span> 75/jump-if-not-equal $scan-next-byte:end/disp8 +<span id="L155" class="LineNr"> 155 </span><span class="Constant">$scan-next-byte:check1</span>: +<span id="L156" class="LineNr"> 156 </span> <span class="subxComment"># if EAX == ' ' continue</span> +<span id="L157" class="LineNr"> 157 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x20/imm32 <span class="subxComment"># compare EAX</span> +<span id="L158" class="LineNr"> 158 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 +<span id="L159" class="LineNr"> 159 </span> <span class="subxComment"># if EAX == '\t' continue</span> +<span id="L160" class="LineNr"> 160 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x9/imm32 <span class="subxComment"># compare EAX</span> +<span id="L161" class="LineNr"> 161 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 +<span id="L162" class="LineNr"> 162 </span> <span class="subxComment"># if EAX == '\n' continue</span> +<span id="L163" class="LineNr"> 163 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xa/imm32 <span class="subxComment"># compare EAX</span> +<span id="L164" class="LineNr"> 164 </span> 74/jump-if-equal $scan-next-byte:loop/disp8 +<span id="L165" class="LineNr"> 165 </span><span class="Constant">$scan-next-byte:check2</span>: +<span id="L166" class="LineNr"> 166 </span> <span class="subxComment"># if EAX == '#' skip-until-newline(in)</span> +<span id="L167" class="LineNr"> 167 </span> 3d/compare-with-EAX 0x23/imm32 +<span id="L168" class="LineNr"> 168 </span> 75/jump-if-not-equal $scan-next-byte:check3/disp8 +<span id="L169" class="LineNr"> 169 </span> <span class="subxS1Comment"># . skip-until-newline(in)</span> +<span id="L170" class="LineNr"> 170 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L171" class="LineNr"> 171 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L172" class="LineNr"> 172 </span> <span class="subxS2Comment"># . . call</span> +<span id="L173" class="LineNr"> 173 </span> e8/call skip-until-newline/disp32 +<span id="L174" class="LineNr"> 174 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L175" class="LineNr"> 175 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L176" class="LineNr"> 176 </span> eb/jump $scan-next-byte:loop/disp8 +<span id="L177" class="LineNr"> 177 </span><span class="Constant">$scan-next-byte:check3</span>: +<span id="L178" class="LineNr"> 178 </span><span class="subxComment"># TODO: error-byte takes a buffered-file, not a (fd or (address stream))</span> +<span id="L179" class="LineNr"> 179 </span> <span class="subxComment"># otherwise error-byte(ed, err, msg, EAX)</span> +<span id="L180" class="LineNr"> 180 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L181" class="LineNr"> 181 </span> 50/push-EAX +<span id="L182" class="LineNr"> 182 </span> 68/push <span class="Constant">"scan-next-byte: invalid byte"</span>/imm32 +<span id="L183" class="LineNr"> 183 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+12)</span> +<span id="L184" class="LineNr"> 184 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x10/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+16)</span> +<span id="L185" class="LineNr"> 185 </span> <span class="subxS2Comment"># . . call</span> +<span id="L186" class="LineNr"> 186 </span> e8/call error-byte/disp32 <span class="subxComment"># never returns</span> +<span id="L187" class="LineNr"> 187 </span><span class="Constant">$scan-next-byte:end</span>: +<span id="L188" class="LineNr"> 188 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L189" class="LineNr"> 189 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L190" class="LineNr"> 190 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L191" class="LineNr"> 191 </span> 5d/pop-to-EBP +<span id="L192" class="LineNr"> 192 </span> c3/return +<span id="L193" class="LineNr"> 193 </span> +<span id="L194" class="LineNr"> 194 </span><span class="subxTest">test-scan-next-byte</span>: +<span id="L195" class="LineNr"> 195 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L196" class="LineNr"> 196 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L197" class="LineNr"> 197 </span> 55/push-EBP +<span id="L198" class="LineNr"> 198 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L199" class="LineNr"> 199 </span> <span class="subxComment"># clear all streams</span> +<span id="L200" class="LineNr"> 200 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L201" class="LineNr"> 201 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L202" class="LineNr"> 202 </span> 68/push _test-stream/imm32 +<span id="L203" class="LineNr"> 203 </span> <span class="subxS2Comment"># . . call</span> +<span id="L204" class="LineNr"> 204 </span> e8/call clear-stream/disp32 +<span id="L205" class="LineNr"> 205 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L206" class="LineNr"> 206 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L207" class="LineNr"> 207 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L208" class="LineNr"> 208 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L209" class="LineNr"> 209 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L210" class="LineNr"> 210 </span> 05/add-to-EAX 4/imm32 +<span id="L211" class="LineNr"> 211 </span> 50/push-EAX +<span id="L212" class="LineNr"> 212 </span> <span class="subxS2Comment"># . . call</span> +<span id="L213" class="LineNr"> 213 </span> e8/call clear-stream/disp32 +<span id="L214" class="LineNr"> 214 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L215" class="LineNr"> 215 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L216" class="LineNr"> 216 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L217" class="LineNr"> 217 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L218" class="LineNr"> 218 </span> 68/push _test-error-stream/imm32 +<span id="L219" class="LineNr"> 219 </span> <span class="subxS2Comment"># . . call</span> +<span id="L220" class="LineNr"> 220 </span> e8/call clear-stream/disp32 +<span id="L221" class="LineNr"> 221 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L222" class="LineNr"> 222 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L223" class="LineNr"> 223 </span> <span class="subxComment"># initialize '_test-stream' to "abc"</span> +<span id="L224" class="LineNr"> 224 </span> <span class="subxS1Comment"># . write(_test-stream, "abc")</span> +<span id="L225" class="LineNr"> 225 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L226" class="LineNr"> 226 </span> 68/push <span class="Constant">"abc"</span>/imm32 +<span id="L227" class="LineNr"> 227 </span> 68/push _test-stream/imm32 +<span id="L228" class="LineNr"> 228 </span> <span class="subxS2Comment"># . . call</span> +<span id="L229" class="LineNr"> 229 </span> e8/call write/disp32 +<span id="L230" class="LineNr"> 230 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L231" class="LineNr"> 231 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L232" class="LineNr"> 232 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L233" class="LineNr"> 233 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L234" class="LineNr"> 234 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L235" class="LineNr"> 235 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L236" class="LineNr"> 236 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L237" class="LineNr"> 237 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L238" class="LineNr"> 238 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L239" class="LineNr"> 239 </span> 51/push-ECX/ed +<span id="L240" class="LineNr"> 240 </span> <span class="subxS2Comment"># . . call</span> +<span id="L241" class="LineNr"> 241 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L242" class="LineNr"> 242 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L243" class="LineNr"> 243 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L244" class="LineNr"> 244 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L245" class="LineNr"> 245 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L246" class="LineNr"> 246 </span> 51/push-ECX/ed +<span id="L247" class="LineNr"> 247 </span> 68/push _test-error-stream/imm32 +<span id="L248" class="LineNr"> 248 </span> 68/push _test-buffered-file/imm32 +<span id="L249" class="LineNr"> 249 </span> <span class="subxS2Comment"># . . call</span> +<span id="L250" class="LineNr"> 250 </span> e8/call scan-next-byte/disp32 +<span id="L251" class="LineNr"> 251 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L252" class="LineNr"> 252 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L253" class="LineNr"> 253 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L254" class="LineNr"> 254 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L255" class="LineNr"> 255 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L256" class="LineNr"> 256 </span> 59/pop-to-ECX +<span id="L257" class="LineNr"> 257 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L258" class="LineNr"> 258 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L259" class="LineNr"> 259 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L260" class="LineNr"> 260 </span> 68/push <span class="Constant">"F - test-scan-next-byte: unexpected abort"</span>/imm32 +<span id="L261" class="LineNr"> 261 </span> 68/push 0/imm32 +<span id="L262" class="LineNr"> 262 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L263" class="LineNr"> 263 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L264" class="LineNr"> 264 </span> <span class="subxS2Comment"># . . call</span> +<span id="L265" class="LineNr"> 265 </span> e8/call check-ints-equal/disp32 +<span id="L266" class="LineNr"> 266 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L267" class="LineNr"> 267 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L268" class="LineNr"> 268 </span> <span class="subxComment"># return if abort</span> +<span id="L269" class="LineNr"> 269 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L270" class="LineNr"> 270 </span> 75/jump-if-not-equal $test-scan-next-byte:end/disp8 +<span id="L271" class="LineNr"> 271 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L272" class="LineNr"> 272 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L273" class="LineNr"> 273 </span> 68/push <span class="Constant">"F - test-scan-next-byte"</span>/imm32 +<span id="L274" class="LineNr"> 274 </span> 68/push 0x61/imm32/a +<span id="L275" class="LineNr"> 275 </span> 50/push-EAX +<span id="L276" class="LineNr"> 276 </span> <span class="subxS2Comment"># . . call</span> +<span id="L277" class="LineNr"> 277 </span> e8/call check-ints-equal/disp32 +<span id="L278" class="LineNr"> 278 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L279" class="LineNr"> 279 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L280" class="LineNr"> 280 </span><span class="Constant">$test-scan-next-byte:end</span>: +<span id="L281" class="LineNr"> 281 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L282" class="LineNr"> 282 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L283" class="LineNr"> 283 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L284" class="LineNr"> 284 </span> 5d/pop-to-EBP +<span id="L285" class="LineNr"> 285 </span> c3/return +<span id="L286" class="LineNr"> 286 </span> +<span id="L287" class="LineNr"> 287 </span><span class="subxTest">test-scan-next-byte-skips-whitespace</span>: +<span id="L288" class="LineNr"> 288 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L289" class="LineNr"> 289 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L290" class="LineNr"> 290 </span> 55/push-EBP +<span id="L291" class="LineNr"> 291 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L292" class="LineNr"> 292 </span> <span class="subxComment"># clear all streams</span> +<span id="L293" class="LineNr"> 293 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L294" class="LineNr"> 294 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L295" class="LineNr"> 295 </span> 68/push _test-stream/imm32 +<span id="L296" class="LineNr"> 296 </span> <span class="subxS2Comment"># . . call</span> +<span id="L297" class="LineNr"> 297 </span> e8/call clear-stream/disp32 +<span id="L298" class="LineNr"> 298 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L299" class="LineNr"> 299 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L300" class="LineNr"> 300 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L301" class="LineNr"> 301 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L302" class="LineNr"> 302 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L303" class="LineNr"> 303 </span> 05/add-to-EAX 4/imm32 +<span id="L304" class="LineNr"> 304 </span> 50/push-EAX +<span id="L305" class="LineNr"> 305 </span> <span class="subxS2Comment"># . . call</span> +<span id="L306" class="LineNr"> 306 </span> e8/call clear-stream/disp32 +<span id="L307" class="LineNr"> 307 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L308" class="LineNr"> 308 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L309" class="LineNr"> 309 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L310" class="LineNr"> 310 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L311" class="LineNr"> 311 </span> 68/push _test-error-stream/imm32 +<span id="L312" class="LineNr"> 312 </span> <span class="subxS2Comment"># . . call</span> +<span id="L313" class="LineNr"> 313 </span> e8/call clear-stream/disp32 +<span id="L314" class="LineNr"> 314 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L315" class="LineNr"> 315 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L316" class="LineNr"> 316 </span> <span class="subxComment"># initialize '_test-stream' to input with leading whitespace</span> +<span id="L317" class="LineNr"> 317 </span> <span class="subxS1Comment"># . write(_test-stream, text)</span> +<span id="L318" class="LineNr"> 318 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L319" class="LineNr"> 319 </span> 68/push <span class="Constant">" abc"</span>/imm32 +<span id="L320" class="LineNr"> 320 </span> 68/push _test-stream/imm32 +<span id="L321" class="LineNr"> 321 </span> <span class="subxS2Comment"># . . call</span> +<span id="L322" class="LineNr"> 322 </span> e8/call write/disp32 +<span id="L323" class="LineNr"> 323 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L324" class="LineNr"> 324 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L325" class="LineNr"> 325 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L326" class="LineNr"> 326 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L327" class="LineNr"> 327 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L328" class="LineNr"> 328 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L329" class="LineNr"> 329 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L330" class="LineNr"> 330 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L331" class="LineNr"> 331 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L332" class="LineNr"> 332 </span> 51/push-ECX/ed +<span id="L333" class="LineNr"> 333 </span> <span class="subxS2Comment"># . . call</span> +<span id="L334" class="LineNr"> 334 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L335" class="LineNr"> 335 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L336" class="LineNr"> 336 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L337" class="LineNr"> 337 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L338" class="LineNr"> 338 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L339" class="LineNr"> 339 </span> 51/push-ECX/ed +<span id="L340" class="LineNr"> 340 </span> 68/push _test-error-stream/imm32 +<span id="L341" class="LineNr"> 341 </span> 68/push _test-buffered-file/imm32 +<span id="L342" class="LineNr"> 342 </span> <span class="subxS2Comment"># . . call</span> +<span id="L343" class="LineNr"> 343 </span> e8/call scan-next-byte/disp32 +<span id="L344" class="LineNr"> 344 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L345" class="LineNr"> 345 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L346" class="LineNr"> 346 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L347" class="LineNr"> 347 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L348" class="LineNr"> 348 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L349" class="LineNr"> 349 </span> 59/pop-to-ECX +<span id="L350" class="LineNr"> 350 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L351" class="LineNr"> 351 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L352" class="LineNr"> 352 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L353" class="LineNr"> 353 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-whitespace: unexpected abort"</span>/imm32 +<span id="L354" class="LineNr"> 354 </span> 68/push 0/imm32 +<span id="L355" class="LineNr"> 355 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L356" class="LineNr"> 356 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L357" class="LineNr"> 357 </span> <span class="subxS2Comment"># . . call</span> +<span id="L358" class="LineNr"> 358 </span> e8/call check-ints-equal/disp32 +<span id="L359" class="LineNr"> 359 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L360" class="LineNr"> 360 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L361" class="LineNr"> 361 </span> <span class="subxComment"># return if abort</span> +<span id="L362" class="LineNr"> 362 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L363" class="LineNr"> 363 </span> 75/jump-if-not-equal $test-scan-next-byte-skips-whitespace:end/disp8 +<span id="L364" class="LineNr"> 364 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L365" class="LineNr"> 365 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L366" class="LineNr"> 366 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-whitespace"</span>/imm32 +<span id="L367" class="LineNr"> 367 </span> 68/push 0x61/imm32/a +<span id="L368" class="LineNr"> 368 </span> 50/push-EAX +<span id="L369" class="LineNr"> 369 </span> <span class="subxS2Comment"># . . call</span> +<span id="L370" class="LineNr"> 370 </span> e8/call check-ints-equal/disp32 +<span id="L371" class="LineNr"> 371 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L372" class="LineNr"> 372 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L373" class="LineNr"> 373 </span><span class="Constant">$test-scan-next-byte-skips-whitespace:end</span>: +<span id="L374" class="LineNr"> 374 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L375" class="LineNr"> 375 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L376" class="LineNr"> 376 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L377" class="LineNr"> 377 </span> 5d/pop-to-EBP +<span id="L378" class="LineNr"> 378 </span> c3/return +<span id="L379" class="LineNr"> 379 </span> +<span id="L380" class="LineNr"> 380 </span><span class="subxTest">test-scan-next-byte-skips-comment</span>: +<span id="L381" class="LineNr"> 381 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L382" class="LineNr"> 382 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L383" class="LineNr"> 383 </span> 55/push-EBP +<span id="L384" class="LineNr"> 384 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L385" class="LineNr"> 385 </span> <span class="subxComment"># clear all streams</span> +<span id="L386" class="LineNr"> 386 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L387" class="LineNr"> 387 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L388" class="LineNr"> 388 </span> 68/push _test-stream/imm32 +<span id="L389" class="LineNr"> 389 </span> <span class="subxS2Comment"># . . call</span> +<span id="L390" class="LineNr"> 390 </span> e8/call clear-stream/disp32 +<span id="L391" class="LineNr"> 391 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L392" class="LineNr"> 392 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L393" class="LineNr"> 393 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L394" class="LineNr"> 394 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L395" class="LineNr"> 395 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L396" class="LineNr"> 396 </span> 05/add-to-EAX 4/imm32 +<span id="L397" class="LineNr"> 397 </span> 50/push-EAX +<span id="L398" class="LineNr"> 398 </span> <span class="subxS2Comment"># . . call</span> +<span id="L399" class="LineNr"> 399 </span> e8/call clear-stream/disp32 +<span id="L400" class="LineNr"> 400 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L401" class="LineNr"> 401 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L402" class="LineNr"> 402 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L403" class="LineNr"> 403 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L404" class="LineNr"> 404 </span> 68/push _test-error-stream/imm32 +<span id="L405" class="LineNr"> 405 </span> <span class="subxS2Comment"># . . call</span> +<span id="L406" class="LineNr"> 406 </span> e8/call clear-stream/disp32 +<span id="L407" class="LineNr"> 407 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L408" class="LineNr"> 408 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L409" class="LineNr"> 409 </span> <span class="subxComment"># initialize '_test-stream' to input with leading comment</span> +<span id="L410" class="LineNr"> 410 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> +<span id="L411" class="LineNr"> 411 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L412" class="LineNr"> 412 </span> 68/push <span class="Constant">"#x"</span>/imm32 +<span id="L413" class="LineNr"> 413 </span> 68/push _test-stream/imm32 +<span id="L414" class="LineNr"> 414 </span> <span class="subxS2Comment"># . . call</span> +<span id="L415" class="LineNr"> 415 </span> e8/call write/disp32 +<span id="L416" class="LineNr"> 416 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L417" class="LineNr"> 417 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L418" class="LineNr"> 418 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> +<span id="L419" class="LineNr"> 419 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L420" class="LineNr"> 420 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 +<span id="L421" class="LineNr"> 421 </span> 68/push _test-stream/imm32 +<span id="L422" class="LineNr"> 422 </span> <span class="subxS2Comment"># . . call</span> +<span id="L423" class="LineNr"> 423 </span> e8/call write/disp32 +<span id="L424" class="LineNr"> 424 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L425" class="LineNr"> 425 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L426" class="LineNr"> 426 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> +<span id="L427" class="LineNr"> 427 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L428" class="LineNr"> 428 </span> 68/push <span class="Constant">"ab"</span>/imm32 +<span id="L429" class="LineNr"> 429 </span> 68/push _test-stream/imm32 +<span id="L430" class="LineNr"> 430 </span> <span class="subxS2Comment"># . . call</span> +<span id="L431" class="LineNr"> 431 </span> e8/call write/disp32 +<span id="L432" class="LineNr"> 432 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L433" class="LineNr"> 433 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L434" class="LineNr"> 434 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L435" class="LineNr"> 435 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L436" class="LineNr"> 436 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L437" class="LineNr"> 437 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L438" class="LineNr"> 438 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L439" class="LineNr"> 439 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L440" class="LineNr"> 440 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L441" class="LineNr"> 441 </span> 51/push-ECX/ed +<span id="L442" class="LineNr"> 442 </span> <span class="subxS2Comment"># . . call</span> +<span id="L443" class="LineNr"> 443 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L444" class="LineNr"> 444 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L445" class="LineNr"> 445 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L446" class="LineNr"> 446 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L447" class="LineNr"> 447 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L448" class="LineNr"> 448 </span> 51/push-ECX/ed +<span id="L449" class="LineNr"> 449 </span> 68/push _test-error-stream/imm32 +<span id="L450" class="LineNr"> 450 </span> 68/push _test-buffered-file/imm32 +<span id="L451" class="LineNr"> 451 </span> <span class="subxS2Comment"># . . call</span> +<span id="L452" class="LineNr"> 452 </span> e8/call scan-next-byte/disp32 +<span id="L453" class="LineNr"> 453 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L454" class="LineNr"> 454 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L455" class="LineNr"> 455 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L456" class="LineNr"> 456 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L457" class="LineNr"> 457 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L458" class="LineNr"> 458 </span> 59/pop-to-ECX +<span id="L459" class="LineNr"> 459 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L460" class="LineNr"> 460 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L461" class="LineNr"> 461 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L462" class="LineNr"> 462 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment: unexpected abort"</span>/imm32 +<span id="L463" class="LineNr"> 463 </span> 68/push 0/imm32 +<span id="L464" class="LineNr"> 464 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L465" class="LineNr"> 465 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L466" class="LineNr"> 466 </span> <span class="subxS2Comment"># . . call</span> +<span id="L467" class="LineNr"> 467 </span> e8/call check-ints-equal/disp32 +<span id="L468" class="LineNr"> 468 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L469" class="LineNr"> 469 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L470" class="LineNr"> 470 </span> <span class="subxComment"># return if abort</span> +<span id="L471" class="LineNr"> 471 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L472" class="LineNr"> 472 </span> 75/jump-if-not-equal $test-scan-next-byte-skips-comment:end/disp8 +<span id="L473" class="LineNr"> 473 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L474" class="LineNr"> 474 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L475" class="LineNr"> 475 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment"</span>/imm32 +<span id="L476" class="LineNr"> 476 </span> 68/push 0x61/imm32/a +<span id="L477" class="LineNr"> 477 </span> 50/push-EAX +<span id="L478" class="LineNr"> 478 </span> <span class="subxS2Comment"># . . call</span> +<span id="L479" class="LineNr"> 479 </span> e8/call check-ints-equal/disp32 +<span id="L480" class="LineNr"> 480 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L481" class="LineNr"> 481 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L482" class="LineNr"> 482 </span><span class="Constant">$test-scan-next-byte-skips-comment:end</span>: +<span id="L483" class="LineNr"> 483 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L484" class="LineNr"> 484 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L485" class="LineNr"> 485 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L486" class="LineNr"> 486 </span> 5d/pop-to-EBP +<span id="L487" class="LineNr"> 487 </span> c3/return +<span id="L488" class="LineNr"> 488 </span> +<span id="L489" class="LineNr"> 489 </span><span class="subxTest">test-scan-next-byte-skips-comment-and-whitespace</span>: +<span id="L490" class="LineNr"> 490 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L491" class="LineNr"> 491 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L492" class="LineNr"> 492 </span> 55/push-EBP +<span id="L493" class="LineNr"> 493 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L494" class="LineNr"> 494 </span> <span class="subxComment"># clear all streams</span> +<span id="L495" class="LineNr"> 495 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L496" class="LineNr"> 496 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L497" class="LineNr"> 497 </span> 68/push _test-stream/imm32 +<span id="L498" class="LineNr"> 498 </span> <span class="subxS2Comment"># . . call</span> +<span id="L499" class="LineNr"> 499 </span> e8/call clear-stream/disp32 +<span id="L500" class="LineNr"> 500 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L501" class="LineNr"> 501 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L502" class="LineNr"> 502 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L503" class="LineNr"> 503 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L504" class="LineNr"> 504 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L505" class="LineNr"> 505 </span> 05/add-to-EAX 4/imm32 +<span id="L506" class="LineNr"> 506 </span> 50/push-EAX +<span id="L507" class="LineNr"> 507 </span> <span class="subxS2Comment"># . . call</span> +<span id="L508" class="LineNr"> 508 </span> e8/call clear-stream/disp32 +<span id="L509" class="LineNr"> 509 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L510" class="LineNr"> 510 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L511" class="LineNr"> 511 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L512" class="LineNr"> 512 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L513" class="LineNr"> 513 </span> 68/push _test-error-stream/imm32 +<span id="L514" class="LineNr"> 514 </span> <span class="subxS2Comment"># . . call</span> +<span id="L515" class="LineNr"> 515 </span> e8/call clear-stream/disp32 +<span id="L516" class="LineNr"> 516 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L517" class="LineNr"> 517 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L518" class="LineNr"> 518 </span> <span class="subxComment"># initialize '_test-stream' to input with leading comment and more whitespace after newline</span> +<span id="L519" class="LineNr"> 519 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> +<span id="L520" class="LineNr"> 520 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L521" class="LineNr"> 521 </span> 68/push <span class="Constant">"#x"</span>/imm32 +<span id="L522" class="LineNr"> 522 </span> 68/push _test-stream/imm32 +<span id="L523" class="LineNr"> 523 </span> <span class="subxS2Comment"># . . call</span> +<span id="L524" class="LineNr"> 524 </span> e8/call write/disp32 +<span id="L525" class="LineNr"> 525 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L526" class="LineNr"> 526 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L527" class="LineNr"> 527 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> +<span id="L528" class="LineNr"> 528 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L529" class="LineNr"> 529 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 +<span id="L530" class="LineNr"> 530 </span> 68/push _test-stream/imm32 +<span id="L531" class="LineNr"> 531 </span> <span class="subxS2Comment"># . . call</span> +<span id="L532" class="LineNr"> 532 </span> e8/call write/disp32 +<span id="L533" class="LineNr"> 533 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L534" class="LineNr"> 534 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L535" class="LineNr"> 535 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> +<span id="L536" class="LineNr"> 536 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L537" class="LineNr"> 537 </span> 68/push <span class="Constant">" ab"</span>/imm32 +<span id="L538" class="LineNr"> 538 </span> 68/push _test-stream/imm32 +<span id="L539" class="LineNr"> 539 </span> <span class="subxS2Comment"># . . call</span> +<span id="L540" class="LineNr"> 540 </span> e8/call write/disp32 +<span id="L541" class="LineNr"> 541 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L542" class="LineNr"> 542 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L543" class="LineNr"> 543 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L544" class="LineNr"> 544 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L545" class="LineNr"> 545 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L546" class="LineNr"> 546 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L547" class="LineNr"> 547 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L548" class="LineNr"> 548 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L549" class="LineNr"> 549 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L550" class="LineNr"> 550 </span> 51/push-ECX/ed +<span id="L551" class="LineNr"> 551 </span> <span class="subxS2Comment"># . . call</span> +<span id="L552" class="LineNr"> 552 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L553" class="LineNr"> 553 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L554" class="LineNr"> 554 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L555" class="LineNr"> 555 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L556" class="LineNr"> 556 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L557" class="LineNr"> 557 </span> 51/push-ECX/ed +<span id="L558" class="LineNr"> 558 </span> 68/push _test-error-stream/imm32 +<span id="L559" class="LineNr"> 559 </span> 68/push _test-buffered-file/imm32 +<span id="L560" class="LineNr"> 560 </span> <span class="subxS2Comment"># . . call</span> +<span id="L561" class="LineNr"> 561 </span> e8/call scan-next-byte/disp32 +<span id="L562" class="LineNr"> 562 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L563" class="LineNr"> 563 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L564" class="LineNr"> 564 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L565" class="LineNr"> 565 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L566" class="LineNr"> 566 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L567" class="LineNr"> 567 </span> 59/pop-to-ECX +<span id="L568" class="LineNr"> 568 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L569" class="LineNr"> 569 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L570" class="LineNr"> 570 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L571" class="LineNr"> 571 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment-and-whitespace: unexpected abort"</span>/imm32 +<span id="L572" class="LineNr"> 572 </span> 68/push 0/imm32 +<span id="L573" class="LineNr"> 573 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L574" class="LineNr"> 574 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L575" class="LineNr"> 575 </span> <span class="subxS2Comment"># . . call</span> +<span id="L576" class="LineNr"> 576 </span> e8/call check-ints-equal/disp32 +<span id="L577" class="LineNr"> 577 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L578" class="LineNr"> 578 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L579" class="LineNr"> 579 </span> <span class="subxComment"># return if abort</span> +<span id="L580" class="LineNr"> 580 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L581" class="LineNr"> 581 </span> 75/jump-if-not-equal $test-scan-next-byte-skips-comment-and-whitespace:end/disp8 +<span id="L582" class="LineNr"> 582 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L583" class="LineNr"> 583 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L584" class="LineNr"> 584 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-comment-and-whitespace"</span>/imm32 +<span id="L585" class="LineNr"> 585 </span> 68/push 0x61/imm32/a +<span id="L586" class="LineNr"> 586 </span> 50/push-EAX +<span id="L587" class="LineNr"> 587 </span> <span class="subxS2Comment"># . . call</span> +<span id="L588" class="LineNr"> 588 </span> e8/call check-ints-equal/disp32 +<span id="L589" class="LineNr"> 589 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L590" class="LineNr"> 590 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L591" class="LineNr"> 591 </span><span class="Constant">$test-scan-next-byte-skips-comment-and-whitespace:end</span>: +<span id="L592" class="LineNr"> 592 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L593" class="LineNr"> 593 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L594" class="LineNr"> 594 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L595" class="LineNr"> 595 </span> 5d/pop-to-EBP +<span id="L596" class="LineNr"> 596 </span> c3/return +<span id="L597" class="LineNr"> 597 </span> +<span id="L598" class="LineNr"> 598 </span><span class="subxTest">test-scan-next-byte-skips-whitespace-and-comment</span>: +<span id="L599" class="LineNr"> 599 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L600" class="LineNr"> 600 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L601" class="LineNr"> 601 </span> 55/push-EBP +<span id="L602" class="LineNr"> 602 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L603" class="LineNr"> 603 </span> <span class="subxComment"># clear all streams</span> +<span id="L604" class="LineNr"> 604 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L605" class="LineNr"> 605 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L606" class="LineNr"> 606 </span> 68/push _test-stream/imm32 +<span id="L607" class="LineNr"> 607 </span> <span class="subxS2Comment"># . . call</span> +<span id="L608" class="LineNr"> 608 </span> e8/call clear-stream/disp32 +<span id="L609" class="LineNr"> 609 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L610" class="LineNr"> 610 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L611" class="LineNr"> 611 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L612" class="LineNr"> 612 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L613" class="LineNr"> 613 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L614" class="LineNr"> 614 </span> 05/add-to-EAX 4/imm32 +<span id="L615" class="LineNr"> 615 </span> 50/push-EAX +<span id="L616" class="LineNr"> 616 </span> <span class="subxS2Comment"># . . call</span> +<span id="L617" class="LineNr"> 617 </span> e8/call clear-stream/disp32 +<span id="L618" class="LineNr"> 618 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L619" class="LineNr"> 619 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L620" class="LineNr"> 620 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L621" class="LineNr"> 621 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L622" class="LineNr"> 622 </span> 68/push _test-error-stream/imm32 +<span id="L623" class="LineNr"> 623 </span> <span class="subxS2Comment"># . . call</span> +<span id="L624" class="LineNr"> 624 </span> e8/call clear-stream/disp32 +<span id="L625" class="LineNr"> 625 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L626" class="LineNr"> 626 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L627" class="LineNr"> 627 </span> <span class="subxComment"># initialize '_test-stream' to input with leading whitespace and comment</span> +<span id="L628" class="LineNr"> 628 </span> <span class="subxS1Comment"># . write(_test-stream, comment)</span> +<span id="L629" class="LineNr"> 629 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L630" class="LineNr"> 630 </span> 68/push <span class="Constant">" #x"</span>/imm32 +<span id="L631" class="LineNr"> 631 </span> 68/push _test-stream/imm32 +<span id="L632" class="LineNr"> 632 </span> <span class="subxS2Comment"># . . call</span> +<span id="L633" class="LineNr"> 633 </span> e8/call write/disp32 +<span id="L634" class="LineNr"> 634 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L635" class="LineNr"> 635 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L636" class="LineNr"> 636 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> +<span id="L637" class="LineNr"> 637 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L638" class="LineNr"> 638 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 +<span id="L639" class="LineNr"> 639 </span> 68/push _test-stream/imm32 +<span id="L640" class="LineNr"> 640 </span> <span class="subxS2Comment"># . . call</span> +<span id="L641" class="LineNr"> 641 </span> e8/call write/disp32 +<span id="L642" class="LineNr"> 642 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L643" class="LineNr"> 643 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L644" class="LineNr"> 644 </span> <span class="subxS1Comment"># . write(_test-stream, real text)</span> +<span id="L645" class="LineNr"> 645 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L646" class="LineNr"> 646 </span> 68/push <span class="Constant">"ab"</span>/imm32 +<span id="L647" class="LineNr"> 647 </span> 68/push _test-stream/imm32 +<span id="L648" class="LineNr"> 648 </span> <span class="subxS2Comment"># . . call</span> +<span id="L649" class="LineNr"> 649 </span> e8/call write/disp32 +<span id="L650" class="LineNr"> 650 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L651" class="LineNr"> 651 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L652" class="LineNr"> 652 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L653" class="LineNr"> 653 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L654" class="LineNr"> 654 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L655" class="LineNr"> 655 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L656" class="LineNr"> 656 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L657" class="LineNr"> 657 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L658" class="LineNr"> 658 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L659" class="LineNr"> 659 </span> 51/push-ECX/ed +<span id="L660" class="LineNr"> 660 </span> <span class="subxS2Comment"># . . call</span> +<span id="L661" class="LineNr"> 661 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L662" class="LineNr"> 662 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L663" class="LineNr"> 663 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L664" class="LineNr"> 664 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L665" class="LineNr"> 665 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L666" class="LineNr"> 666 </span> 51/push-ECX/ed +<span id="L667" class="LineNr"> 667 </span> 68/push _test-error-stream/imm32 +<span id="L668" class="LineNr"> 668 </span> 68/push _test-buffered-file/imm32 +<span id="L669" class="LineNr"> 669 </span> <span class="subxS2Comment"># . . call</span> +<span id="L670" class="LineNr"> 670 </span> e8/call scan-next-byte/disp32 +<span id="L671" class="LineNr"> 671 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L672" class="LineNr"> 672 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L673" class="LineNr"> 673 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L674" class="LineNr"> 674 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L675" class="LineNr"> 675 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L676" class="LineNr"> 676 </span> 59/pop-to-ECX +<span id="L677" class="LineNr"> 677 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L678" class="LineNr"> 678 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L679" class="LineNr"> 679 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L680" class="LineNr"> 680 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-whitespace-and-comment: unexpected abort"</span>/imm32 +<span id="L681" class="LineNr"> 681 </span> 68/push 0/imm32 +<span id="L682" class="LineNr"> 682 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L683" class="LineNr"> 683 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L684" class="LineNr"> 684 </span> <span class="subxS2Comment"># . . call</span> +<span id="L685" class="LineNr"> 685 </span> e8/call check-ints-equal/disp32 +<span id="L686" class="LineNr"> 686 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L687" class="LineNr"> 687 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L688" class="LineNr"> 688 </span> <span class="subxComment"># return if abort</span> +<span id="L689" class="LineNr"> 689 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L690" class="LineNr"> 690 </span> 75/jump-if-not-equal $test-scan-next-byte-skips-whitespace-and-comment:end/disp8 +<span id="L691" class="LineNr"> 691 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L692" class="LineNr"> 692 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L693" class="LineNr"> 693 </span> 68/push <span class="Constant">"F - test-scan-next-byte-skips-whitespace-and-comment"</span>/imm32 +<span id="L694" class="LineNr"> 694 </span> 68/push 0x61/imm32/a +<span id="L695" class="LineNr"> 695 </span> 50/push-EAX +<span id="L696" class="LineNr"> 696 </span> <span class="subxS2Comment"># . . call</span> +<span id="L697" class="LineNr"> 697 </span> e8/call check-ints-equal/disp32 +<span id="L698" class="LineNr"> 698 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L699" class="LineNr"> 699 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L700" class="LineNr"> 700 </span><span class="Constant">$test-scan-next-byte-skips-whitespace-and-comment:end</span>: +<span id="L701" class="LineNr"> 701 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L702" class="LineNr"> 702 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L703" class="LineNr"> 703 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L704" class="LineNr"> 704 </span> 5d/pop-to-EBP +<span id="L705" class="LineNr"> 705 </span> c3/return +<span id="L706" class="LineNr"> 706 </span> +<span id="L707" class="LineNr"> 707 </span><span class="subxTest">test-scan-next-byte-reads-final-byte</span>: +<span id="L708" class="LineNr"> 708 </span> <span class="subxH1Comment"># - check that the first two bytes of the input are assembled into the resulting number</span> +<span id="L709" class="LineNr"> 709 </span> <span class="subxComment"># This test uses exit-descriptors. Use EBP for setting up local variables.</span> +<span id="L710" class="LineNr"> 710 </span> 55/push-EBP +<span id="L711" class="LineNr"> 711 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L712" class="LineNr"> 712 </span> <span class="subxComment"># clear all streams</span> +<span id="L713" class="LineNr"> 713 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L714" class="LineNr"> 714 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L715" class="LineNr"> 715 </span> 68/push _test-stream/imm32 +<span id="L716" class="LineNr"> 716 </span> <span class="subxS2Comment"># . . call</span> +<span id="L717" class="LineNr"> 717 </span> e8/call clear-stream/disp32 +<span id="L718" class="LineNr"> 718 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L719" class="LineNr"> 719 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L720" class="LineNr"> 720 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L721" class="LineNr"> 721 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L722" class="LineNr"> 722 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L723" class="LineNr"> 723 </span> 05/add-to-EAX 4/imm32 +<span id="L724" class="LineNr"> 724 </span> 50/push-EAX +<span id="L725" class="LineNr"> 725 </span> <span class="subxS2Comment"># . . call</span> +<span id="L726" class="LineNr"> 726 </span> e8/call clear-stream/disp32 +<span id="L727" class="LineNr"> 727 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L728" class="LineNr"> 728 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L729" class="LineNr"> 729 </span> <span class="subxS1Comment"># . clear-stream(_test-error-stream)</span> +<span id="L730" class="LineNr"> 730 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L731" class="LineNr"> 731 </span> 68/push _test-error-stream/imm32 +<span id="L732" class="LineNr"> 732 </span> <span class="subxS2Comment"># . . call</span> +<span id="L733" class="LineNr"> 733 </span> e8/call clear-stream/disp32 +<span id="L734" class="LineNr"> 734 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L735" class="LineNr"> 735 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L736" class="LineNr"> 736 </span> <span class="subxComment"># initialize '_test-stream' to input with single character</span> +<span id="L737" class="LineNr"> 737 </span> <span class="subxS1Comment"># . write(_test-stream, character)</span> +<span id="L738" class="LineNr"> 738 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L739" class="LineNr"> 739 </span> 68/push <span class="Constant">"a"</span>/imm32 +<span id="L740" class="LineNr"> 740 </span> 68/push _test-stream/imm32 +<span id="L741" class="LineNr"> 741 </span> <span class="subxS2Comment"># . . call</span> +<span id="L742" class="LineNr"> 742 </span> e8/call write/disp32 +<span id="L743" class="LineNr"> 743 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L744" class="LineNr"> 744 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L745" class="LineNr"> 745 </span> <span class="subxComment"># initialize exit-descriptor 'ed' for the call to 'scan-next-byte' below</span> +<span id="L746" class="LineNr"> 746 </span> <span class="subxS1Comment"># . var ed/ECX : exit-descriptor</span> +<span id="L747" class="LineNr"> 747 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># subtract from ESP</span> +<span id="L748" class="LineNr"> 748 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to ECX</span> +<span id="L749" class="LineNr"> 749 </span> <span class="subxS1Comment"># . tailor-exit-descriptor(ed, 12)</span> +<span id="L750" class="LineNr"> 750 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L751" class="LineNr"> 751 </span> 68/push 0xc/imm32/nbytes-of-args-for-scan-next-byte +<span id="L752" class="LineNr"> 752 </span> 51/push-ECX/ed +<span id="L753" class="LineNr"> 753 </span> <span class="subxS2Comment"># . . call</span> +<span id="L754" class="LineNr"> 754 </span> e8/call tailor-exit-descriptor/disp32 +<span id="L755" class="LineNr"> 755 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L756" class="LineNr"> 756 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L757" class="LineNr"> 757 </span> <span class="subxComment"># EAX = scan-next-byte(_test-buffered-file, _test-error-stream, ed)</span> +<span id="L758" class="LineNr"> 758 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L759" class="LineNr"> 759 </span> 51/push-ECX/ed +<span id="L760" class="LineNr"> 760 </span> 68/push _test-error-stream/imm32 +<span id="L761" class="LineNr"> 761 </span> 68/push _test-buffered-file/imm32 +<span id="L762" class="LineNr"> 762 </span> <span class="subxS2Comment"># . . call</span> +<span id="L763" class="LineNr"> 763 </span> e8/call scan-next-byte/disp32 +<span id="L764" class="LineNr"> 764 </span> <span class="subxComment"># registers except ESP may be clobbered at this point</span> +<span id="L765" class="LineNr"> 765 </span> <span class="subxComment"># pop args to scan-next-bytes</span> +<span id="L766" class="LineNr"> 766 </span> <span class="subxS2Comment"># . . discard first 2 args</span> +<span id="L767" class="LineNr"> 767 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L768" class="LineNr"> 768 </span> <span class="subxS2Comment"># . . restore ed</span> +<span id="L769" class="LineNr"> 769 </span> 59/pop-to-ECX +<span id="L770" class="LineNr"> 770 </span> <span class="subxComment"># check that scan-next-byte didn't abort</span> +<span id="L771" class="LineNr"> 771 </span> <span class="subxS1Comment"># . check-ints-equal(ed->value, 0, msg)</span> +<span id="L772" class="LineNr"> 772 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L773" class="LineNr"> 773 </span> 68/push <span class="Constant">"F - test-scan-next-byte-reads-final-byte: unexpected abort"</span>/imm32 +<span id="L774" class="LineNr"> 774 </span> 68/push 0/imm32 +<span id="L775" class="LineNr"> 775 </span> <span class="subxS2Comment"># . . push ed->value</span> +<span id="L776" class="LineNr"> 776 </span> ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(ECX+4)</span> +<span id="L777" class="LineNr"> 777 </span> <span class="subxS2Comment"># . . call</span> +<span id="L778" class="LineNr"> 778 </span> e8/call check-ints-equal/disp32 +<span id="L779" class="LineNr"> 779 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L780" class="LineNr"> 780 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L781" class="LineNr"> 781 </span> <span class="subxComment"># return if abort</span> +<span id="L782" class="LineNr"> 782 </span> 81 7/subop/compare 1/mod/*+disp8 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/disp8 0/imm32 <span class="subxComment"># compare *(ECX+4)</span> +<span id="L783" class="LineNr"> 783 </span> 75/jump-if-not-equal $test-scan-next-byte-reads-final-byte:end/disp8 +<span id="L784" class="LineNr"> 784 </span> <span class="subxComment"># check-ints-equal(EAX, 0x61/a, msg)</span> +<span id="L785" class="LineNr"> 785 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L786" class="LineNr"> 786 </span> 68/push <span class="Constant">"F - test-scan-next-byte-reads-final-byte"</span>/imm32 +<span id="L787" class="LineNr"> 787 </span> 68/push 0x61/imm32/a +<span id="L788" class="LineNr"> 788 </span> 50/push-EAX +<span id="L789" class="LineNr"> 789 </span> <span class="subxS2Comment"># . . call</span> +<span id="L790" class="LineNr"> 790 </span> e8/call check-ints-equal/disp32 +<span id="L791" class="LineNr"> 791 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L792" class="LineNr"> 792 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L793" class="LineNr"> 793 </span><span class="Constant">$test-scan-next-byte-reads-final-byte:end</span>: +<span id="L794" class="LineNr"> 794 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L795" class="LineNr"> 795 </span> <span class="subxComment"># don't restore ESP from EBP; manually reclaim locals</span> +<span id="L796" class="LineNr"> 796 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L797" class="LineNr"> 797 </span> 5d/pop-to-EBP +<span id="L798" class="LineNr"> 798 </span> c3/return +<span id="L799" class="LineNr"> 799 </span> +<span id="L800" class="LineNr"> 800 </span><span class="subxFunction">is-hex-lowercase-byte?</span>: <span class="subxComment"># c : byte -> bool/EAX</span> +<span id="L801" class="LineNr"> 801 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L802" class="LineNr"> 802 </span> 55/push-EBP +<span id="L803" class="LineNr"> 803 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L804" class="LineNr"> 804 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L805" class="LineNr"> 805 </span> 51/push-ECX +<span id="L806" class="LineNr"> 806 </span> <span class="subxComment"># ECX = c</span> +<span id="L807" class="LineNr"> 807 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 1/r32/ECX 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+8) to ECX</span> +<span id="L808" class="LineNr"> 808 </span> <span class="subxComment"># return false if c < '0'</span> +<span id="L809" class="LineNr"> 809 </span> b8/copy-to-EAX 0/imm32/false +<span id="L810" class="LineNr"> 810 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x30/imm32 <span class="subxComment"># compare ECX</span> +<span id="L811" class="LineNr"> 811 </span> 7c/jump-if-lesser $is-hex-lowercase-byte?:end/disp8 +<span id="L812" class="LineNr"> 812 </span> <span class="subxComment"># return false if c > 'f'</span> +<span id="L813" class="LineNr"> 813 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x66/imm32 <span class="subxComment"># compare ECX</span> +<span id="L814" class="LineNr"> 814 </span> 7f/jump-if-greater $is-hex-lowercase-byte?:end/disp8 +<span id="L815" class="LineNr"> 815 </span> <span class="subxComment"># return true if c <= '9'</span> +<span id="L816" class="LineNr"> 816 </span> b8/copy-to-EAX 1/imm32/true +<span id="L817" class="LineNr"> 817 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x39/imm32 <span class="subxComment"># compare ECX</span> +<span id="L818" class="LineNr"> 818 </span> 7e/jump-if-lesser-or-equal $is-hex-lowercase-byte?:end/disp8 +<span id="L819" class="LineNr"> 819 </span> <span class="subxComment"># return true if c >= 'a'</span> +<span id="L820" class="LineNr"> 820 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x61/imm32 <span class="subxComment"># compare ECX</span> +<span id="L821" class="LineNr"> 821 </span> 7d/jump-if-greater-or-equal $is-hex-lowercase-byte?:end/disp8 +<span id="L822" class="LineNr"> 822 </span> <span class="subxComment"># otherwise return false</span> +<span id="L823" class="LineNr"> 823 </span> b8/copy-to-EAX 0/imm32/false +<span id="L824" class="LineNr"> 824 </span><span class="Constant">$is-hex-lowercase-byte?:end</span>: +<span id="L825" class="LineNr"> 825 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L826" class="LineNr"> 826 </span> 59/pop-to-ECX +<span id="L827" class="LineNr"> 827 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L828" class="LineNr"> 828 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L829" class="LineNr"> 829 </span> 5d/pop-to-EBP +<span id="L830" class="LineNr"> 830 </span> c3/return +<span id="L831" class="LineNr"> 831 </span> +<span id="L832" class="LineNr"> 832 </span><span class="subxTest">test-hex-below-0</span>: +<span id="L833" class="LineNr"> 833 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x2f)</span> +<span id="L834" class="LineNr"> 834 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L835" class="LineNr"> 835 </span> 68/push 0x2f/imm32 +<span id="L836" class="LineNr"> 836 </span> <span class="subxS2Comment"># . . call</span> +<span id="L837" class="LineNr"> 837 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L838" class="LineNr"> 838 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L839" class="LineNr"> 839 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L840" class="LineNr"> 840 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> +<span id="L841" class="LineNr"> 841 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L842" class="LineNr"> 842 </span> 68/push <span class="Constant">"F - test-hex-below-0"</span>/imm32 +<span id="L843" class="LineNr"> 843 </span> 68/push 0/imm32/false +<span id="L844" class="LineNr"> 844 </span> 50/push-EAX +<span id="L845" class="LineNr"> 845 </span> <span class="subxS2Comment"># . . call</span> +<span id="L846" class="LineNr"> 846 </span> e8/call check-ints-equal/disp32 +<span id="L847" class="LineNr"> 847 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L848" class="LineNr"> 848 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L849" class="LineNr"> 849 </span> c3/return +<span id="L850" class="LineNr"> 850 </span> +<span id="L851" class="LineNr"> 851 </span><span class="subxTest">test-hex-0-to-9</span>: +<span id="L852" class="LineNr"> 852 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x30)</span> +<span id="L853" class="LineNr"> 853 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L854" class="LineNr"> 854 </span> 68/push 0x30/imm32 +<span id="L855" class="LineNr"> 855 </span> <span class="subxS2Comment"># . . call</span> +<span id="L856" class="LineNr"> 856 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L857" class="LineNr"> 857 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L858" class="LineNr"> 858 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L859" class="LineNr"> 859 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L860" class="LineNr"> 860 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L861" class="LineNr"> 861 </span> 68/push <span class="Constant">"F - test-hex-at-0"</span>/imm32 +<span id="L862" class="LineNr"> 862 </span> 68/push 1/imm32/true +<span id="L863" class="LineNr"> 863 </span> 50/push-EAX +<span id="L864" class="LineNr"> 864 </span> <span class="subxS2Comment"># . . call</span> +<span id="L865" class="LineNr"> 865 </span> e8/call check-ints-equal/disp32 +<span id="L866" class="LineNr"> 866 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L867" class="LineNr"> 867 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L868" class="LineNr"> 868 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x39)</span> +<span id="L869" class="LineNr"> 869 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L870" class="LineNr"> 870 </span> 68/push 0x39/imm32 +<span id="L871" class="LineNr"> 871 </span> <span class="subxS2Comment"># . . call</span> +<span id="L872" class="LineNr"> 872 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L873" class="LineNr"> 873 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L874" class="LineNr"> 874 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L875" class="LineNr"> 875 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L876" class="LineNr"> 876 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L877" class="LineNr"> 877 </span> 68/push <span class="Constant">"F - test-hex-at-9"</span>/imm32 +<span id="L878" class="LineNr"> 878 </span> 68/push 1/imm32/true +<span id="L879" class="LineNr"> 879 </span> 50/push-EAX +<span id="L880" class="LineNr"> 880 </span> <span class="subxS2Comment"># . . call</span> +<span id="L881" class="LineNr"> 881 </span> e8/call check-ints-equal/disp32 +<span id="L882" class="LineNr"> 882 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L883" class="LineNr"> 883 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L884" class="LineNr"> 884 </span> c3/return +<span id="L885" class="LineNr"> 885 </span> +<span id="L886" class="LineNr"> 886 </span><span class="subxTest">test-hex-above-9-to-a</span>: +<span id="L887" class="LineNr"> 887 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x3a)</span> +<span id="L888" class="LineNr"> 888 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L889" class="LineNr"> 889 </span> 68/push 0x3a/imm32 +<span id="L890" class="LineNr"> 890 </span> <span class="subxS2Comment"># . . call</span> +<span id="L891" class="LineNr"> 891 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L892" class="LineNr"> 892 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L893" class="LineNr"> 893 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L894" class="LineNr"> 894 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> +<span id="L895" class="LineNr"> 895 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L896" class="LineNr"> 896 </span> 68/push <span class="Constant">"F - test-hex-above-9-to-a"</span>/imm32 +<span id="L897" class="LineNr"> 897 </span> 68/push 0/imm32/false +<span id="L898" class="LineNr"> 898 </span> 50/push-EAX +<span id="L899" class="LineNr"> 899 </span> <span class="subxS2Comment"># . . call</span> +<span id="L900" class="LineNr"> 900 </span> e8/call check-ints-equal/disp32 +<span id="L901" class="LineNr"> 901 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L902" class="LineNr"> 902 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L903" class="LineNr"> 903 </span> c3/return +<span id="L904" class="LineNr"> 904 </span> +<span id="L905" class="LineNr"> 905 </span><span class="subxTest">test-hex-a-to-f</span>: +<span id="L906" class="LineNr"> 906 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x61)</span> +<span id="L907" class="LineNr"> 907 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L908" class="LineNr"> 908 </span> 68/push 0x61/imm32 +<span id="L909" class="LineNr"> 909 </span> <span class="subxS2Comment"># . . call</span> +<span id="L910" class="LineNr"> 910 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L911" class="LineNr"> 911 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L912" class="LineNr"> 912 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L913" class="LineNr"> 913 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L914" class="LineNr"> 914 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L915" class="LineNr"> 915 </span> 68/push <span class="Constant">"F - test-hex-at-a"</span>/imm32 +<span id="L916" class="LineNr"> 916 </span> 68/push 1/imm32/true +<span id="L917" class="LineNr"> 917 </span> 50/push-EAX +<span id="L918" class="LineNr"> 918 </span> <span class="subxS2Comment"># . . call</span> +<span id="L919" class="LineNr"> 919 </span> e8/call check-ints-equal/disp32 +<span id="L920" class="LineNr"> 920 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L921" class="LineNr"> 921 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L922" class="LineNr"> 922 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x66)</span> +<span id="L923" class="LineNr"> 923 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L924" class="LineNr"> 924 </span> 68/push 0x66/imm32 +<span id="L925" class="LineNr"> 925 </span> <span class="subxS2Comment"># . . call</span> +<span id="L926" class="LineNr"> 926 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L927" class="LineNr"> 927 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L928" class="LineNr"> 928 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L929" class="LineNr"> 929 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L930" class="LineNr"> 930 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L931" class="LineNr"> 931 </span> 68/push <span class="Constant">"F - test-hex-at-f"</span>/imm32 +<span id="L932" class="LineNr"> 932 </span> 68/push 1/imm32/true +<span id="L933" class="LineNr"> 933 </span> 50/push-EAX +<span id="L934" class="LineNr"> 934 </span> <span class="subxS2Comment"># . . call</span> +<span id="L935" class="LineNr"> 935 </span> e8/call check-ints-equal/disp32 +<span id="L936" class="LineNr"> 936 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L937" class="LineNr"> 937 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L938" class="LineNr"> 938 </span> c3/return +<span id="L939" class="LineNr"> 939 </span> +<span id="L940" class="LineNr"> 940 </span><span class="subxTest">test-hex-above-f</span>: +<span id="L941" class="LineNr"> 941 </span> <span class="subxComment"># is-hex-lowercase-byte?(0x67)</span> +<span id="L942" class="LineNr"> 942 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L943" class="LineNr"> 943 </span> 68/push 0x67/imm32 +<span id="L944" class="LineNr"> 944 </span> <span class="subxS2Comment"># . . call</span> +<span id="L945" class="LineNr"> 945 </span> e8/call is-hex-lowercase-byte?/disp32 +<span id="L946" class="LineNr"> 946 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L947" class="LineNr"> 947 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L948" class="LineNr"> 948 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> +<span id="L949" class="LineNr"> 949 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L950" class="LineNr"> 950 </span> 68/push <span class="Constant">"F - test-hex-above-f"</span>/imm32 +<span id="L951" class="LineNr"> 951 </span> 68/push 0/imm32/false +<span id="L952" class="LineNr"> 952 </span> 50/push-EAX +<span id="L953" class="LineNr"> 953 </span> <span class="subxS2Comment"># . . call</span> +<span id="L954" class="LineNr"> 954 </span> e8/call check-ints-equal/disp32 +<span id="L955" class="LineNr"> 955 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L956" class="LineNr"> 956 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L957" class="LineNr"> 957 </span> c3/return +<span id="L958" class="LineNr"> 958 </span> +<span id="L959" class="LineNr"> 959 </span><span class="subxFunction">skip-until-newline</span>: <span class="subxComment"># in : (address buffered-file) -> <void></span> +<span id="L960" class="LineNr"> 960 </span> <span class="subxComment"># pseudocode:</span> +<span id="L961" class="LineNr"> 961 </span> <span class="subxComment"># push EAX</span> +<span id="L962" class="LineNr"> 962 </span> <span class="subxComment"># repeatedly:</span> +<span id="L963" class="LineNr"> 963 </span> <span class="subxComment"># EAX = read-byte(in)</span> +<span id="L964" class="LineNr"> 964 </span> <span class="subxComment"># if EAX == 0xffffffff break</span> +<span id="L965" class="LineNr"> 965 </span> <span class="subxComment"># if EAX == 0x0a break</span> +<span id="L966" class="LineNr"> 966 </span> <span class="subxComment"># pop EAX</span> +<span id="L967" class="LineNr"> 967 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L968" class="LineNr"> 968 </span> 55/push-EBP +<span id="L969" class="LineNr"> 969 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L970" class="LineNr"> 970 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L971" class="LineNr"> 971 </span> 50/push-EAX +<span id="L972" class="LineNr"> 972 </span><span class="Constant">$skip-until-newline:loop</span>: +<span id="L973" class="LineNr"> 973 </span> <span class="subxS1Comment"># . EAX = read-byte(in)</span> +<span id="L974" class="LineNr"> 974 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L975" class="LineNr"> 975 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L976" class="LineNr"> 976 </span> <span class="subxS2Comment"># . . call</span> +<span id="L977" class="LineNr"> 977 </span> e8/call read-byte/disp32 +<span id="L978" class="LineNr"> 978 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L979" class="LineNr"> 979 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L980" class="LineNr"> 980 </span> <span class="subxS1Comment"># . if EAX == 0xffffffff break</span> +<span id="L981" class="LineNr"> 981 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xffffffff/imm32 <span class="subxComment"># compare EAX</span> +<span id="L982" class="LineNr"> 982 </span> 74/jump-if-equal $skip-until-newline:end/disp8 +<span id="L983" class="LineNr"> 983 </span><span class="Constant">$aa</span>: +<span id="L984" class="LineNr"> 984 </span> <span class="subxS1Comment"># . if EAX != 0xa/newline loop</span> +<span id="L985" class="LineNr"> 985 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xa/imm32 <span class="subxComment"># compare EAX</span> +<span id="L986" class="LineNr"> 986 </span> 75/jump-if-not-equal $skip-until-newline:loop/disp8 +<span id="L987" class="LineNr"> 987 </span><span class="Constant">$skip-until-newline:end</span>: +<span id="L988" class="LineNr"> 988 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L989" class="LineNr"> 989 </span> 58/pop-to-EAX +<span id="L990" class="LineNr"> 990 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L991" class="LineNr"> 991 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 5/r32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L992" class="LineNr"> 992 </span> 5d/pop-to-EBP +<span id="L993" class="LineNr"> 993 </span> c3/return +<span id="L994" class="LineNr"> 994 </span> +<span id="L995" class="LineNr"> 995 </span><span class="subxTest">test-skip-until-newline</span>: +<span id="L996" class="LineNr"> 996 </span> <span class="subxH1Comment"># - check that the read pointer points after the newline</span> +<span id="L997" class="LineNr"> 997 </span> <span class="subxComment"># setup</span> +<span id="L998" class="LineNr"> 998 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L999" class="LineNr"> 999 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1000" class="LineNr">1000 </span> 68/push _test-stream/imm32 +<span id="L1001" class="LineNr">1001 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1002" class="LineNr">1002 </span> e8/call clear-stream/disp32 +<span id="L1003" class="LineNr">1003 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1004" class="LineNr">1004 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1005" class="LineNr">1005 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L1006" class="LineNr">1006 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1007" class="LineNr">1007 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L1008" class="LineNr">1008 </span> 05/add-to-EAX 4/imm32 +<span id="L1009" class="LineNr">1009 </span> 50/push-EAX +<span id="L1010" class="LineNr">1010 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1011" class="LineNr">1011 </span> e8/call clear-stream/disp32 +<span id="L1012" class="LineNr">1012 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1013" class="LineNr">1013 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1014" class="LineNr">1014 </span> <span class="subxComment"># initialize '_test-stream' to "abc\nde"</span> +<span id="L1015" class="LineNr">1015 </span> <span class="subxS1Comment"># . write(_test-stream, "abc")</span> +<span id="L1016" class="LineNr">1016 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1017" class="LineNr">1017 </span> 68/push <span class="Constant">"abc"</span>/imm32 +<span id="L1018" class="LineNr">1018 </span> 68/push _test-stream/imm32 +<span id="L1019" class="LineNr">1019 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1020" class="LineNr">1020 </span> e8/call write/disp32 +<span id="L1021" class="LineNr">1021 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1022" class="LineNr">1022 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1023" class="LineNr">1023 </span> <span class="subxS1Comment"># . write(_test-stream, Newline)</span> +<span id="L1024" class="LineNr">1024 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1025" class="LineNr">1025 </span> 68/push <span class="SpecialChar">Newline</span>/imm32 +<span id="L1026" class="LineNr">1026 </span> 68/push _test-stream/imm32 +<span id="L1027" class="LineNr">1027 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1028" class="LineNr">1028 </span> e8/call write/disp32 +<span id="L1029" class="LineNr">1029 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1030" class="LineNr">1030 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1031" class="LineNr">1031 </span> <span class="subxS1Comment"># . write(_test-stream, "de")</span> +<span id="L1032" class="LineNr">1032 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1033" class="LineNr">1033 </span> 68/push <span class="Constant">"de"</span>/imm32 +<span id="L1034" class="LineNr">1034 </span> 68/push _test-stream/imm32 +<span id="L1035" class="LineNr">1035 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1036" class="LineNr">1036 </span> e8/call write/disp32 +<span id="L1037" class="LineNr">1037 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1038" class="LineNr">1038 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1039" class="LineNr">1039 </span> <span class="subxComment"># skip-until-newline(_test-buffered-file)</span> +<span id="L1040" class="LineNr">1040 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1041" class="LineNr">1041 </span> 68/push _test-buffered-file/imm32 +<span id="L1042" class="LineNr">1042 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1043" class="LineNr">1043 </span> e8/call skip-until-newline/disp32 +<span id="L1044" class="LineNr">1044 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1045" class="LineNr">1045 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1046" class="LineNr">1046 </span> <span class="subxComment"># check-ints-equal(_test-buffered-file->read, 4, msg)</span> +<span id="L1047" class="LineNr">1047 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L1048" class="LineNr">1048 </span> 68/push <span class="Constant">"F - test-skip-until-newline"</span>/imm32 +<span id="L1049" class="LineNr">1049 </span> 68/push 4/imm32 +<span id="L1050" class="LineNr">1050 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L1051" class="LineNr">1051 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EAX+8)</span> +<span id="L1052" class="LineNr">1052 </span> <span class="subxS2Comment"># . . call</span> +<span id="L1053" class="LineNr">1053 </span> e8/call check-ints-equal/disp32 +<span id="L1054" class="LineNr">1054 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L1055" class="LineNr">1055 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L1056" class="LineNr">1056 </span> <span class="subxS1Comment"># . end</span> +<span id="L1057" class="LineNr">1057 </span> c3/return +<span id="L1058" class="LineNr">1058 </span> +<span id="L1059" class="LineNr">1059 </span>== data +<span id="L1060" class="LineNr">1060 </span> +<span id="L1061" class="LineNr">1061 </span><span class="subxMinorFunction">_test-output-stream</span>: +<span id="L1062" class="LineNr">1062 </span> <span class="subxComment"># current write index</span> +<span id="L1063" class="LineNr">1063 </span> 00 00 00 00 +<span id="L1064" class="LineNr">1064 </span> <span class="subxComment"># current read index</span> +<span id="L1065" class="LineNr">1065 </span> 00 00 00 00 +<span id="L1066" class="LineNr">1066 </span> <span class="subxComment"># length (= 8)</span> +<span id="L1067" class="LineNr">1067 </span> 08 00 00 00 +<span id="L1068" class="LineNr">1068 </span> <span class="subxComment"># data</span> +<span id="L1069" class="LineNr">1069 </span> 00 00 00 00 00 00 00 00 <span class="subxComment"># 8 bytes</span> +<span id="L1070" class="LineNr">1070 </span> +<span id="L1071" class="LineNr">1071 </span><span class="subxMinorFunction">_test-error-stream</span>: +<span id="L1072" class="LineNr">1072 </span> <span class="subxComment"># current write index</span> +<span id="L1073" class="LineNr">1073 </span> 00 00 00 00 +<span id="L1074" class="LineNr">1074 </span> <span class="subxComment"># current read index</span> +<span id="L1075" class="LineNr">1075 </span> 00 00 00 00 +<span id="L1076" class="LineNr">1076 </span> <span class="subxComment"># length (= 8)</span> +<span id="L1077" class="LineNr">1077 </span> 08 00 00 00 +<span id="L1078" class="LineNr">1078 </span> <span class="subxComment"># data</span> +<span id="L1079" class="LineNr">1079 </span> 00 00 00 00 00 00 00 00 <span class="subxComment"># 8 bytes</span> +<span id="L1080" class="LineNr">1080 </span> +<span id="L1081" class="LineNr">1081 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |