diff options
Diffstat (limited to 'html/subx/apps/crenshaw2-1.subx.html')
| -rw-r--r-- | html/subx/apps/crenshaw2-1.subx.html | 171 |
1 files changed, 45 insertions, 126 deletions
diff --git a/html/subx/apps/crenshaw2-1.subx.html b/html/subx/apps/crenshaw2-1.subx.html index c01985bb..8ac601ec 100644 --- a/html/subx/apps/crenshaw2-1.subx.html +++ b/html/subx/apps/crenshaw2-1.subx.html @@ -17,7 +17,6 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } -.Folded { color: #a8a8a8; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -58,8 +57,8 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## port of <a href="https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas">https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas</a></span> <span id="L2" class="LineNr"> 2 </span><span class="Comment"># corresponds to the section "single digits" in <a href="https://compilers.iecc.com/crenshaw/tutor2.txt">https://compilers.iecc.com/crenshaw/tutor2.txt</a></span> <span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate apps/crenshaw2.1.subx crenshaw 2.1</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate *.subx apps/crenshaw2.1.subx -o crenshaw 2.1</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ echo '3' |subx run apps/crenshaw2.1 |xxd -</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected output:</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># TODO</span> @@ -82,13 +81,13 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr"> 25 </span> <span class="Comment"># call</span> <span id="L26" class="LineNr"> 26 </span> e8/call abort/disp32 <span id="L27" class="LineNr"> 27 </span> <span class="Comment"># discard arg</span> -<span id="L28" class="LineNr"> 28 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L28" class="LineNr"> 28 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L29" class="LineNr"> 29 </span> <span class="Comment"># exit(0)</span> -<span id="L30" class="LineNr"> 30 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EBX</span> -<span id="L31" class="LineNr"> 31 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L30" class="LineNr"> 30 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EBX</span> +<span id="L31" class="LineNr"> 31 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L32" class="LineNr"> 32 </span> cd/syscall 0x80/imm8 <span id="L33" class="LineNr"> 33 </span> -<span id="L34" class="LineNr"> 34 </span><span class="SalientComment">## compiler helpers</span> +<span id="L34" class="LineNr"> 34 </span><span class="SalientComment">## helpers</span> <span id="L35" class="LineNr"> 35 </span> <span id="L36" class="LineNr"> 36 </span><span class="Comment"># print error message and exit</span> <span id="L37" class="LineNr"> 37 </span><span class="Comment"># really maps to the 'Expected' function in Crenshaw</span> @@ -99,10 +98,10 @@ if ('onhashchange' in window) { <span id="L42" class="LineNr"> 42 </span> <span class="Comment"># call</span> <span id="L43" class="LineNr"> 43 </span> e8/call error/disp32 <span id="L44" class="LineNr"> 44 </span> <span class="Comment"># discard arg</span> -<span id="L45" class="LineNr"> 45 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L45" class="LineNr"> 45 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L46" class="LineNr"> 46 </span> <span class="Comment"># exit(1)</span> -<span id="L47" class="LineNr"> 47 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L48" class="LineNr"> 48 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L47" class="LineNr"> 47 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> +<span id="L48" class="LineNr"> 48 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L49" class="LineNr"> 49 </span> cd/syscall 0x80/imm8 <span id="L50" class="LineNr"> 50 </span> <span id="L51" class="LineNr"> 51 </span><span class="Comment"># print out "Error: #{s} expected\n" to stderr</span> @@ -113,143 +112,63 @@ if ('onhashchange' in window) { <span id="L56" class="LineNr"> 56 </span> <span class="Comment"># call</span> <span id="L57" class="LineNr"> 57 </span> e8/call write_stderr/disp32 <span id="L58" class="LineNr"> 58 </span> <span class="Comment"># discard arg</span> -<span id="L59" class="LineNr"> 59 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L59" class="LineNr"> 59 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L60" class="LineNr"> 60 </span> <span class="Comment"># write_stderr(s)</span> <span id="L61" class="LineNr"> 61 </span> <span class="Comment"># push args</span> <span id="L62" class="LineNr"> 62 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(ESP+4)</span> <span id="L63" class="LineNr"> 63 </span> <span class="Comment"># call</span> <span id="L64" class="LineNr"> 64 </span> e8/call write_stderr/disp32 <span id="L65" class="LineNr"> 65 </span> <span class="Comment"># discard arg</span> -<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L67" class="LineNr"> 67 </span> <span class="Comment"># write_stderr(" expected")</span> <span id="L68" class="LineNr"> 68 </span> <span class="Comment"># push args</span> <span id="L69" class="LineNr"> 69 </span> 68/push " expected"/imm32 <span id="L70" class="LineNr"> 70 </span> <span class="Comment"># call</span> <span id="L71" class="LineNr"> 71 </span> e8/call write_stderr/disp32 <span id="L72" class="LineNr"> 72 </span> <span class="Comment"># discard arg</span> -<span id="L73" class="LineNr"> 73 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L73" class="LineNr"> 73 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L74" class="LineNr"> 74 </span> <span class="Comment"># write_stderr("\n")</span> <span id="L75" class="LineNr"> 75 </span> <span class="Comment"># push args</span> <span id="L76" class="LineNr"> 76 </span> 68/push Newline/imm32 <span id="L77" class="LineNr"> 77 </span> <span class="Comment"># call</span> <span id="L78" class="LineNr"> 78 </span> e8/call write_stderr/disp32 <span id="L79" class="LineNr"> 79 </span> <span class="Comment"># discard arg</span> -<span id="L80" class="LineNr"> 80 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L80" class="LineNr"> 80 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L81" class="LineNr"> 81 </span> <span class="Comment"># end</span> <span id="L82" class="LineNr"> 82 </span> c3/return <span id="L83" class="LineNr"> 83 </span> -<span id="L84" class="LineNr"> 84 </span><span class="SalientComment">## helpers</span> -<span id="L85" class="LineNr"> 85 </span> -<span id="L86" class="LineNr"> 86 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> -<span id="L87" class="LineNr"> 87 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> -<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> -<span id="L89" class="LineNr"> 89 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EAX</span> -<span id="L90" class="LineNr"> 90 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EBX</span> -<span id="L91" class="LineNr"> 91 </span> <span class="Comment"># if EAX == b/EBX</span> -<span id="L92" class="LineNr"> 92 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> -<span id="L93" class="LineNr"> 93 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 -<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># print('.')</span> -<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># push args</span> -<span id="L96" class="LineNr"> 96 </span> 68/push "."/imm32 -<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># call</span> -<span id="L98" class="LineNr"> 98 </span> e8/call write_stderr/disp32 -<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># discard arg</span> -<span id="L100" class="LineNr">100 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L101" class="LineNr">101 </span> <span class="Comment"># return</span> -<span id="L102" class="LineNr">102 </span> c3/return -<span id="L103" class="LineNr">103 </span> <span class="Comment"># else:</span> -<span id="L104" class="LineNr">104 </span>$check_ints_equal:else: -<span id="L105" class="LineNr">105 </span> <span class="Comment"># copy msg into ECX</span> -<span id="L106" class="LineNr">106 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> -<span id="L107" class="LineNr">107 </span> <span class="Comment"># print(ECX)</span> -<span id="L108" class="LineNr">108 </span> <span class="Comment"># push args</span> -<span id="L109" class="LineNr">109 </span> 51/push-ECX -<span id="L110" class="LineNr">110 </span> <span class="Comment"># call</span> -<span id="L111" class="LineNr">111 </span> e8/call write_stderr/disp32 -<span id="L112" class="LineNr">112 </span> <span class="Comment"># discard arg</span> -<span id="L113" class="LineNr">113 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L114" class="LineNr">114 </span> <span class="Comment"># print newline</span> -<span id="L115" class="LineNr">115 </span> <span class="Comment"># push args</span> -<span id="L116" class="LineNr">116 </span> 68/push Newline/imm32 -<span id="L117" class="LineNr">117 </span> <span class="Comment"># call</span> -<span id="L118" class="LineNr">118 </span> e8/call write_stderr/disp32 -<span id="L119" class="LineNr">119 </span> <span class="Comment"># discard arg</span> -<span id="L120" class="LineNr">120 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L121" class="LineNr">121 </span> <span class="Comment"># end</span> -<span id="L122" class="LineNr">122 </span> c3/return -<span id="L123" class="LineNr">123 </span> -<span id="L124" class="LineNr">124 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> -<span id="L125" class="LineNr">125 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L126" class="LineNr">126 </span>argv_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> -<span id="L127" class="Folded">127 </span><span class="Folded">+-- 58 lines: # --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L185" class="Folded">185 </span><span class="Folded">+--134 lines: # tests for argv_equal -----------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L319" class="LineNr">319 </span> -<span id="L320" class="LineNr">320 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L321" class="LineNr">321 </span> <span class="Comment"># save registers</span> -<span id="L322" class="LineNr">322 </span> 50/push-EAX -<span id="L323" class="LineNr">323 </span> 51/push-ECX -<span id="L324" class="LineNr">324 </span> 52/push-EDX -<span id="L325" class="LineNr">325 </span> 53/push-EBX -<span id="L326" class="LineNr">326 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> -<span id="L327" class="LineNr">327 </span> <span class="Comment"># fd = 2 (stderr)</span> -<span id="L328" class="LineNr">328 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy 2 to EBX</span> -<span id="L329" class="LineNr">329 </span> <span class="Comment"># x = s+4</span> -<span id="L330" class="LineNr">330 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L331" class="LineNr">331 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L332" class="LineNr">332 </span> <span class="Comment"># size = *s</span> -<span id="L333" class="LineNr">333 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L334" class="LineNr">334 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L335" class="LineNr">335 </span> <span class="Comment"># call write()</span> -<span id="L336" class="LineNr">336 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L337" class="LineNr">337 </span> cd/syscall 0x80/imm8 -<span id="L338" class="LineNr">338 </span> <span class="Comment"># restore registers</span> -<span id="L339" class="LineNr">339 </span> 5b/pop-EBX -<span id="L340" class="LineNr">340 </span> 5a/pop-EDX -<span id="L341" class="LineNr">341 </span> 59/pop-ECX -<span id="L342" class="LineNr">342 </span> 58/pop-EAX -<span id="L343" class="LineNr">343 </span> <span class="Comment"># end</span> -<span id="L344" class="LineNr">344 </span> c3/return -<span id="L345" class="LineNr">345 </span> -<span id="L346" class="LineNr">346 </span>write_stdout: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L347" class="LineNr">347 </span> <span class="Comment"># save registers</span> -<span id="L348" class="LineNr">348 </span> 50/push-EAX -<span id="L349" class="LineNr">349 </span> 51/push-ECX -<span id="L350" class="LineNr">350 </span> 52/push-EDX -<span id="L351" class="LineNr">351 </span> 53/push-EBX -<span id="L352" class="LineNr">352 </span> <span class="Comment"># write(1/stdout, (data) s+4, (size) *s)</span> -<span id="L353" class="LineNr">353 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L354" class="LineNr">354 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L355" class="LineNr">355 </span> <span class="Comment"># x = s+4</span> -<span id="L356" class="LineNr">356 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L357" class="LineNr">357 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L358" class="LineNr">358 </span> <span class="Comment"># size = *s</span> -<span id="L359" class="LineNr">359 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L360" class="LineNr">360 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L361" class="LineNr">361 </span> <span class="Comment"># call write()</span> -<span id="L362" class="LineNr">362 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L363" class="LineNr">363 </span> cd/syscall 0x80/imm8 -<span id="L364" class="LineNr">364 </span> <span class="Comment"># restore registers</span> -<span id="L365" class="LineNr">365 </span> 5b/pop-EBX -<span id="L366" class="LineNr">366 </span> 5a/pop-EDX -<span id="L367" class="LineNr">367 </span> 59/pop-ECX -<span id="L368" class="LineNr">368 </span> 58/pop-EAX -<span id="L369" class="LineNr">369 </span> <span class="Comment"># end</span> -<span id="L370" class="LineNr">370 </span> c3/return -<span id="L371" class="LineNr">371 </span> -<span id="L372" class="LineNr">372 </span>== data -<span id="L373" class="LineNr">373 </span>Newline: -<span id="L374" class="LineNr">374 </span> <span class="Comment"># size</span> -<span id="L375" class="LineNr">375 </span> 01 00 00 00 -<span id="L376" class="LineNr">376 </span> <span class="Comment"># data</span> -<span id="L377" class="LineNr">377 </span> 0a/newline -<span id="L378" class="LineNr">378 </span> -<span id="L379" class="LineNr">379 </span><span class="Comment"># for argv_equal tests</span> -<span id="L380" class="LineNr">380 </span>Null_argv: -<span id="L381" class="LineNr">381 </span> 00/null -<span id="L382" class="LineNr">382 </span>Abc_argv: -<span id="L383" class="LineNr">383 </span> 41/A 62/b 63/c 00/null -<span id="L384" class="LineNr">384 </span> -<span id="L385" class="LineNr">385 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> +<span id="L84" class="LineNr"> 84 </span>write_stdout: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># prolog</span> +<span id="L86" class="LineNr"> 86 </span> 55/push-EBP +<span id="L87" class="LineNr"> 87 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># save registers</span> +<span id="L89" class="LineNr"> 89 </span> 50/push-EAX +<span id="L90" class="LineNr"> 90 </span> 51/push-ECX +<span id="L91" class="LineNr"> 91 </span> 52/push-EDX +<span id="L92" class="LineNr"> 92 </span> 53/push-EBX +<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># write(1/stdout, (data) s+4, (size) *s)</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L95" class="LineNr"> 95 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># x = s+4</span> +<span id="L97" class="LineNr"> 97 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> +<span id="L98" class="LineNr"> 98 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># size = *s</span> +<span id="L100" class="LineNr">100 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> +<span id="L101" class="LineNr">101 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L102" class="LineNr">102 </span> <span class="Comment"># call write()</span> +<span id="L103" class="LineNr">103 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> +<span id="L104" class="LineNr">104 </span> cd/syscall 0x80/imm8 +<span id="L105" class="LineNr">105 </span> <span class="Comment"># restore registers</span> +<span id="L106" class="LineNr">106 </span> 5b/pop-to-EBX +<span id="L107" class="LineNr">107 </span> 5a/pop-to-EDX +<span id="L108" class="LineNr">108 </span> 59/pop-to-ECX +<span id="L109" class="LineNr">109 </span> 58/pop-to-EAX +<span id="L110" class="LineNr">110 </span> <span class="Comment"># end</span> +<span id="L111" class="LineNr">111 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L112" class="LineNr">112 </span> 5d/pop-to-EBP +<span id="L113" class="LineNr">113 </span> c3/return +<span id="L114" class="LineNr">114 </span> +<span id="L115" class="LineNr">115 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> </pre> </body> </html> |