diff options
Diffstat (limited to 'html/subx/063print-byte.subx.html')
| -rw-r--r-- | html/subx/063print-byte.subx.html | 171 |
1 files changed, 86 insertions, 85 deletions
diff --git a/html/subx/063print-byte.subx.html b/html/subx/063print-byte.subx.html index de66d1b4..0dfe9269 100644 --- a/html/subx/063print-byte.subx.html +++ b/html/subx/063print-byte.subx.html @@ -119,91 +119,92 @@ if ('onhashchange' in window) { <span id="L54" class="LineNr"> 54 </span> e8/call write-byte/disp32 <span id="L55" class="LineNr"> 55 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L56" class="LineNr"> 56 </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="L57" class="LineNr"> 57 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L58" class="LineNr"> 58 </span> 59/pop-to-ECX -<span id="L59" class="LineNr"> 59 </span> 58/pop-to-EAX -<span id="L60" class="LineNr"> 60 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L61" class="LineNr"> 61 </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="L62" class="LineNr"> 62 </span> 5d/pop-to-EBP -<span id="L63" class="LineNr"> 63 </span> c3/return -<span id="L64" class="LineNr"> 64 </span> -<span id="L65" class="LineNr"> 65 </span><span class="subxComment"># extract lowest 4 bits and convert to 8-byte ascii</span> -<span id="L66" class="LineNr"> 66 </span><span class="subxComment"># return 0xffffffff if more than 4 bits are set</span> -<span id="L67" class="LineNr"> 67 </span><span class="subxFunction">hex-char</span>: <span class="subxComment"># n : num -> char_or_error/EAX</span> -<span id="L68" class="LineNr"> 68 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L69" class="LineNr"> 69 </span> 55/push-EBP -<span id="L70" class="LineNr"> 70 </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="L71" class="LineNr"> 71 </span> <span class="subxComment"># EAX = n</span> -<span id="L72" class="LineNr"> 72 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 0/r32/EAX 8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+8) to EAX</span> -<span id="L73" class="LineNr"> 73 </span> <span class="subxComment"># if it's <= 9 add '0' to it</span> -<span id="L74" class="LineNr"> 74 </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="L75" class="LineNr"> 75 </span> 7f/jump-if-greater $hex-char:check2/disp8 -<span id="L76" class="LineNr"> 76 </span> 05/add-to-EAX 0x30/imm32/'0' -<span id="L77" class="LineNr"> 77 </span> eb/jump $hex-char:end/disp8 -<span id="L78" class="LineNr"> 78 </span><span class="Constant">$hex-char:check2</span>: -<span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># else if it's <= 15 add ('a' - 10) to it</span> -<span id="L80" class="LineNr"> 80 </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> 0xf/imm32 <span class="subxComment"># compare EAX</span> -<span id="L81" class="LineNr"> 81 </span> 7f/jump-if-greater $hex-char:error/disp8 -<span id="L82" class="LineNr"> 82 </span> 05/add-to-EAX 0x57/imm32 <span class="subxComment"># 'a' - 10</span> -<span id="L83" class="LineNr"> 83 </span> eb/jump $hex-char:end/disp8 -<span id="L84" class="LineNr"> 84 </span><span class="Constant">$hex-char:error</span>: -<span id="L85" class="LineNr"> 85 </span> <span class="subxComment"># otherwise return 0xffffffff</span> -<span id="L86" class="LineNr"> 86 </span> b8/copy-to-EAX 0xffffffff/imm32 -<span id="L87" class="LineNr"> 87 </span><span class="Constant">$hex-char:end</span>: -<span id="L88" class="LineNr"> 88 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L89" class="LineNr"> 89 </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="L90" class="LineNr"> 90 </span> 5d/pop-to-EBP -<span id="L91" class="LineNr"> 91 </span> c3/return -<span id="L92" class="LineNr"> 92 </span> -<span id="L93" class="LineNr"> 93 </span><span class="subxTest">test-print-byte</span>: -<span id="L94" class="LineNr"> 94 </span> <span class="subxH1Comment"># - check that print-byte prints the hex textual representation</span> -<span id="L95" class="LineNr"> 95 </span> <span class="subxComment"># setup</span> -<span id="L96" class="LineNr"> 96 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> -<span id="L97" class="LineNr"> 97 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L98" class="LineNr"> 98 </span> 68/push _test-stream/imm32 -<span id="L99" class="LineNr"> 99 </span> <span class="subxS2Comment"># . . call</span> -<span id="L100" class="LineNr">100 </span> e8/call clear-stream/disp32 -<span id="L101" class="LineNr">101 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L102" class="LineNr">102 </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="L103" class="LineNr">103 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> -<span id="L104" class="LineNr">104 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L105" class="LineNr">105 </span> b8/copy-to-EAX _test-buffered-file/imm32 -<span id="L106" class="LineNr">106 </span> 05/add-to-EAX 4/imm32 -<span id="L107" class="LineNr">107 </span> 50/push-EAX -<span id="L108" class="LineNr">108 </span> <span class="subxS2Comment"># . . call</span> -<span id="L109" class="LineNr">109 </span> e8/call clear-stream/disp32 -<span id="L110" class="LineNr">110 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L111" class="LineNr">111 </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="L112" class="LineNr">112 </span> <span class="subxComment"># print-byte(_test-buffered-file, 0xa) # exercises digit, non-digit as well as leading zero</span> -<span id="L113" class="LineNr">113 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L114" class="LineNr">114 </span> 68/push 0xa/imm32 -<span id="L115" class="LineNr">115 </span> 68/push _test-buffered-file/imm32 -<span id="L116" class="LineNr">116 </span> <span class="subxS2Comment"># . . call</span> -<span id="L117" class="LineNr">117 </span> e8/call print-byte/disp32 -<span id="L118" class="LineNr">118 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L119" class="LineNr">119 </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="L120" class="LineNr">120 </span> <span class="subxComment"># flush(_test-buffered-file)</span> -<span id="L121" class="LineNr">121 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L122" class="LineNr">122 </span> 68/push _test-buffered-file/imm32 -<span id="L123" class="LineNr">123 </span> <span class="subxS2Comment"># . . call</span> -<span id="L124" class="LineNr">124 </span> e8/call flush/disp32 -<span id="L125" class="LineNr">125 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L126" class="LineNr">126 </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="L127" class="LineNr">127 </span> <span class="subxComment"># check-ints-equal(*_test-stream->data, '0a', msg)</span> -<span id="L128" class="LineNr">128 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L129" class="LineNr">129 </span> 68/push <span class="Constant">"F - test-print-byte"</span>/imm32 -<span id="L130" class="LineNr">130 </span> 68/push 0x6130/imm32/0a -<span id="L131" class="LineNr">131 </span> <span class="subxS2Comment"># . . push *_test-stream->data</span> -<span id="L132" class="LineNr">132 </span> b8/copy-to-EAX _test-stream/imm32 -<span id="L133" class="LineNr">133 </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> 0xc/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EAX+12)</span> -<span id="L134" class="LineNr">134 </span> <span class="subxS2Comment"># . . call</span> -<span id="L135" class="LineNr">135 </span> e8/call check-ints-equal/disp32 -<span id="L136" class="LineNr">136 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L137" class="LineNr">137 </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="L138" class="LineNr">138 </span> <span class="subxS1Comment"># . end</span> -<span id="L139" class="LineNr">139 </span> c3/return -<span id="L140" class="LineNr">140 </span> -<span id="L141" class="LineNr">141 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +<span id="L57" class="LineNr"> 57 </span><span class="Constant">$print-byte:end</span>: +<span id="L58" class="LineNr"> 58 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L59" class="LineNr"> 59 </span> 59/pop-to-ECX +<span id="L60" class="LineNr"> 60 </span> 58/pop-to-EAX +<span id="L61" class="LineNr"> 61 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L62" class="LineNr"> 62 </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="L63" class="LineNr"> 63 </span> 5d/pop-to-EBP +<span id="L64" class="LineNr"> 64 </span> c3/return +<span id="L65" class="LineNr"> 65 </span> +<span id="L66" class="LineNr"> 66 </span><span class="subxComment"># extract lowest 4 bits and convert to 8-byte ascii</span> +<span id="L67" class="LineNr"> 67 </span><span class="subxComment"># return 0xffffffff if more than 4 bits are set</span> +<span id="L68" class="LineNr"> 68 </span><span class="subxFunction">hex-char</span>: <span class="subxComment"># n : num -> char_or_error/EAX</span> +<span id="L69" class="LineNr"> 69 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L70" class="LineNr"> 70 </span> 55/push-EBP +<span id="L71" class="LineNr"> 71 </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="L72" class="LineNr"> 72 </span> <span class="subxComment"># EAX = n</span> +<span id="L73" class="LineNr"> 73 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> 0/r32/EAX 8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(EBP+8) to EAX</span> +<span id="L74" class="LineNr"> 74 </span> <span class="subxComment"># if it's <= 9 add '0' to it</span> +<span id="L75" class="LineNr"> 75 </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="L76" class="LineNr"> 76 </span> 7f/jump-if-greater $hex-char:check2/disp8 +<span id="L77" class="LineNr"> 77 </span> 05/add-to-EAX 0x30/imm32/'0' +<span id="L78" class="LineNr"> 78 </span> eb/jump $hex-char:end/disp8 +<span id="L79" class="LineNr"> 79 </span><span class="Constant">$hex-char:check2</span>: +<span id="L80" class="LineNr"> 80 </span> <span class="subxComment"># else if it's <= 15 add ('a' - 10) to it</span> +<span id="L81" class="LineNr"> 81 </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> 0xf/imm32 <span class="subxComment"># compare EAX</span> +<span id="L82" class="LineNr"> 82 </span> 7f/jump-if-greater $hex-char:error/disp8 +<span id="L83" class="LineNr"> 83 </span> 05/add-to-EAX 0x57/imm32 <span class="subxComment"># 'a' - 10</span> +<span id="L84" class="LineNr"> 84 </span> eb/jump $hex-char:end/disp8 +<span id="L85" class="LineNr"> 85 </span><span class="Constant">$hex-char:error</span>: +<span id="L86" class="LineNr"> 86 </span> <span class="subxComment"># otherwise return 0xffffffff</span> +<span id="L87" class="LineNr"> 87 </span> b8/copy-to-EAX 0xffffffff/imm32 +<span id="L88" class="LineNr"> 88 </span><span class="Constant">$hex-char:end</span>: +<span id="L89" class="LineNr"> 89 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L90" class="LineNr"> 90 </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="L91" class="LineNr"> 91 </span> 5d/pop-to-EBP +<span id="L92" class="LineNr"> 92 </span> c3/return +<span id="L93" class="LineNr"> 93 </span> +<span id="L94" class="LineNr"> 94 </span><span class="subxTest">test-print-byte</span>: +<span id="L95" class="LineNr"> 95 </span> <span class="subxH1Comment"># - check that print-byte prints the hex textual representation</span> +<span id="L96" class="LineNr"> 96 </span> <span class="subxComment"># setup</span> +<span id="L97" class="LineNr"> 97 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> +<span id="L98" class="LineNr"> 98 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L99" class="LineNr"> 99 </span> 68/push _test-stream/imm32 +<span id="L100" class="LineNr">100 </span> <span class="subxS2Comment"># . . call</span> +<span id="L101" class="LineNr">101 </span> e8/call clear-stream/disp32 +<span id="L102" class="LineNr">102 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L103" class="LineNr">103 </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="L104" class="LineNr">104 </span> <span class="subxS1Comment"># . clear-stream(_test-buffered-file+4)</span> +<span id="L105" class="LineNr">105 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L106" class="LineNr">106 </span> b8/copy-to-EAX _test-buffered-file/imm32 +<span id="L107" class="LineNr">107 </span> 05/add-to-EAX 4/imm32 +<span id="L108" class="LineNr">108 </span> 50/push-EAX +<span id="L109" class="LineNr">109 </span> <span class="subxS2Comment"># . . call</span> +<span id="L110" class="LineNr">110 </span> e8/call clear-stream/disp32 +<span id="L111" class="LineNr">111 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L112" class="LineNr">112 </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="L113" class="LineNr">113 </span> <span class="subxComment"># print-byte(_test-buffered-file, 0xa) # exercises digit, non-digit as well as leading zero</span> +<span id="L114" class="LineNr">114 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L115" class="LineNr">115 </span> 68/push 0xa/imm32 +<span id="L116" class="LineNr">116 </span> 68/push _test-buffered-file/imm32 +<span id="L117" class="LineNr">117 </span> <span class="subxS2Comment"># . . call</span> +<span id="L118" class="LineNr">118 </span> e8/call print-byte/disp32 +<span id="L119" class="LineNr">119 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L120" class="LineNr">120 </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="L121" class="LineNr">121 </span> <span class="subxComment"># flush(_test-buffered-file)</span> +<span id="L122" class="LineNr">122 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L123" class="LineNr">123 </span> 68/push _test-buffered-file/imm32 +<span id="L124" class="LineNr">124 </span> <span class="subxS2Comment"># . . call</span> +<span id="L125" class="LineNr">125 </span> e8/call flush/disp32 +<span id="L126" class="LineNr">126 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L127" class="LineNr">127 </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="L128" class="LineNr">128 </span> <span class="subxComment"># check-ints-equal(*_test-stream->data, '0a', msg)</span> +<span id="L129" class="LineNr">129 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L130" class="LineNr">130 </span> 68/push <span class="Constant">"F - test-print-byte"</span>/imm32 +<span id="L131" class="LineNr">131 </span> 68/push 0x6130/imm32/0a +<span id="L132" class="LineNr">132 </span> <span class="subxS2Comment"># . . push *_test-stream->data</span> +<span id="L133" class="LineNr">133 </span> b8/copy-to-EAX _test-stream/imm32 +<span id="L134" class="LineNr">134 </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> 0xc/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EAX+12)</span> +<span id="L135" class="LineNr">135 </span> <span class="subxS2Comment"># . . call</span> +<span id="L136" class="LineNr">136 </span> e8/call check-ints-equal/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> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L139" class="LineNr">139 </span> <span class="subxS1Comment"># . end</span> +<span id="L140" class="LineNr">140 </span> c3/return +<span id="L141" class="LineNr">141 </span> +<span id="L142" class="LineNr">142 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |