diff options
Diffstat (limited to 'html/apps/braces.subx.html')
| -rw-r--r-- | html/apps/braces.subx.html | 303 |
1 files changed, 14 insertions, 289 deletions
diff --git a/html/apps/braces.subx.html b/html/apps/braces.subx.html index 34220c66..7a5d5d7c 100644 --- a/html/apps/braces.subx.html +++ b/html/apps/braces.subx.html @@ -22,7 +22,6 @@ a { color:inherit; } .Constant { color: #008787; } .Folded { color: #080808; background-color: #949494; } .subxTest { color: #5f8700; } -.subxS2Comment { color: #8a8a8a; } --> </style> @@ -111,7 +110,7 @@ if ('onhashchange' in window) { <span id="L51" class="LineNr"> 51 </span>== code <span id="L52" class="LineNr"> 52 </span> <span id="L53" class="LineNr"> 53 </span><span class="SpecialChar">Entry</span>: <span class="subxComment"># run tests if necessary, a REPL if not</span> -<span id="L54" class="LineNr"> 54 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L54" class="LineNr"> 54 </span> <span class="subxS1Comment"># . prologue</span> <span id="L55" class="LineNr"> 55 </span> 89/<- %ebp 4/r32/esp <span id="L56" class="LineNr"> 56 </span> <span class="subxComment"># initialize heap</span> <span id="L57" class="LineNr"> 57 </span> (<a href='../053new-segment.subx.html#L41'>new-segment</a> <span class="SpecialChar"><a href='../069allocate.subx.html#L29'>Heap-size</a></span> <span class="SpecialChar"><a href='../069allocate.subx.html#L22'>Heap</a></span>) @@ -135,7 +134,7 @@ if ('onhashchange' in window) { <span id="L75" class="LineNr"> 75 </span> b8/copy-to-eax 1/imm32/exit <span id="L76" class="LineNr"> 76 </span> cd/syscall 0x80/imm8 <span id="L77" class="LineNr"> 77 </span> -<span id="L78" class="LineNr"> 78 </span><span class="subxFunction">subx-braces</span>: <span class="subxComment"># in : (address buffered-file), out : (address buffered-file) -> <void></span> +<span id="L78" class="LineNr"> 78 </span><span class="subxFunction">subx-braces</span>: <span class="subxComment"># in : (address buffered-file), out : (address buffered-file)</span> <span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># pseudocode:</span> <span id="L80" class="LineNr"> 80 </span> <span class="subxComment"># var line = new-stream(512, 1)</span> <span id="L81" class="LineNr"> 81 </span> <span class="subxComment"># var label-stack : (address stack) = new-stack(32*4) # at most 32 levels of nesting</span> @@ -171,7 +170,7 @@ if ('onhashchange' in window) { <span id="L111" class="LineNr">111 </span> <span class="subxComment"># print(out, word-slice " ")</span> <span id="L112" class="LineNr">112 </span> <span class="subxComment"># print(out, "\n")</span> <span id="L113" class="LineNr">113 </span> <span class="subxComment"># flush(out)</span> -<span id="L114" class="LineNr">114 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L114" class="LineNr">114 </span> <span class="subxS1Comment"># . prologue</span> <span id="L115" class="LineNr">115 </span> 55/push-ebp <span id="L116" class="LineNr">116 </span> 89/<- %ebp 4/r32/esp <span id="L117" class="LineNr">117 </span> <span class="subxS1Comment"># . save registers</span> @@ -223,7 +222,7 @@ if ('onhashchange' in window) { <span id="L163" class="LineNr">163 </span> (<a href='../066print-int.subx.html#L267'>print-int32-buffered</a> *(ebp+0xc) %ebx) <span id="L164" class="LineNr">164 </span> (<a href='../065write-buffered.subx.html#L8'>write-buffered</a> *(ebp+0xc) <span class="Constant">":"</span>) <span id="L165" class="LineNr">165 </span> <span class="subxComment"># push(label-stack, next-label-id)</span> -<span id="L166" class="LineNr">166 </span> (<a href='braces.subx.html#L445'>push</a> %edx %ebx) +<span id="L166" class="LineNr">166 </span> (<a href='../095stack.subx.html#L110'>push</a> %edx %ebx) <span id="L167" class="LineNr">167 </span> <span class="subxComment"># ++next-label-id</span> <span id="L168" class="LineNr">168 </span> ff 0/subop/increment %ebx <span id="L169" class="LineNr">169 </span> <span class="subxComment"># continue</span> @@ -234,7 +233,7 @@ if ('onhashchange' in window) { <span id="L174" class="LineNr">174 </span> 0f 85/jump-if-equal $subx-braces:word-loop/disp32 <span id="L175" class="LineNr">175 </span><span class="Constant">$subx-braces:emit-curly-closed</span>: <span id="L176" class="LineNr">176 </span> <span class="subxComment"># eax = pop(label-stack)</span> -<span id="L177" class="LineNr">177 </span> (<a href='braces.subx.html#L521'>pop</a> %edx) +<span id="L177" class="LineNr">177 </span> (<a href='../095stack.subx.html#L230'>pop</a> %edx) <span id="L178" class="LineNr">178 </span> <span class="subxComment"># print(out, "_break" eax ":")</span> <span id="L179" class="LineNr">179 </span> (<a href='../065write-buffered.subx.html#L8'>write-buffered</a> *(ebp+0xc) <span class="Constant">"_break"</span>) <span id="L180" class="LineNr">180 </span> (<a href='../066print-int.subx.html#L267'>print-int32-buffered</a> *(ebp+0xc) %eax) @@ -265,7 +264,7 @@ if ('onhashchange' in window) { <span id="L205" class="LineNr">205 </span> 3d/compare-eax-and 0/imm32 <span id="L206" class="LineNr">206 </span> 74/jump-if-equal $subx-braces:check-for-loop/disp8 <span id="L207" class="LineNr">207 </span><span class="Constant">$subx-braces:emit-break</span>: -<span id="L208" class="LineNr">208 </span> (<a href='braces.subx.html#L591'>top</a> %edx) +<span id="L208" class="LineNr">208 </span> (<a href='../095stack.subx.html#L334'>top</a> %edx) <span id="L209" class="LineNr">209 </span> <span class="subxComment"># print(out, "_break" eax)</span> <span id="L210" class="LineNr">210 </span> (<a href='../065write-buffered.subx.html#L8'>write-buffered</a> *(ebp+0xc) <span class="Constant">"_break"</span>) <span id="L211" class="LineNr">211 </span> (<a href='../066print-int.subx.html#L267'>print-int32-buffered</a> *(ebp+0xc) %eax) @@ -281,7 +280,7 @@ if ('onhashchange' in window) { <span id="L221" class="LineNr">221 </span> 3d/compare-eax-and 0/imm32 <span id="L222" class="LineNr">222 </span> 74/jump-if-equal $subx-braces:emit-word-slice/disp8 <span id="L223" class="LineNr">223 </span><span class="Constant">$subx-braces:emit-loop</span>: -<span id="L224" class="LineNr">224 </span> (<a href='braces.subx.html#L591'>top</a> %edx) +<span id="L224" class="LineNr">224 </span> (<a href='../095stack.subx.html#L334'>top</a> %edx) <span id="L225" class="LineNr">225 </span> <span class="subxComment"># print(out, "_loop" eax)</span> <span id="L226" class="LineNr">226 </span> (<a href='../065write-buffered.subx.html#L8'>write-buffered</a> *(ebp+0xc) <span class="Constant">"_loop"</span>) <span id="L227" class="LineNr">227 </span> (<a href='../066print-int.subx.html#L267'>print-int32-buffered</a> *(ebp+0xc) %eax) @@ -311,13 +310,13 @@ if ('onhashchange' in window) { <span id="L251" class="LineNr">251 </span> 5a/pop-to-edx <span id="L252" class="LineNr">252 </span> 59/pop-to-ecx <span id="L253" class="LineNr">253 </span> 58/pop-to-eax -<span id="L254" class="LineNr">254 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L254" class="LineNr">254 </span> <span class="subxS1Comment"># . epilogue</span> <span id="L255" class="LineNr">255 </span> 89/<- %esp 5/r32/ebp <span id="L256" class="LineNr">256 </span> 5d/pop-to-ebp <span id="L257" class="LineNr">257 </span> c3/return <span id="L258" class="LineNr">258 </span> <span id="L259" class="LineNr">259 </span><span class="subxTest">test-subx-braces-passes-most-words-through</span>: -<span id="L260" class="LineNr">260 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L260" class="LineNr">260 </span> <span class="subxS1Comment"># . prologue</span> <span id="L261" class="LineNr">261 </span> 55/push-ebp <span id="L262" class="LineNr">262 </span> 89/<- %ebp 4/r32/esp <span id="L263" class="LineNr">263 </span> <span class="subxComment"># setup</span> @@ -338,7 +337,7 @@ if ('onhashchange' in window) { <span id="L278" class="LineNr">278 </span> (<a href='../064write-byte.subx.html#L79'>flush</a> _test-output-buffered-file) <span id="L279" class="Folded">279 </span><span class="Folded">+-- 5 lines: #? # dump _test-output-stream --------------------------------------------------------------------------------------------------------------</span> <span id="L284" class="LineNr">284 </span> (<a href='../058stream-equal.subx.html#L193'>check-stream-equal</a> <a href='../064write-byte.subx.html#L290'>_test-output-stream</a> <span class="Constant">"== abcd 0x1 \n"</span> <span class="Constant">"F - test-subx-braces-passes-most-words-through"</span>) -<span id="L285" class="LineNr">285 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L285" class="LineNr">285 </span> <span class="subxS1Comment"># . epilogue</span> <span id="L286" class="LineNr">286 </span> 89/<- %esp 5/r32/ebp <span id="L287" class="LineNr">287 </span> 5d/pop-to-ebp <span id="L288" class="LineNr">288 </span> c3/return @@ -356,7 +355,7 @@ if ('onhashchange' in window) { <span id="L300" class="LineNr">300 </span> <span class="subxComment"># cd _loop1/imm32</span> <span id="L301" class="LineNr">301 </span> <span class="subxComment"># _break1:</span> <span id="L302" class="LineNr">302 </span> <span class="subxComment">#</span> -<span id="L303" class="LineNr">303 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L303" class="LineNr">303 </span> <span class="subxS1Comment"># . prologue</span> <span id="L304" class="LineNr">304 </span> 55/push-ebp <span id="L305" class="LineNr">305 </span> 89/<- %ebp 4/r32/esp <span id="L306" class="LineNr">306 </span> <span class="subxComment"># setup</span> @@ -377,7 +376,7 @@ if ('onhashchange' in window) { <span id="L321" class="LineNr">321 </span> (<a href='../064write-byte.subx.html#L79'>flush</a> _test-output-buffered-file) <span id="L322" class="Folded">322 </span><span class="Folded">+-- 5 lines: #? # dump _test-output-stream --------------------------------------------------------------------------------------------------------------</span> <span id="L327" class="LineNr">327 </span> (<a href='../058stream-equal.subx.html#L193'>check-stream-equal</a> <a href='../064write-byte.subx.html#L290'>_test-output-stream</a> <span class="Constant">"_loop0x00000001:\nab _break0x00000001/imm32 \ncd _loop0x00000001/imm32 \n_break0x00000001:\n"</span> <span class="Constant">"F - test-subx-braces-1"</span>) -<span id="L328" class="LineNr">328 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L328" class="LineNr">328 </span> <span class="subxS1Comment"># . epilogue</span> <span id="L329" class="LineNr">329 </span> 89/<- %esp 5/r32/ebp <span id="L330" class="LineNr">330 </span> 5d/pop-to-ebp <span id="L331" class="LineNr">331 </span> c3/return @@ -399,7 +398,7 @@ if ('onhashchange' in window) { <span id="L347" class="LineNr">347 </span> <span class="subxComment"># cd _loop1/imm32</span> <span id="L348" class="LineNr">348 </span> <span class="subxComment"># _break1:</span> <span id="L349" class="LineNr">349 </span> <span class="subxComment">#</span> -<span id="L350" class="LineNr">350 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L350" class="LineNr">350 </span> <span class="subxS1Comment"># . prologue</span> <span id="L351" class="LineNr">351 </span> 55/push-ebp <span id="L352" class="LineNr">352 </span> 89/<- %ebp 4/r32/esp <span id="L353" class="LineNr">353 </span> <span class="subxComment"># setup</span> @@ -420,284 +419,10 @@ if ('onhashchange' in window) { <span id="L368" class="LineNr">368 </span> (<a href='../064write-byte.subx.html#L79'>flush</a> _test-output-buffered-file) <span id="L369" class="Folded">369 </span><span class="Folded">+-- 5 lines: #? # dump _test-output-stream --------------------------------------------------------------------------------------------------------------</span> <span id="L374" class="LineNr">374 </span> (<a href='../058stream-equal.subx.html#L193'>check-stream-equal</a> <a href='../064write-byte.subx.html#L290'>_test-output-stream</a> <span class="Constant">"_loop0x00000001:\n_loop0x00000002:\nab _break0x00000002/imm32 \n_break0x00000002:\ncd _loop0x00000001/imm32 \n_break0x00000001:\n"</span> <span class="Constant">"F - test-subx-braces-2"</span>) -<span id="L375" class="LineNr">375 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L375" class="LineNr">375 </span> <span class="subxS1Comment"># . epilogue</span> <span id="L376" class="LineNr">376 </span> 89/<- %esp 5/r32/ebp <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="subxComment"># let's just put stack primitives here for now</span> -<span id="L381" class="LineNr">381 </span><span class="subxComment"># we need to think about how to maintain layers of the library at different levels of syntax sugar</span> -<span id="L382" class="LineNr">382 </span> -<span id="L383" class="LineNr">383 </span><span class="subxComment"># A stack looks like this:</span> -<span id="L384" class="LineNr">384 </span><span class="subxComment"># top: int</span> -<span id="L385" class="LineNr">385 </span><span class="subxComment"># data: (array byte) # prefixed by length as usual</span> -<span id="L386" class="LineNr">386 </span> -<span id="L387" class="LineNr">387 </span><span class="subxFunction">clear-stack</span>: <span class="subxComment"># s : (address stack)</span> -<span id="L388" class="LineNr">388 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L389" class="LineNr">389 </span> 55/push-ebp -<span id="L390" class="LineNr">390 </span> 89/<- %ebp 4/r32/esp -<span id="L391" class="LineNr">391 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L392" class="LineNr">392 </span> 50/push-eax -<span id="L393" class="LineNr">393 </span> 51/push-ecx -<span id="L394" class="LineNr">394 </span> <span class="subxComment"># eax = s</span> -<span id="L395" class="LineNr">395 </span> 8b/-> *(ebp+8) 0/r32/eax -<span id="L396" class="LineNr">396 </span> <span class="subxComment"># ecx = s->length</span> -<span id="L397" class="LineNr">397 </span> 8b/-> *(eax+4) 1/r32/ecx -<span id="L398" class="LineNr">398 </span> <span class="subxComment"># ecx = &s->data[s->length]</span> -<span id="L399" class="LineNr">399 </span> 8d/copy-address *(eax+ecx+8) 1/r32/ecx -<span id="L400" class="LineNr">400 </span> <span class="subxComment"># s->top = 0</span> -<span id="L401" class="LineNr">401 </span> c7/copy 0/subop/copy *eax 0/imm32 -<span id="L402" class="LineNr">402 </span> <span class="subxComment"># eax = s->data</span> -<span id="L403" class="LineNr">403 </span> 81 0/subop/add %eax 8/imm32 -<span id="L404" class="LineNr">404 </span><span class="Constant">$clear-stack:loop</span>: -<span id="L405" class="LineNr">405 </span> <span class="subxComment"># if (eax >= ecx) break</span> -<span id="L406" class="LineNr">406 </span> 39/compare %eax 1/r32/ecx -<span id="L407" class="LineNr">407 </span> 73/jump-if-greater-or-equal-unsigned $clear-stack:end/disp8 -<span id="L408" class="LineNr">408 </span> <span class="subxComment"># *eax = 0</span> -<span id="L409" class="LineNr">409 </span> c6 0/subop/copy-byte *eax 0/imm8 -<span id="L410" class="LineNr">410 </span> <span class="subxComment"># ++eax</span> -<span id="L411" class="LineNr">411 </span> 40/increment-eax -<span id="L412" class="LineNr">412 </span> eb/jump $clear-stack:<span class="Constant">loop</span>/disp8 -<span id="L413" class="LineNr">413 </span><span class="Constant">$clear-stack:end</span>: -<span id="L414" class="LineNr">414 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L415" class="LineNr">415 </span> 59/pop-to-ecx -<span id="L416" class="LineNr">416 </span> 58/pop-to-eax -<span id="L417" class="LineNr">417 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L418" class="LineNr">418 </span> 89/<- %esp 5/r32/ebp -<span id="L419" class="LineNr">419 </span> 5d/pop-to-ebp -<span id="L420" class="LineNr">420 </span> c3/return -<span id="L421" class="LineNr">421 </span> -<span id="L422" class="LineNr">422 </span><span class="subxTest">test-clear-stack</span>: -<span id="L423" class="LineNr">423 </span> <span class="subxComment"># var ecx : (address stack) = stack of size 8 with random data in it</span> -<span id="L424" class="LineNr">424 </span> 68/push 34/imm32 -<span id="L425" class="LineNr">425 </span> 68/push 35/imm32 -<span id="L426" class="LineNr">426 </span> 68/push 8/imm32/length -<span id="L427" class="LineNr">427 </span> 68/push 14/imm32/top -<span id="L428" class="LineNr">428 </span> 89/<- %ecx 4/r32/esp -<span id="L429" class="LineNr">429 </span> <span class="subxComment"># clear</span> -<span id="L430" class="LineNr">430 </span> (<a href='braces.subx.html#L387'>clear-stack</a> %ecx) -<span id="L431" class="LineNr">431 </span> <span class="subxComment"># top should be 0</span> -<span id="L432" class="LineNr">432 </span> 58/pop-to-eax -<span id="L433" class="LineNr">433 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 0 <span class="Constant">"F - <a href='braces.subx.html#L422'>test-clear-stack</a>: top"</span>) -<span id="L434" class="LineNr">434 </span> <span class="subxComment"># length should remain 8</span> -<span id="L435" class="LineNr">435 </span> 58/pop-to-eax -<span id="L436" class="LineNr">436 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 8 <span class="Constant">"F - <a href='braces.subx.html#L422'>test-clear-stack</a>: length"</span>) -<span id="L437" class="LineNr">437 </span> <span class="subxComment"># first word is 0</span> -<span id="L438" class="LineNr">438 </span> 58/pop-to-eax -<span id="L439" class="LineNr">439 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 0 <span class="Constant">"F - <a href='braces.subx.html#L422'>test-clear-stack</a>: data[0..3]"</span>) -<span id="L440" class="LineNr">440 </span> <span class="subxComment"># second word is 0</span> -<span id="L441" class="LineNr">441 </span> 58/pop-to-eax -<span id="L442" class="LineNr">442 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 0 <span class="Constant">"F - <a href='braces.subx.html#L422'>test-clear-stack</a>: data[4..7]"</span>) -<span id="L443" class="LineNr">443 </span> c3/return -<span id="L444" class="LineNr">444 </span> -<span id="L445" class="LineNr">445 </span><span class="subxFunction">push</span>: <span class="subxComment"># s : (address stack), n : int</span> -<span id="L446" class="LineNr">446 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L447" class="LineNr">447 </span> 55/push-ebp -<span id="L448" class="LineNr">448 </span> 89/<- %ebp 4/r32/esp -<span id="L449" class="LineNr">449 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L450" class="LineNr">450 </span> 50/push-eax -<span id="L451" class="LineNr">451 </span> 51/push-ecx -<span id="L452" class="LineNr">452 </span> 56/push-esi -<span id="L453" class="LineNr">453 </span> <span class="subxComment"># esi = s</span> -<span id="L454" class="LineNr">454 </span> 8b/-> *(ebp+8) 6/r32/esi -<span id="L455" class="LineNr">455 </span> <span class="subxComment"># ecx = s->top</span> -<span id="L456" class="LineNr">456 </span> 8b/-> *esi 1/r32/ecx -<span id="L457" class="LineNr">457 </span> <span class="subxComment"># if (s->top >= s->length) abort</span> -<span id="L458" class="LineNr">458 </span> 39/compare *(esi+4) 1/r32/ecx -<span id="L459" class="LineNr">459 </span> 7e/jump-if-lesser-or-equal $push:abort/disp8 -<span id="L460" class="LineNr">460 </span> <span class="subxComment"># s->data[s->top] = n</span> -<span id="L461" class="LineNr">461 </span> 8b/-> *(ebp+0xc) 0/r32/eax -<span id="L462" class="LineNr">462 </span> 89/<- *(esi+ecx+8) 0/r32/eax -<span id="L463" class="LineNr">463 </span> <span class="subxComment"># s->top += 4</span> -<span id="L464" class="LineNr">464 </span> 81 0/subop/add *esi 4/imm32 -<span id="L465" class="LineNr">465 </span><span class="Constant">$push:end</span>: -<span id="L466" class="LineNr">466 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L467" class="LineNr">467 </span> 5e/pop-to-esi -<span id="L468" class="LineNr">468 </span> 59/pop-to-ecx -<span id="L469" class="LineNr">469 </span> 58/pop-to-eax -<span id="L470" class="LineNr">470 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L471" class="LineNr">471 </span> 89/<- %esp 5/r32/ebp -<span id="L472" class="LineNr">472 </span> 5d/pop-to-ebp -<span id="L473" class="LineNr">473 </span> c3/return -<span id="L474" class="LineNr">474 </span> -<span id="L475" class="LineNr">475 </span><span class="Constant">$push:abort</span>: -<span id="L476" class="LineNr">476 </span> <span class="subxComment"># print(stderr, "error: push: no space left")</span> -<span id="L477" class="LineNr">477 </span> <span class="subxS1Comment"># . write-buffered(Stderr, "error: push: no space left")</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="Constant">"error: <a href='braces.subx.html#L445'>push</a>: no space left"</span>/imm32 -<span id="L480" class="LineNr">480 </span> 68/push <span class="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L481" class="LineNr">481 </span> <span class="subxS2Comment"># . . call</span> -<span id="L482" class="LineNr">482 </span> e8/call <a href='../065write-buffered.subx.html#L8'>write-buffered</a>/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 %esp 8/imm32 -<span id="L485" class="LineNr">485 </span> <span class="subxS1Comment"># . flush(Stderr)</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="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L488" class="LineNr">488 </span> <span class="subxS2Comment"># . . call</span> -<span id="L489" class="LineNr">489 </span> e8/call <a href='../064write-byte.subx.html#L79'>flush</a>/disp32 -<span id="L490" class="LineNr">490 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L491" class="LineNr">491 </span> 81 0/subop/add %esp 4/imm32 -<span id="L492" class="LineNr">492 </span> <span class="subxS1Comment"># . syscall(exit, 1)</span> -<span id="L493" class="LineNr">493 </span> bb/copy-to-ebx 1/imm32 -<span id="L494" class="LineNr">494 </span> b8/copy-to-eax 1/imm32/exit -<span id="L495" class="LineNr">495 </span> cd/syscall 0x80/imm8 -<span id="L496" class="LineNr">496 </span> <span class="subxComment"># never gets here</span> -<span id="L497" class="LineNr">497 </span> -<span id="L498" class="LineNr">498 </span><span class="subxTest">test-push</span>: -<span id="L499" class="LineNr">499 </span> <span class="subxComment"># var ecx : (address stack) = empty stack of size 8</span> -<span id="L500" class="LineNr">500 </span> 68/push 0/imm32 -<span id="L501" class="LineNr">501 </span> 68/push 0/imm32 -<span id="L502" class="LineNr">502 </span> 68/push 8/imm32/length -<span id="L503" class="LineNr">503 </span> 68/push 0/imm32/top -<span id="L504" class="LineNr">504 </span> 89/<- %ecx 4/r32/esp -<span id="L505" class="LineNr">505 </span> <span class="subxComment">#</span> -<span id="L506" class="LineNr">506 </span> (<a href='braces.subx.html#L445'>push</a> %ecx 42) -<span id="L507" class="LineNr">507 </span> <span class="subxComment"># top</span> -<span id="L508" class="LineNr">508 </span> 58/pop-to-eax -<span id="L509" class="LineNr">509 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 4 <span class="Constant">"F - <a href='braces.subx.html#L498'>test-push</a>: top"</span>) -<span id="L510" class="LineNr">510 </span> <span class="subxComment"># length</span> -<span id="L511" class="LineNr">511 </span> 58/pop-to-eax -<span id="L512" class="LineNr">512 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 8 <span class="Constant">"F - <a href='braces.subx.html#L498'>test-push</a>: length"</span>) -<span id="L513" class="LineNr">513 </span> <span class="subxComment"># first word is 42</span> -<span id="L514" class="LineNr">514 </span> 58/pop-to-eax -<span id="L515" class="LineNr">515 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 42 <span class="Constant">"F - <a href='braces.subx.html#L498'>test-push</a>: data[0..3]"</span>) -<span id="L516" class="LineNr">516 </span> <span class="subxComment"># second word is 0</span> -<span id="L517" class="LineNr">517 </span> 58/pop-to-eax -<span id="L518" class="LineNr">518 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 0 <span class="Constant">"F - <a href='braces.subx.html#L498'>test-push</a>: data[4..7]"</span>) -<span id="L519" class="LineNr">519 </span> c3/return -<span id="L520" class="LineNr">520 </span> -<span id="L521" class="LineNr">521 </span><span class="subxFunction">pop</span>: <span class="subxComment"># s : (address stack) -> n/eax : int</span> -<span id="L522" class="LineNr">522 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L523" class="LineNr">523 </span> 55/push-ebp -<span id="L524" class="LineNr">524 </span> 89/<- %ebp 4/r32/esp -<span id="L525" class="LineNr">525 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L526" class="LineNr">526 </span> 51/push-ecx -<span id="L527" class="LineNr">527 </span> 56/push-esi -<span id="L528" class="LineNr">528 </span> <span class="subxComment"># esi = s</span> -<span id="L529" class="LineNr">529 </span> 8b/-> *(ebp+8) 6/r32/esi -<span id="L530" class="LineNr">530 </span> <span class="subxComment"># if (s->top <= 0) abort</span> -<span id="L531" class="LineNr">531 </span> 81 7/subop/compare *esi 0/imm32 -<span id="L532" class="LineNr">532 </span> 7e/jump-if-lesser-or-equal $pop:abort/disp8 -<span id="L533" class="LineNr">533 </span> <span class="subxComment"># s->top -= 4</span> -<span id="L534" class="LineNr">534 </span> 81 5/subop/subtract *esi 4/imm32 -<span id="L535" class="LineNr">535 </span> <span class="subxComment"># eax = s->data[s->top]</span> -<span id="L536" class="LineNr">536 </span> 8b/-> *esi 1/r32/ecx/top -<span id="L537" class="LineNr">537 </span> 8b/-> *(esi+ecx+8) 0/r32/eax -<span id="L538" class="LineNr">538 </span><span class="Constant">$pop:end</span>: -<span id="L539" class="LineNr">539 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L540" class="LineNr">540 </span> 5e/pop-to-esi -<span id="L541" class="LineNr">541 </span> 59/pop-to-ecx -<span id="L542" class="LineNr">542 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L543" class="LineNr">543 </span> 89/<- %esp 5/r32/ebp -<span id="L544" class="LineNr">544 </span> 5d/pop-to-ebp -<span id="L545" class="LineNr">545 </span> c3/return -<span id="L546" class="LineNr">546 </span> -<span id="L547" class="LineNr">547 </span><span class="Constant">$pop:abort</span>: -<span id="L548" class="LineNr">548 </span> <span class="subxComment"># print(stderr, "error: pop: nothing left in stack")</span> -<span id="L549" class="LineNr">549 </span> <span class="subxS1Comment"># . write-buffered(Stderr, "error: pop: nothing left in stack")</span> -<span id="L550" class="LineNr">550 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L551" class="LineNr">551 </span> 68/push <span class="Constant">"error: <a href='braces.subx.html#L521'>pop</a>: nothing left in stack"</span>/imm32 -<span id="L552" class="LineNr">552 </span> 68/push <span class="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L553" class="LineNr">553 </span> <span class="subxS2Comment"># . . call</span> -<span id="L554" class="LineNr">554 </span> e8/call <a href='../065write-buffered.subx.html#L8'>write-buffered</a>/disp32 -<span id="L555" class="LineNr">555 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L556" class="LineNr">556 </span> 81 0/subop/add %esp 8/imm32 -<span id="L557" class="LineNr">557 </span> <span class="subxS1Comment"># . flush(Stderr)</span> -<span id="L558" class="LineNr">558 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L559" class="LineNr">559 </span> 68/push <span class="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L560" class="LineNr">560 </span> <span class="subxS2Comment"># . . call</span> -<span id="L561" class="LineNr">561 </span> e8/call <a href='../064write-byte.subx.html#L79'>flush</a>/disp32 -<span id="L562" class="LineNr">562 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L563" class="LineNr">563 </span> 81 0/subop/add %esp 4/imm32 -<span id="L564" class="LineNr">564 </span> <span class="subxS1Comment"># . syscall(exit, 1)</span> -<span id="L565" class="LineNr">565 </span> bb/copy-to-ebx 1/imm32 -<span id="L566" class="LineNr">566 </span> b8/copy-to-eax 1/imm32/exit -<span id="L567" class="LineNr">567 </span> cd/syscall 0x80/imm8 -<span id="L568" class="LineNr">568 </span> <span class="subxComment"># never gets here</span> -<span id="L569" class="LineNr">569 </span> -<span id="L570" class="LineNr">570 </span><span class="subxTest">test-pop</span>: -<span id="L571" class="LineNr">571 </span> <span class="subxComment"># var ecx : (address stack) = stack of size 8 containing just 42</span> -<span id="L572" class="LineNr">572 </span> 68/push 0/imm32 -<span id="L573" class="LineNr">573 </span> 68/push 42/imm32 -<span id="L574" class="LineNr">574 </span> 68/push 8/imm32/length -<span id="L575" class="LineNr">575 </span> 68/push 4/imm32/top -<span id="L576" class="LineNr">576 </span> 89/<- %ecx 4/r32/esp -<span id="L577" class="LineNr">577 </span> <span class="subxComment">#</span> -<span id="L578" class="LineNr">578 </span> (<a href='braces.subx.html#L521'>pop</a> %ecx) <span class="subxComment"># => eax</span> -<span id="L579" class="LineNr">579 </span> <span class="subxComment"># result</span> -<span id="L580" class="LineNr">580 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 42 <span class="Constant">"F - <a href='braces.subx.html#L570'>test-pop</a>: result"</span>) -<span id="L581" class="LineNr">581 </span> <span class="subxComment"># top</span> -<span id="L582" class="LineNr">582 </span> 58/pop-to-eax -<span id="L583" class="LineNr">583 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 0 <span class="Constant">"F - <a href='braces.subx.html#L570'>test-pop</a>: top"</span>) -<span id="L584" class="LineNr">584 </span> <span class="subxComment"># length</span> -<span id="L585" class="LineNr">585 </span> 58/pop-to-eax -<span id="L586" class="LineNr">586 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 8 <span class="Constant">"F - <a href='braces.subx.html#L570'>test-pop</a>: length"</span>) -<span id="L587" class="LineNr">587 </span> <span class="subxComment"># clean up</span> -<span id="L588" class="LineNr">588 </span> 81 0/subop/add %esp 8/imm32 -<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="subxFunction">top</span>: <span class="subxComment"># s : (address stack) -> n/eax : int</span> -<span id="L592" class="LineNr">592 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L593" class="LineNr">593 </span> 55/push-ebp -<span id="L594" class="LineNr">594 </span> 89/<- %ebp 4/r32/esp -<span id="L595" class="LineNr">595 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L596" class="LineNr">596 </span> 51/push-ecx -<span id="L597" class="LineNr">597 </span> 56/push-esi -<span id="L598" class="LineNr">598 </span> <span class="subxComment"># esi = s</span> -<span id="L599" class="LineNr">599 </span> 8b/-> *(ebp+8) 6/r32/esi -<span id="L600" class="LineNr">600 </span> <span class="subxComment"># if (s->top <= 0) abort</span> -<span id="L601" class="LineNr">601 </span> 81 7/subop/compare *esi 0/imm32 -<span id="L602" class="LineNr">602 </span> 7e/jump-if-lesser-or-equal $top:abort/disp8 -<span id="L603" class="LineNr">603 </span> <span class="subxComment"># eax = s->data[s->top - 4]</span> -<span id="L604" class="LineNr">604 </span> 8b/-> *esi 1/r32/ecx/top -<span id="L605" class="LineNr">605 </span> 81 5/subop/subtract %ecx 4/imm32 -<span id="L606" class="LineNr">606 </span> 8b/-> *(esi+ecx+8) 0/r32/eax -<span id="L607" class="LineNr">607 </span><span class="Constant">$top:end</span>: -<span id="L608" class="LineNr">608 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L609" class="LineNr">609 </span> 5e/pop-to-esi -<span id="L610" class="LineNr">610 </span> 59/pop-to-ecx -<span id="L611" class="LineNr">611 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L612" class="LineNr">612 </span> 89/<- %esp 5/r32/ebp -<span id="L613" class="LineNr">613 </span> 5d/pop-to-ebp -<span id="L614" class="LineNr">614 </span> c3/return -<span id="L615" class="LineNr">615 </span> -<span id="L616" class="LineNr">616 </span><span class="Constant">$top:abort</span>: -<span id="L617" class="LineNr">617 </span> <span class="subxComment"># print(stderr, "error: top: nothing left in stack")</span> -<span id="L618" class="LineNr">618 </span> <span class="subxS1Comment"># . write-buffered(Stderr, "error: top: nothing left in stack")</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">"error: <a href='braces.subx.html#L591'>top</a>: nothing left in stack"</span>/imm32 -<span id="L621" class="LineNr">621 </span> 68/push <span class="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L622" class="LineNr">622 </span> <span class="subxS2Comment"># . . call</span> -<span id="L623" class="LineNr">623 </span> e8/call <a href='../065write-buffered.subx.html#L8'>write-buffered</a>/disp32 -<span id="L624" class="LineNr">624 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L625" class="LineNr">625 </span> 81 0/subop/add %esp 8/imm32 -<span id="L626" class="LineNr">626 </span> <span class="subxS1Comment"># . flush(Stderr)</span> -<span id="L627" class="LineNr">627 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L628" class="LineNr">628 </span> 68/push <span class="SpecialChar"><a href='../065write-buffered.subx.html#L213'>Stderr</a></span>/imm32 -<span id="L629" class="LineNr">629 </span> <span class="subxS2Comment"># . . call</span> -<span id="L630" class="LineNr">630 </span> e8/call <a href='../064write-byte.subx.html#L79'>flush</a>/disp32 -<span id="L631" class="LineNr">631 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L632" class="LineNr">632 </span> 81 0/subop/add %esp 4/imm32 -<span id="L633" class="LineNr">633 </span> <span class="subxS1Comment"># . syscall(exit, 1)</span> -<span id="L634" class="LineNr">634 </span> bb/copy-to-ebx 1/imm32 -<span id="L635" class="LineNr">635 </span> b8/copy-to-eax 1/imm32/exit -<span id="L636" class="LineNr">636 </span> cd/syscall 0x80/imm8 -<span id="L637" class="LineNr">637 </span> <span class="subxComment"># never gets here</span> -<span id="L638" class="LineNr">638 </span> -<span id="L639" class="LineNr">639 </span><span class="subxTest">test-top</span>: -<span id="L640" class="LineNr">640 </span> <span class="subxComment"># var ecx : (address stack) = stack of size 8 containing just 42</span> -<span id="L641" class="LineNr">641 </span> 68/push 0/imm32 -<span id="L642" class="LineNr">642 </span> 68/push 42/imm32 -<span id="L643" class="LineNr">643 </span> 68/push 8/imm32/length -<span id="L644" class="LineNr">644 </span> 68/push 4/imm32/top -<span id="L645" class="LineNr">645 </span> 89/<- %ecx 4/r32/esp -<span id="L646" class="LineNr">646 </span> <span class="subxComment">#</span> -<span id="L647" class="LineNr">647 </span> (<a href='braces.subx.html#L591'>top</a> %ecx) <span class="subxComment"># => eax</span> -<span id="L648" class="LineNr">648 </span> <span class="subxComment"># result</span> -<span id="L649" class="LineNr">649 </span> (<a href='../051test.subx.html#L24'>check-ints-equal</a> %eax 42 <span class="Constant">"F - <a href='braces.subx.html#L639'>test-top</a>: result"</span>) -<span id="L650" class="LineNr">650 </span> <span class="subxComment"># clean up</span> -<span id="L651" class="LineNr">651 </span> 81 0/subop/add %esp 0x10/imm32 -<span id="L652" class="LineNr">652 </span> c3/return </pre> </body> </html> |