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authorKartik Agaram <vc@akkartik.com>2019-09-03 23:56:40 -0700
committerKartik Agaram <vc@akkartik.com>2019-09-03 23:56:40 -0700
commit007b5c7faa3737242ae9fd99c9e8657350ffca08 (patch)
tree6cbc15e6235f1758489f3c740eca66936178a596
parent904a053e9c3b55079ea842eb0c4447e0b8cb1022 (diff)
downloadmu-007b5c7faa3737242ae9fd99c9e8657350ffca08.tar.gz
5614
-rw-r--r--html/apps/calls.subx.html169
1 files changed, 168 insertions, 1 deletions
diff --git a/html/apps/calls.subx.html b/html/apps/calls.subx.html
index 78ba551b..0326972b 100644
--- a/html/apps/calls.subx.html
+++ b/html/apps/calls.subx.html
@@ -272,7 +272,174 @@ if ('onhashchange' in window) {
 <span id="L213" class="LineNr">213 </span>    5d/pop-to-ebp
 <span id="L214" class="LineNr">214 </span>    c3/return
 <span id="L215" class="LineNr">215 </span>
-<span id="L216" class="LineNr">216 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+<span id="L216" class="LineNr">216 </span><span class="subxFunction">next-word-string-or-expression-without-metadata</span>:  <span class="subxComment"># line : (address stream), word-slice : (address slice)</span>
+<span id="L217" class="LineNr">217 </span>    <span class="subxComment"># pseudocode:</span>
+<span id="L218" class="LineNr">218 </span>    <span class="subxComment">#   skip-chars-matching(line, ' ')</span>
+<span id="L219" class="LineNr">219 </span>    <span class="subxComment">#   if line-&gt;read &gt;= line-&gt;write              # end of line</span>
+<span id="L220" class="LineNr">220 </span>    <span class="subxComment">#     out = {0, 0}</span>
+<span id="L221" class="LineNr">221 </span>    <span class="subxComment">#     return</span>
+<span id="L222" class="LineNr">222 </span>    <span class="subxComment">#   out-&gt;start = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L223" class="LineNr">223 </span>    <span class="subxComment">#   if line-&gt;data[line-&gt;read] == '#'          # comment</span>
+<span id="L224" class="LineNr">224 </span>    <span class="subxComment">#     out.end = &amp;line-&gt;data[line-&gt;write]      # skip to end of line</span>
+<span id="L225" class="LineNr">225 </span>    <span class="subxComment">#     return</span>
+<span id="L226" class="LineNr">226 </span>    <span class="subxComment">#   if line-&gt;data[line-&gt;read] == '&quot;'          # string literal</span>
+<span id="L227" class="LineNr">227 </span>    <span class="subxComment">#     skip-string(line)</span>
+<span id="L228" class="LineNr">228 </span>    <span class="subxComment">#     out.end = &amp;line-&gt;data[line-&gt;read]         # no metadata</span>
+<span id="L229" class="LineNr">229 </span>    <span class="subxComment">#     return</span>
+<span id="L230" class="LineNr">230 </span>    <span class="subxComment">#   if line-&gt;data[line-&gt;read] == '*'          # expression</span>
+<span id="L231" class="LineNr">231 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read + 1] == ' '</span>
+<span id="L232" class="LineNr">232 </span>    <span class="subxComment">#       abort</span>
+<span id="L233" class="LineNr">233 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read + 1] == '('</span>
+<span id="L234" class="LineNr">234 </span>    <span class="subxComment">#       skip-until-close-paren(line)</span>
+<span id="L235" class="LineNr">235 </span>    <span class="subxComment">#       if (line-&gt;data[line-&gt;read] != ')'</span>
+<span id="L236" class="LineNr">236 </span>    <span class="subxComment">#         abort</span>
+<span id="L237" class="LineNr">237 </span>    <span class="subxComment">#       ++line-&gt;data[line-&gt;read] to skip ')'</span>
+<span id="L238" class="LineNr">238 </span>    <span class="subxComment">#     out-&gt;end = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L239" class="LineNr">239 </span>    <span class="subxComment">#     return</span>
+<span id="L240" class="LineNr">240 </span>    <span class="subxComment">#   if line-&gt;data[line-&gt;read] == ')'</span>
+<span id="L241" class="LineNr">241 </span>    <span class="subxComment">#     ++line-&gt;read to skip ')'</span>
+<span id="L242" class="LineNr">242 </span>    <span class="subxComment">#     # make sure there's nothing else of importance</span>
+<span id="L243" class="LineNr">243 </span>    <span class="subxComment">#     if line-&gt;read &gt;= line-&gt;write</span>
+<span id="L244" class="LineNr">244 </span>    <span class="subxComment">#       out = {0, 0}</span>
+<span id="L245" class="LineNr">245 </span>    <span class="subxComment">#       return</span>
+<span id="L246" class="LineNr">246 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read] != ' '</span>
+<span id="L247" class="LineNr">247 </span>    <span class="subxComment">#       abort</span>
+<span id="L248" class="LineNr">248 </span>    <span class="subxComment">#     skip-chars-matching-whitespace(line)</span>
+<span id="L249" class="LineNr">249 </span>    <span class="subxComment">#     if line-&gt;read &gt;= line-&gt;write</span>
+<span id="L250" class="LineNr">250 </span>    <span class="subxComment">#       out = {0, 0}</span>
+<span id="L251" class="LineNr">251 </span>    <span class="subxComment">#       return</span>
+<span id="L252" class="LineNr">252 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read] != '#'        # only thing permitted after ')' is a comment</span>
+<span id="L253" class="LineNr">253 </span>    <span class="subxComment">#       abort</span>
+<span id="L254" class="LineNr">254 </span>    <span class="subxComment">#     out.end = &amp;line-&gt;data[line-&gt;write]      # skip to end of line</span>
+<span id="L255" class="LineNr">255 </span>    <span class="subxComment">#     return</span>
+<span id="L256" class="LineNr">256 </span>    <span class="subxComment">#   # default case: read a word -- but no metadata</span>
+<span id="L257" class="LineNr">257 </span>    <span class="subxComment">#   while true</span>
+<span id="L258" class="LineNr">258 </span>    <span class="subxComment">#     if line-&gt;read &gt;= line-&gt;write</span>
+<span id="L259" class="LineNr">259 </span>    <span class="subxComment">#       break</span>
+<span id="L260" class="LineNr">260 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read] == ' '</span>
+<span id="L261" class="LineNr">261 </span>    <span class="subxComment">#       break</span>
+<span id="L262" class="LineNr">262 </span>    <span class="subxComment">#     if line-&gt;data[line-&gt;read] == '/'</span>
+<span id="L263" class="LineNr">263 </span>    <span class="subxComment">#       abort</span>
+<span id="L264" class="LineNr">264 </span>    <span class="subxComment">#     ++line-&gt;read</span>
+<span id="L265" class="LineNr">265 </span>    <span class="subxComment">#   out.end = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L266" class="LineNr">266 </span>    <span class="subxComment">#</span>
+<span id="L267" class="LineNr">267 </span>    <span class="subxComment"># registers:</span>
+<span id="L268" class="LineNr">268 </span>    <span class="subxComment">#   ecx: often line-&gt;read</span>
+<span id="L269" class="LineNr">269 </span>    <span class="subxComment">#   eax: often line-&gt;data[line-&gt;read]</span>
+<span id="L270" class="LineNr">270 </span>    <span class="subxComment">#</span>
+<span id="L271" class="LineNr">271 </span>    <span class="subxS1Comment"># . prolog</span>
+<span id="L272" class="LineNr">272 </span>    55/push-ebp
+<span id="L273" class="LineNr">273 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L274" class="LineNr">274 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L275" class="LineNr">275 </span>    50/push-eax
+<span id="L276" class="LineNr">276 </span>    51/push-ecx
+<span id="L277" class="LineNr">277 </span>    56/push-esi
+<span id="L278" class="LineNr">278 </span>    57/push-edi
+<span id="L279" class="LineNr">279 </span>    <span class="subxComment"># skip-chars-matching(line, ' ')</span>
+<span id="L280" class="LineNr">280 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L281" class="LineNr">281 </span>    68/push 0x20/imm32/space
+<span id="L282" class="LineNr">282 </span>    ff 6/subop/push *(ebp+8)
+<span id="L283" class="LineNr">283 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L284" class="LineNr">284 </span>    e8/call <a href='../073next-token.subx.html#L341'>skip-chars-matching</a>/disp32
+<span id="L285" class="LineNr">285 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L286" class="LineNr">286 </span>    81 0/subop/add %esp 8/imm32
+<span id="L287" class="LineNr">287 </span><span class="Constant">$next-word-string-or-expression-without-metadata:check0</span>:
+<span id="L288" class="LineNr">288 </span>    <span class="subxComment"># if (line-&gt;read &gt;= line-&gt;write) clear out and return</span>
+<span id="L289" class="LineNr">289 </span>    <span class="subxS1Comment"># . eax = line-&gt;read</span>
+<span id="L290" class="LineNr">290 </span>    8b/-&gt; *(esi+4) 0/r32/eax
+<span id="L291" class="LineNr">291 </span>    <span class="subxS1Comment"># . if (eax &lt; line-&gt;write) goto next check</span>
+<span id="L292" class="LineNr">292 </span>    3b/compare *esi 0/r32/eax
+<span id="L293" class="LineNr">293 </span>    7c/jump-if-lesser $next-word-string-or-expression-without-metadata:check-for-comment/disp8
+<span id="L294" class="LineNr">294 </span>    <span class="subxS1Comment"># . return out = {0, 0}</span>
+<span id="L295" class="LineNr">295 </span>    c7 0/subop/copy *edi 0/imm32
+<span id="L296" class="LineNr">296 </span>    c7 0/subop/copy *(edi+4) 0/imm32
+<span id="L297" class="LineNr">297 </span>    e9/jump $next-word-string-or-expression-without-metadata:end/disp32
+<span id="L298" class="LineNr">298 </span><span class="Constant">$next-word-string-or-expression-without-metadata:check-for-comment</span>:
+<span id="L299" class="LineNr">299 </span>    <span class="subxComment"># out-&gt;start = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L300" class="LineNr">300 </span>    8b/-&gt; *(esi+4) 1/r32/ecx
+<span id="L301" class="LineNr">301 </span>    8d/copy-address *(esi+ecx+0xc) 0/r32/eax
+<span id="L302" class="LineNr">302 </span>    89/&lt;- *edi 0/r32/eax
+<span id="L303" class="LineNr">303 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read] != '#') goto next check</span>
+<span id="L304" class="LineNr">304 </span>    <span class="subxS1Comment"># . eax = line-&gt;data[line-&gt;read]</span>
+<span id="L305" class="LineNr">305 </span>    31/xor %eax 0/r32/eax
+<span id="L306" class="LineNr">306 </span>    8a/copy-byte *(esi+ecx+0xc) 0/r32/AL
+<span id="L307" class="LineNr">307 </span>    <span class="subxS1Comment"># . if (eax != '#') goto next check</span>
+<span id="L308" class="LineNr">308 </span>    3d/compare-eax-and 0x23/imm32/pound
+<span id="L309" class="LineNr">309 </span>    75/jump-if-not-equal $next-word-string-or-expression-without-metadata:check-for-string-literal/disp8
+<span id="L310" class="LineNr">310 </span><span class="Constant">$next-word-string-or-expression-without-metadata:comment</span>:
+<span id="L311" class="LineNr">311 </span>    <span class="subxComment"># out-&gt;end = &amp;line-&gt;data[line-&gt;write]</span>
+<span id="L312" class="LineNr">312 </span>    8b/-&gt; *esi 0/r32/eax
+<span id="L313" class="LineNr">313 </span>    8d/copy-address *(esi+eax+0xc) 0/r32/eax
+<span id="L314" class="LineNr">314 </span>    89/&lt;- *(edi+4) 0/r32/eax
+<span id="L315" class="LineNr">315 </span>    <span class="subxComment"># line-&gt;read = line-&gt;write  # skip rest of line</span>
+<span id="L316" class="LineNr">316 </span>    8b/-&gt; *esi 0/r32/eax
+<span id="L317" class="LineNr">317 </span>    89/&lt;- *(esi+4) 0/r32/eax
+<span id="L318" class="LineNr">318 </span>    <span class="subxComment"># return</span>
+<span id="L319" class="LineNr">319 </span>    eb/jump $next-word-string-or-expression-without-metadata:end/disp8
+<span id="L320" class="LineNr">320 </span><span class="Constant">$next-word-string-or-expression-without-metadata:check-for-string-literal</span>:
+<span id="L321" class="LineNr">321 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read] != '&quot;') goto next check</span>
+<span id="L322" class="LineNr">322 </span>    3d/compare-eax-and 0x22/imm32/dquote
+<span id="L323" class="LineNr">323 </span>    75/jump-if-not-equal $next-word-string-or-expression-without-metadata:check-for-expression/disp8
+<span id="L324" class="LineNr">324 </span><span class="Constant">$next-word-string-or-expression-without-metadata:string-literal</span>:
+<span id="L325" class="LineNr">325 </span>    <span class="subxComment"># skip-string(line)</span>
+<span id="L326" class="LineNr">326 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L327" class="LineNr">327 </span>    56/push-esi
+<span id="L328" class="LineNr">328 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L329" class="LineNr">329 </span>    e8/call skip-string/disp32
+<span id="L330" class="LineNr">330 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L331" class="LineNr">331 </span>    81 0/subop/add %esp 4/imm32
+<span id="L332" class="LineNr">332 </span>    <span class="subxComment"># out-&gt;end = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L333" class="LineNr">333 </span>    8b/-&gt; *(esi+4) 1/r32/ecx
+<span id="L334" class="LineNr">334 </span>    8d/copy-address *(esi+ecx+0xc) 0/r32/eax
+<span id="L335" class="LineNr">335 </span>    89/&lt;- *(edi+4) 0/r32/eax
+<span id="L336" class="LineNr">336 </span>    <span class="subxComment"># return</span>
+<span id="L337" class="LineNr">337 </span>    eb/jump $next-word-string-or-expression-without-metadata:end/disp8
+<span id="L338" class="LineNr">338 </span><span class="Constant">$next-word-string-or-expression-without-metadata:check-for-expression</span>:
+<span id="L339" class="LineNr">339 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read] != '*') goto next check</span>
+<span id="L340" class="LineNr">340 </span>    3d/compare-eax-and 0x2a/imm32/asterisk
+<span id="L341" class="LineNr">341 </span>    75/jump-if-not-equal $next-word-string-or-expression-without-metadata:check-for-end-of-call/disp8
+<span id="L342" class="LineNr">342 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read + 1] == ' ') goto error1</span>
+<span id="L343" class="LineNr">343 </span>    8a/copy-byte *(esi+ecx+0xd) 0/r32/AL
+<span id="L344" class="LineNr">344 </span>    3d/compare-eax-and 0x20/imm32/space
+<span id="L345" class="LineNr">345 </span>    74/jump-if-equal $next-word-string-or-expression-without-metadata:error1/disp8
+<span id="L346" class="LineNr">346 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read] != '(') goto regular word</span>
+<span id="L347" class="LineNr">347 </span>    3d/compare-eax-and 0x28/imm32/open-paren
+<span id="L348" class="LineNr">348 </span>    75/jump-if-not-equal $next-word-string-or-expression-without-metadata:regular-word/disp8
+<span id="L349" class="LineNr">349 </span><span class="Constant">$next-word-string-or-expression-without-metadata:paren</span>:
+<span id="L350" class="LineNr">350 </span>    <span class="subxComment"># skip-until-close-paren(line)</span>
+<span id="L351" class="LineNr">351 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L352" class="LineNr">352 </span>    56/push-esi
+<span id="L353" class="LineNr">353 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L354" class="LineNr">354 </span>    e8/call skip-until-close-paren/disp32
+<span id="L355" class="LineNr">355 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L356" class="LineNr">356 </span>    81 0/subop/add %esp 4/imm32
+<span id="L357" class="LineNr">357 </span>    <span class="subxComment"># if (line-&gt;data[line-&gt;read] != ')') goto error2</span>
+<span id="L358" class="LineNr">358 </span>    <span class="subxS1Comment"># . eax = line-&gt;data[line-&gt;read]</span>
+<span id="L359" class="LineNr">359 </span>    8b/-&gt; *(esi+4) 1/r32/ecx
+<span id="L360" class="LineNr">360 </span>    8a/copy-byte *(esi+ecx+0xc) 0/r32/AL
+<span id="L361" class="LineNr">361 </span>    <span class="subxS1Comment"># . if (eax != ')') goto error2</span>
+<span id="L362" class="LineNr">362 </span>    3d/compare-eax-and 0x29/imm32/close-paren
+<span id="L363" class="LineNr">363 </span>    75/jump-if-not-equal $next-word-string-or-expression-without-metadata:error2/disp8
+<span id="L364" class="LineNr">364 </span>    <span class="subxComment"># skip ')'</span>
+<span id="L365" class="LineNr">365 </span>    ff 0/subop/increment *(esi+4)
+<span id="L366" class="LineNr">366 </span>    <span class="subxComment"># out-&gt;end = &amp;line-&gt;data[line-&gt;read]</span>
+<span id="L367" class="LineNr">367 </span>    8b/-&gt; *(esi+4) 1/r32/ecx
+<span id="L368" class="LineNr">368 </span>    8d/copy-address *(esi+ecx+0xc) 0/r32/eax
+<span id="L369" class="LineNr">369 </span>    89/&lt;- *(edi+4) 0/r32/eax
+<span id="L370" class="LineNr">370 </span>    <span class="subxComment"># return</span>
+<span id="L371" class="LineNr">371 </span>    eb/jump $next-word-string-or-expression-without-metadata:end/disp8
+<span id="L372" class="LineNr">372 </span><span class="Constant">$next-word-string-or-expression-without-metadata:end</span>:
+<span id="L373" class="LineNr">373 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L374" class="LineNr">374 </span>    5f/pop-to-edi
+<span id="L375" class="LineNr">375 </span>    5e/pop-to-esi
+<span id="L376" class="LineNr">376 </span>    59/pop-to-ecx
+<span id="L377" class="LineNr">377 </span>    58/pop-to-eax
+<span id="L378" class="LineNr">378 </span>    <span class="subxS1Comment"># . epilog</span>
+<span id="L379" class="LineNr">379 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L380" class="LineNr">380 </span>    5d/pop-to-ebp
+<span id="L381" class="LineNr">381 </span>    c3/return
+<span id="L382" class="LineNr">382 </span>
+<span id="L383" class="LineNr">383 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
 </pre>
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