198 lines
52 KiB
Plaintext
198 lines
52 KiB
Plaintext
(notonline)-->
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<span style="color: #000080;font-style:italic;">--
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-- demo\rosetta\Compiler\cgen.exw
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-- ==============================
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--
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-- Generates 32-bit machine code (see note in vm.exw)
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--</span>
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<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (machine code!)</span>
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<span style="color: #008080;">include</span> <span style="color: #000000;">cgen</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
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<span style="color: #008080;">function</span> <span style="color: #000000;">get_var_name</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">addr</span><span style="color: #0000FF;">)</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">(</span><span style="color: #000000;">addr</span><span style="color: #0000FF;">-</span><span style="color: #000000;">var_mem</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">4</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">n</span><span style="color: #0000FF;"><</span><span style="color: #000000;">1</span> <span style="color: #008080;">or</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">></span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">vars</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">return</span> <span style="color: #000000;">vars</span><span style="color: #0000FF;">[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
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<span style="color: #008080;">function</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">object</span> <span style="color: #000000;">oh</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">fmt</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">args</span><span style="color: #0000FF;">={})</span>
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<span style="color: #000080;font-style:italic;">-- helper routine to display the octal/hex bytes just decoded,
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-- along with the code offset and the human-readable text.</span>
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">args</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span> <span style="color: #000000;">fmt</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fmt</span><span style="color: #0000FF;">,</span><span style="color: #000000;">args</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">sequence</span> <span style="color: #000000;">octhex</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{}</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">base</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">len</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
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<span style="color: #008080;">if</span> <span style="color: #004080;">integer</span><span style="color: #0000FF;">(</span><span style="color: #000000;">oh</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span> <span style="color: #000080;font-style:italic;">-- all octal</span>
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<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">oh</span> <span style="color: #008080;">do</span>
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<span style="color: #000000;">octhex</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">append</span><span style="color: #0000FF;">(</span><span style="color: #000000;">octhex</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"0o%03o"</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">base</span><span style="color: #0000FF;">)))</span>
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<span style="color: #000000;">base</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
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<span style="color: #000000;">len</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">oh</span>
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<span style="color: #008080;">else</span> <span style="color: #000080;font-style:italic;">-- some octal and some hex</span>
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<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">oh</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">by</span> <span style="color: #000000;">2</span> <span style="color: #008080;">do</span>
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<span style="color: #008080;">for</span> <span style="color: #000000;">j</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">oh</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">do</span>
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<span style="color: #000000;">octhex</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">append</span><span style="color: #0000FF;">(</span><span style="color: #000000;">octhex</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"0o%03o"</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">base</span><span style="color: #0000FF;">)))</span>
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<span style="color: #000000;">base</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
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<span style="color: #000000;">len</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">oh</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
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<span style="color: #008080;">for</span> <span style="color: #000000;">j</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">oh</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">do</span>
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<span style="color: #000000;">octhex</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">append</span><span style="color: #0000FF;">(</span><span style="color: #000000;">octhex</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"#%02x"</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">base</span><span style="color: #0000FF;">)))</span>
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<span style="color: #000000;">base</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
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<span style="color: #000000;">len</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">oh</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">output_file</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%4d: %-30s %s\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">join</span><span style="color: #0000FF;">(</span><span style="color: #000000;">octhex</span><span style="color: #0000FF;">,</span><span style="color: #008000;">","</span><span style="color: #0000FF;">),</span><span style="color: #000000;">fmt</span><span style="color: #0000FF;">})</span>
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<span style="color: #008080;">return</span> <span style="color: #000000;">len</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
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<span style="color: #008080;">constant</span> <span style="color: #000000;">cccodes</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"o?"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"no?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"b?"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"ae?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"z"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"ne"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"be?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"a?"</span><span style="color: #0000FF;">,</span>
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<span style="color: #000080;font-style:italic;">-- 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 ,</span>
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<span style="color: #008000;">"s?"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"ns?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"pe?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"po?"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"l"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"ge"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"le"</span> <span style="color: #0000FF;">,</span><span style="color: #008000;">"g"</span> <span style="color: #0000FF;">}</span>
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<span style="color: #000080;font-style:italic;">-- 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15</span>
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<span style="color: #008080;">constant</span> <span style="color: #000000;">regs</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"eax"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"ecx"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"edx"</span><span style="color: #0000FF;">}</span> <span style="color: #000080;font-style:italic;">-- (others as/when needed)</span>
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">()</span>
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<span style="color: #000080;font-style:italic;">-- for a much more complete (and better organised) disassembler, see p2asm.e</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- nb 0-based</span>
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<span style="color: #000000;">opcode</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">xrm</span>
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<span style="color: #008080;">while</span> <span style="color: #000000;">pc</span><span style="color: #0000FF;"><</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
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<span style="color: #000000;">opcode</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">-</span><span style="color: #000000;">1</span>
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<span style="color: #008080;">switch</span> <span style="color: #000000;">opcode</span> <span style="color: #008080;">do</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o150</span><span style="color: #0000FF;">:</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">vaddr</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek4s</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">vaddr</span><span style="color: #0000FF;">,</span><span style="color: #000000;">stringptrs</span><span style="color: #0000FF;">)</span>
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<span style="color: #004080;">object</span> <span style="color: #000000;">arg</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">n</span><span style="color: #0000FF;">?</span><span style="color: #000000;">enquote</span><span style="color: #0000FF;">(</span><span style="color: #000000;">strings</span><span style="color: #0000FF;">[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">])</span>
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<span style="color: #0000FF;">:</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">vaddr</span><span style="color: #0000FF;">))</span>
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<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"push %s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">})</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o217</span><span style="color: #0000FF;">:</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o377</span><span style="color: #0000FF;">:</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">0o217</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o377</span><span style="color: #0000FF;">})</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"pop"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"push"</span><span style="color: #0000FF;">}[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span>
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<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">!=</span><span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">0o005</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o065</span><span style="color: #0000FF;">})</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">addr</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek4u</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"%s [%s]"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">op</span><span style="color: #0000FF;">,</span><span style="color: #000000;">get_var_name</span><span style="color: #0000FF;">(</span><span style="color: #000000;">addr</span><span style="color: #0000FF;">)})</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o061</span><span style="color: #0000FF;">:</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o071</span><span style="color: #0000FF;">:</span>
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<span style="color: #008080;">case</span> <span style="color: #000000;">0o205</span><span style="color: #0000FF;">:</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">0o061</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o071</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o205</span><span style="color: #0000FF;">})</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"xor"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"cmp"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"test"</span><span style="color: #0000FF;">}[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span>
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<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o300</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">0o300</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">r1</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">regs</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o070</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">0o010</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">r2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">regs</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o007</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s %s,%s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">op</span><span style="color: #0000FF;">,</span><span style="color: #000000;">r1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">r2</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o017</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">switch</span> <span style="color: #000000;">xrm</span> <span style="color: #008080;">do</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o224</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o225</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o234</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o235</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o236</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o237</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">cc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">cccodes</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o017</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
|
|
<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">if</span> <span style="color: #000000;">xrm</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0o300</span> <span style="color: #008080;">then</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"set%s al"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">cc</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">elsif</span> <span style="color: #000000;">xrm</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0o301</span> <span style="color: #008080;">then</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"set%s cl"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">cc</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">else</span>
|
|
<span style="color: #008080;">exit</span>
|
|
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o204</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">offset</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek4s</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"jz %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">6</span><span style="color: #0000FF;">+</span><span style="color: #000000;">offset</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">else</span>
|
|
<span style="color: #008080;">exit</span>
|
|
<span style="color: #008080;">end</span> <span style="color: #008080;">switch</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o010</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o040</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">if</span> <span style="color: #000000;">xrm</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0o310</span> <span style="color: #008080;">then</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">lop</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"or"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"and"</span><span style="color: #0000FF;">}[</span><span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">0o010</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o040</span><span style="color: #0000FF;">})]</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s al,cl"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">lop</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">else</span>
|
|
<span style="color: #008080;">exit</span>
|
|
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o120</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o122</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o130</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o131</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o132</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"push"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"pop"</span><span style="color: #0000FF;">}[</span><span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o070</span><span style="color: #0000FF;">),{</span><span style="color: #000000;">0o020</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o030</span><span style="color: #0000FF;">})]</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">reg</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">regs</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o007</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s %s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">op</span><span style="color: #0000FF;">,</span><span style="color: #000000;">reg</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o231</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"cdq"</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o164</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o353</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">jop</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0o164</span><span style="color: #0000FF;">?</span><span style="color: #008000;">"jz"</span><span style="color: #0000FF;">:</span><span style="color: #008000;">"jmp"</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">offset</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">peek1s</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"%s %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">jop</span><span style="color: #0000FF;">,</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">+</span><span style="color: #000000;">offset</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o351</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">offset</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek4s</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"jmp %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">5</span><span style="color: #0000FF;">+</span><span style="color: #000000;">offset</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o303</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"ret"</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o350</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">offset</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek4s</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #004080;">atom</span> <span style="color: #000000;">addr</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">offset</span><span style="color: #0000FF;">+</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">5</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">addr</span><span style="color: #0000FF;">,</span><span style="color: #000000;">builtins</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"call :%s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">builtin_names</span><span style="color: #0000FF;">[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]})</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o001</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o041</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o051</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">0o001</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o041</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o051</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #004080;">string</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"add"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"and"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"sub"</span><span style="color: #0000FF;">}[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span>
|
|
<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">switch</span> <span style="color: #000000;">xrm</span> <span style="color: #008080;">do</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o004</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #008080;">if</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">0o044</span> <span style="color: #008080;">then</span>
|
|
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s [esp],eax"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">op</span><span style="color: #0000FF;">})</span>
|
|
<span style="color: #008080;">else</span>
|
|
<span style="color: #008080;">exit</span>
|
|
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
|
|
<span style="color: #008080;">else</span>
|
|
<span style="color: #008080;">exit</span>
|
|
<span style="color: #008080;">end</span> <span style="color: #008080;">switch</span>
|
|
<span style="color: #008080;">case</span> <span style="color: #000000;">0o367</span><span style="color: #0000FF;">:</span>
|
|
<span style="color: #000000;">xrm</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">peek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">+</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
|
|
<span style="color: #008080;">if</span> <span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o300</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">0o300</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">n</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o070</span><span style="color: #0000FF;">),{</span><span style="color: #000000;">0o030</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o040</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o070</span><span style="color: #0000FF;">})</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"neg"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"mul"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"idiv"</span><span style="color: #0000FF;">}[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">reg</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">regs</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0o007</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
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<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">hxl</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s %s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">op</span><span style="color: #0000FF;">,</span><span style="color: #000000;">reg</span><span style="color: #0000FF;">})</span>
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<span style="color: #008080;">else</span>
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<span style="color: #008080;">exit</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">switch</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">pc</span><span style="color: #0000FF;"><</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">code</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
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<span style="color: #0000FF;">?</span><span style="color: #008000;">"incomplete:"</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">xrm</span><span style="color: #0000FF;">=-</span><span style="color: #000000;">1</span> <span style="color: #008080;">then</span>
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<span style="color: #0000FF;">?{</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"0o%03o"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">)}</span>
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<span style="color: #008080;">else</span>
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<span style="color: #0000FF;">?{</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"0o%03o 0o%03o"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">opcode</span><span style="color: #0000FF;">,</span><span style="color: #000000;">xrm</span><span style="color: #0000FF;">})}</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">main</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">cl</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">open_files</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cl</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">toks</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">lex</span><span style="color: #0000FF;">()</span>
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<span style="color: #004080;">object</span> <span style="color: #000000;">t</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">parse</span><span style="color: #0000FF;">()</span>
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<span style="color: #000000;">code_gen</span><span style="color: #0000FF;">(</span><span style="color: #000000;">t</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">fixup</span><span style="color: #0000FF;">()</span>
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<span style="color: #000000;">decode</span><span style="color: #0000FF;">()</span>
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<span style="color: #7060A8;">free</span><span style="color: #0000FF;">({</span><span style="color: #000000;">var_mem</span><span style="color: #0000FF;">,</span><span style="color: #000000;">code_mem</span><span style="color: #0000FF;">})</span>
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<span style="color: #000000;">close_files</span><span style="color: #0000FF;">()</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
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<span style="color: #000080;font-style:italic;">--main(command_line())</span>
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<span style="color: #000000;">main</span><span style="color: #0000FF;">({</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"gcd.c"</span><span style="color: #0000FF;">})</span>
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<!--
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