diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-09-22 00:32:03 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-09-22 00:32:03 -0700 |
| commit | 1a4de9dd58201bb57a07ea931d1764064fc52e64 (patch) | |
| tree | 491ddf356cba78cb0ae248a9daa065e475c0a3da /html/subx/015immediate_addressing.cc.html | |
| parent | 08c2f2a5ce0a55c1b33314309ab857d305a0e58b (diff) | |
| download | mu-1a4de9dd58201bb57a07ea931d1764064fc52e64.tar.gz | |
4588
Diffstat (limited to 'html/subx/015immediate_addressing.cc.html')
| -rw-r--r-- | html/subx/015immediate_addressing.cc.html | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/html/subx/015immediate_addressing.cc.html b/html/subx/015immediate_addressing.cc.html index e3d4b190..bb282579 100644 --- a/html/subx/015immediate_addressing.cc.html +++ b/html/subx/015immediate_addressing.cc.html @@ -84,7 +84,7 @@ if ('onhashchange' in window) { <span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"combine imm32 with r/m32"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L21" class="LineNr"> 21 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> <span id="L22" class="LineNr"> 22 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L23" class="LineNr"> 23 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> <span id="L26" class="LineNr"> 26 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -131,7 +131,7 @@ if ('onhashchange' in window) { <span id="L67" class="LineNr"> 67 </span> <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L69" class="LineNr"> 69 </span><span class="Normal">case</span> <span class="Constant">0x2d</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract imm32 from EAX</span> -<span id="L70" class="LineNr"> 70 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" from EAX"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L72" class="LineNr"> 72 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L73" class="LineNr"> 73 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -189,7 +189,7 @@ if ('onhashchange' in window) { <span id="L125" class="LineNr">125 </span> <span id="L126" class="LineNr">126 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L127" class="LineNr">127 </span><span class="Normal">case</span> <span class="Constant">0x25</span>: <span class="Delimiter">{</span> <span class="Comment">// and imm32 with EAX</span> -<span id="L128" class="LineNr">128 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L128" class="LineNr">128 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L129" class="LineNr">129 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L130" class="LineNr">130 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L131" class="LineNr">131 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -247,7 +247,7 @@ if ('onhashchange' in window) { <span id="L183" class="LineNr">183 </span> <span id="L184" class="LineNr">184 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L185" class="LineNr">185 </span><span class="Normal">case</span> <span class="Constant">0x0d</span>: <span class="Delimiter">{</span> <span class="Comment">// or imm32 with EAX</span> -<span id="L186" class="LineNr">186 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L186" class="LineNr">186 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L188" class="LineNr">188 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L189" class="LineNr">189 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -303,7 +303,7 @@ if ('onhashchange' in window) { <span id="L239" class="LineNr">239 </span> <span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L241" class="LineNr">241 </span><span class="Normal">case</span> <span class="Constant">0x35</span>: <span class="Delimiter">{</span> <span class="Comment">// xor imm32 with EAX</span> -<span id="L242" class="LineNr">242 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L242" class="LineNr">242 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L244" class="LineNr">244 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L245" class="LineNr">245 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -347,7 +347,7 @@ if ('onhashchange' in window) { <span id="L283" class="LineNr">283 </span><span class="SalientComment">//:: compare (cmp)</span> <span id="L284" class="LineNr">284 </span> <span id="L285" class="LineNr">285 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L286" class="LineNr">286 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">"subtract imm32 from R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L286" class="LineNr">286 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if R0 < imm32"</span><span class="Delimiter">);</span> <span id="L287" class="LineNr">287 </span> <span id="L288" class="LineNr">288 </span><span class="Delimiter">:(scenario compare_imm32_with_eax_greater)</span> <span id="L289" class="LineNr">289 </span><span class="Special">% Reg[EAX].i = 0x0d0c0b0a;</span> @@ -358,9 +358,9 @@ if ('onhashchange' in window) { <span id="L294" class="LineNr">294 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> <span id="L295" class="LineNr">295 </span> <span id="L296" class="LineNr">296 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L297" class="LineNr">297 </span><span class="Normal">case</span> <span class="Constant">0x3d</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract imm32 from EAX</span> +<span id="L297" class="LineNr">297 </span><span class="Normal">case</span> <span class="Constant">0x3d</span>: <span class="Delimiter">{</span> <span class="Comment">// compare EAX with imm32</span> <span id="L298" class="LineNr">298 </span> <span class="Normal">int32_t</span> arg1 = Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> -<span id="L299" class="LineNr">299 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L300" class="LineNr">300 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare <a href='010---vm.cc.html#L13'>EAX</a> and imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L301" class="LineNr">301 </span> <span class="Normal">int32_t</span> tmp1 = arg1 - arg2<span class="Delimiter">;</span> <span id="L302" class="LineNr">302 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> @@ -502,7 +502,7 @@ if ('onhashchange' in window) { <span id="L438" class="LineNr">438 </span><span class="Normal">case</span> <span class="Constant">0xbe</span>: <span id="L439" class="LineNr">439 </span><span class="Normal">case</span> <span class="Constant">0xbf</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to r32</span> <span id="L440" class="LineNr">440 </span> <span class="Normal">uint8_t</span> reg1 = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L441" class="LineNr">441 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L441" class="LineNr">441 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L442" class="LineNr">442 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" to "</span> << <a href='013direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L443" class="LineNr">443 </span> Reg[reg1]<span class="Delimiter">.</span>i = arg2<span class="Delimiter">;</span> <span id="L444" class="LineNr">444 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -528,7 +528,7 @@ if ('onhashchange' in window) { <span id="L464" class="LineNr">464 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> <span id="L465" class="LineNr">465 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 to r/m32"</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L466" class="LineNr">466 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L467" class="LineNr">467 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L299'>next32</a><span class="Delimiter">();</span> +<span id="L467" class="LineNr">467 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L302'>next32</a><span class="Delimiter">();</span> <span id="L468" class="LineNr">468 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L469" class="LineNr">469 </span> *arg1 = arg2<span class="Delimiter">;</span> <span id="L470" class="LineNr">470 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -544,16 +544,16 @@ if ('onhashchange' in window) { <span id="L480" class="LineNr">480 </span>== <span class="Constant">0x1</span> <span id="L481" class="LineNr">481 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L482" class="LineNr">482 </span> <span class="Constant">68</span> af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># push *EAX to stack</span> -<span id="L483" class="LineNr">483 </span><span class="traceContains">+run: <a href='012elf.cc.html#L84'>push</a> imm32 0x000000af</span> +<span id="L483" class="LineNr">483 </span><span class="traceContains">+run: <a href='012elf.cc.html#L85'>push</a> imm32 0x000000af</span> <span id="L484" class="LineNr">484 </span><span class="traceContains">+run: <a href='010---vm.cc.html#L17'>ESP</a> is now 0x00000010</span> <span id="L485" class="LineNr">485 </span><span class="traceContains">+run: <a href='003trace.cc.html#L74'>contents</a> at <a href='010---vm.cc.html#L17'>ESP</a>: 0x000000af</span> <span id="L486" class="LineNr">486 </span> <span id="L487" class="LineNr">487 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L488" class="LineNr">488 </span><span class="Normal">case</span> <span class="Constant">0x68</span>: <span class="Delimiter">{</span> -<span id="L489" class="LineNr">489 </span> <span class="Normal">uint32_t</span> val = <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L299'>next32</a><span class="Delimiter">());</span> +<span id="L489" class="LineNr">489 </span> <span class="Normal">uint32_t</span> val = <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L302'>next32</a><span class="Delimiter">());</span> <span id="L490" class="LineNr">490 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << val << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L491" class="LineNr">491 </span><span class="CommentedCode">//? cerr << "push: " << val << " => " << Reg[ESP].u << '\n';</span> -<span id="L492" class="LineNr">492 </span> <a href='012elf.cc.html#L84'>push</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L492" class="LineNr">492 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> <span id="L493" class="LineNr">493 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L494" class="LineNr">494 </span> <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"contents at <a href='010---vm.cc.html#L17'>ESP</a>: 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span> <span id="L495" class="LineNr">495 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> |