diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-11-26 01:19:47 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-11-26 01:19:47 -0800 |
| commit | d1c9392a5461e0d33e226375a8f7986a97d2d66b (patch) | |
| tree | 494c19edbe1d1522344b56ced6aa7c040ad37406 /html/subx/021byte_addressing.cc.html | |
| parent | 7e00968c99f97e13be8f5269feaf7fd1d33ecd33 (diff) | |
| download | mu-d1c9392a5461e0d33e226375a8f7986a97d2d66b.tar.gz | |
4782
Diffstat (limited to 'html/subx/021byte_addressing.cc.html')
| -rw-r--r-- | html/subx/021byte_addressing.cc.html | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/html/subx/021byte_addressing.cc.html b/html/subx/021byte_addressing.cc.html index a6b00dc7..f9f9e055 100644 --- a/html/subx/021byte_addressing.cc.html +++ b/html/subx/021byte_addressing.cc.html @@ -88,18 +88,18 @@ if ('onhashchange' in window) { <span id="L27" class="LineNr"> 27 </span> <span class="Identifier">return</span> <a href='021byte_addressing.cc.html#L33'>reg_8bit</a><span class="Delimiter">(</span>rm<span class="Delimiter">);</span> <span id="L28" class="LineNr"> 28 </span> <span class="Delimiter">}</span> <span id="L29" class="LineNr"> 29 </span> <span class="Comment">// the rest is as usual</span> -<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L208'>mem_addr_u8</a><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L217'>mem_addr_u8</a><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> <span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span> <span id="L32" class="LineNr"> 32 </span> <span id="L33" class="LineNr"> 33 </span><span class="Normal">uint8_t</span>* <a href='021byte_addressing.cc.html#L33'>reg_8bit</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L34" class="LineNr"> 34 </span> <span class="Normal">uint8_t</span>* result = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>&Reg[rm & <span class="Constant">0x3</span>]<span class="Delimiter">.</span>i<span class="Delimiter">);</span> <span class="Comment">// _L register</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Normal">uint8_t</span>* result = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>&<span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[rm & <span class="Constant">0x3</span>]<span class="Delimiter">.</span>i<span class="Delimiter">);</span> <span class="Comment">// _L register</span> <span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>rm & <span class="Constant">0x4</span><span class="Delimiter">)</span> <span id="L36" class="LineNr"> 36 </span> ++result<span class="Delimiter">;</span> <span class="Comment">// _H register; assumes host is little-endian</span> <span id="L37" class="LineNr"> 37 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L38" class="LineNr"> 38 </span><span class="Delimiter">}</span> <span id="L39" class="LineNr"> 39 </span> <span id="L40" class="LineNr"> 40 </span><span class="Delimiter">:(before "End Initialize Op Names")</span> -<span id="L41" class="LineNr"> 41 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L369'>Name</a><span class="Delimiter">,</span> <span class="Constant">"88"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8 to r8/m8-at-r32"</span><span class="Delimiter">);</span> +<span id="L41" class="LineNr"> 41 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"88"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8 to r8/m8-at-r32"</span><span class="Delimiter">);</span> <span id="L42" class="LineNr"> 42 </span> <span id="L43" class="LineNr"> 43 </span><span class="Delimiter">:(scenario copy_r8_to_mem_at_r32)</span> <span id="L44" class="LineNr"> 44 </span><span class="Special">% Reg[EBX].i = 0x224488ab;</span> @@ -117,21 +117,21 @@ if ('onhashchange' in window) { <span id="L56" class="LineNr"> 56 </span> <span id="L57" class="LineNr"> 57 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L58" class="LineNr"> 58 </span><span class="Normal">case</span> <span class="Constant">0x88</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r8 to r/m8</span> -<span id="L59" class="LineNr"> 59 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L355'>next</a><span class="Delimiter">();</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">();</span> <span id="L60" class="LineNr"> 60 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> rsrc = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L61" class="LineNr"> 61 </span> <a href='003trace.cc.html#L203'>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 "</span> << <a href='021byte_addressing.cc.html#L7'>rname_8bit</a><span class="Delimiter">(</span>rsrc<span class="Delimiter">)</span> << <span class="Constant">" to r8/m8-at-r32"</span> << end<span class="Delimiter">();</span> <span id="L62" class="LineNr"> 62 </span> <span class="Comment">// use unsigned to zero-extend 8-bit value to 32 bits</span> <span id="L63" class="LineNr"> 63 </span> <span class="Normal">uint8_t</span>* dest = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span><a href='021byte_addressing.cc.html#L21'>effective_byte_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> <span id="L64" class="LineNr"> 64 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span>* src = <a href='021byte_addressing.cc.html#L33'>reg_8bit</a><span class="Delimiter">(</span>rsrc<span class="Delimiter">);</span> <span id="L65" class="LineNr"> 65 </span> *dest = *src<span class="Delimiter">;</span> -<span id="L66" class="LineNr"> 66 </span> <a href='003trace.cc.html#L203'>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">"storing 0x"</span> << <a href='010---vm.cc.html#L403'>HEXBYTE</a> << <a href='010---vm.cc.html#L406'>NUM</a><span class="Delimiter">(</span>*dest<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L66" class="LineNr"> 66 </span> <a href='003trace.cc.html#L203'>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">"storing 0x"</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>*dest<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L67" class="LineNr"> 67 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span> <span id="L69" class="LineNr"> 69 </span> <span id="L70" class="LineNr"> 70 </span><span class="Comment">//:</span> <span id="L71" class="LineNr"> 71 </span> <span id="L72" class="LineNr"> 72 </span><span class="Delimiter">:(before "End Initialize Op Names")</span> -<span id="L73" class="LineNr"> 73 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L369'>Name</a><span class="Delimiter">,</span> <span class="Constant">"8a"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8/m8-at-r32 to r8"</span><span class="Delimiter">);</span> +<span id="L73" class="LineNr"> 73 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"8a"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8/m8-at-r32 to r8"</span><span class="Delimiter">);</span> <span id="L74" class="LineNr"> 74 </span> <span id="L75" class="LineNr"> 75 </span><span class="Delimiter">:(scenario copy_mem_at_r32_to_r8)</span> <span id="L76" class="LineNr"> 76 </span><span class="Special">% Reg[EBX].i = 0xaabbcc0f; // one nibble each of lowest byte set to all 0s and all 1s, to maximize value of this test</span> @@ -150,16 +150,16 @@ if ('onhashchange' in window) { <span id="L89" class="LineNr"> 89 </span> <span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L91" class="LineNr"> 91 </span><span class="Normal">case</span> <span class="Constant">0x8a</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r/m8 to r8</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L355'>next</a><span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">();</span> <span id="L93" class="LineNr"> 93 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> rdest = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L94" class="LineNr"> 94 </span> <a href='003trace.cc.html#L203'>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 r8/m8-at-r32 to "</span> << <a href='021byte_addressing.cc.html#L7'>rname_8bit</a><span class="Delimiter">(</span>rdest<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L95" class="LineNr"> 95 </span> <span class="Comment">// use unsigned to zero-extend 8-bit value to 32 bits</span> <span id="L96" class="LineNr"> 96 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span>* src = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span><a href='021byte_addressing.cc.html#L21'>effective_byte_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> <span id="L97" class="LineNr"> 97 </span> <span class="Normal">uint8_t</span>* dest = <a href='021byte_addressing.cc.html#L33'>reg_8bit</a><span class="Delimiter">(</span>rdest<span class="Delimiter">);</span> -<span id="L98" class="LineNr"> 98 </span> <a href='003trace.cc.html#L203'>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">"storing 0x"</span> << <a href='010---vm.cc.html#L403'>HEXBYTE</a> << <a href='010---vm.cc.html#L406'>NUM</a><span class="Delimiter">(</span>*src<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L98" class="LineNr"> 98 </span> <a href='003trace.cc.html#L203'>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">"storing 0x"</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>*src<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L99" class="LineNr"> 99 </span> *dest = *src<span class="Delimiter">;</span> <span id="L100" class="LineNr">100 </span> <span class="Normal">const</span> <span class="Normal">uint8_t</span> rdest_32bit = rdest & <span class="Constant">0x3</span><span class="Delimiter">;</span> -<span id="L101" class="LineNr">101 </span> <a href='003trace.cc.html#L203'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rdest_32bit<span class="Delimiter">)</span> << <span class="Constant">" now contains 0x"</span> << <a href='010---vm.cc.html#L404'>HEXWORD</a> << Reg[rdest_32bit]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L101" class="LineNr">101 </span> <a href='003trace.cc.html#L203'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rdest_32bit<span class="Delimiter">)</span> << <span class="Constant">" now contains 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[rdest_32bit]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L102" class="LineNr">102 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L103" class="LineNr">103 </span><span class="Delimiter">}</span> <span id="L104" class="LineNr">104 </span> |