diff options
Diffstat (limited to 'html/subx/036global_variables.cc.html')
| -rw-r--r-- | html/subx/036global_variables.cc.html | 200 |
1 files changed, 99 insertions, 101 deletions
diff --git a/html/subx/036global_variables.cc.html b/html/subx/036global_variables.cc.html index e4b6f75b..f5e53a17 100644 --- a/html/subx/036global_variables.cc.html +++ b/html/subx/036global_variables.cc.html @@ -21,12 +21,12 @@ a:hover { text-decoration: underline; } .LineNr { color: #444444; } .Constant { color: #00a0a0; } .Delimiter { color: #800080; } -.Special { color: #c00000; } +.SalientComment { color: #00ffff; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } -.SalientComment { color: #00ffff; } +.Special { color: #c00000; } .PreProc { color: #800080; } --> </style> @@ -68,84 +68,84 @@ if ('onhashchange' in window) { <span id="L4" class="LineNr"> 4 </span><span class="Comment">//: However, they can only be used in imm32 and not disp32 operands. And they</span> <span id="L5" class="LineNr"> 5 </span><span class="Comment">//: can't be used with jump and call instructions.</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment">//:</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: This layer much the same structure as rewriting labels.</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: This layer has much the same structure as rewriting labels.</span> <span id="L8" class="LineNr"> 8 </span> <span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(scenario global_variable)</span> -<span id="L10" class="LineNr"> 10 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L11" class="LineNr"> 11 </span><span class="Special">% Mem.resize(0x2000);</span> -<span id="L12" class="LineNr"> 12 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L13" class="LineNr"> 13 </span>b9/copy x/imm32 <span class="Comment"># copy to ECX</span> -<span id="L14" class="LineNr"> 14 </span>== <a href='011run.cc.html#L125'>data</a> -<span id="L15" class="LineNr"> 15 </span><span class="Normal">x</span>: -<span id="L16" class="LineNr"> 16 </span><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="PreProc">0</span><span class="Constant">0</span> -<span id="L17" class="LineNr"> 17 </span><span class="traceContains">+transform: global variable 'x' is at address 0x08049079</span> -<span id="L18" class="LineNr"> 18 </span> -<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> -<span id="L20" class="LineNr"> 20 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L22'>rewrite_global_variables</a><span class="Delimiter">);</span> -<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">:(code)</span> -<span id="L22" class="LineNr"> 22 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L22'>rewrite_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L23" class="LineNr"> 23 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite global variables"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L24" class="LineNr"> 24 </span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>> address<span class="Delimiter">;</span> -<span id="L25" class="LineNr"> 25 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L27" class="LineNr"> 27 </span> <a href='036global_variables.cc.html#L60'>drop_global_variables</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> -<span id="L28" class="LineNr"> 28 </span> <a href='036global_variables.cc.html#L65'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> -<span id="L29" class="LineNr"> 29 </span><span class="Delimiter">}</span> -<span id="L30" class="LineNr"> 30 </span> -<span id="L31" class="LineNr"> 31 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr"> 32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L33" class="LineNr"> 33 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> address<span class="Delimiter">);</span> -<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">}</span> -<span id="L35" class="LineNr"> 35 </span> -<span id="L36" class="LineNr"> 36 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L37" class="LineNr"> 37 </span> <span class="Normal">int</span> current_address = s<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> -<span id="L38" class="LineNr"> 38 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L39" class="LineNr"> 39 </span> <span class="Normal">const</span> line& inst = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L40" class="LineNr"> 40 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L41" class="LineNr"> 41 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L43" class="LineNr"> 43 </span> ++current_address<span class="Delimiter">;</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">}</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L46" class="LineNr"> 46 </span> string variable = <a href='035labels.cc.html#L166'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L47" class="LineNr"> 47 </span> <span class="Comment">// ensure variables look sufficiently different from raw hex</span> -<span id="L48" class="LineNr"> 48 </span> <a href='035labels.cc.html#L21'>check_valid_name</a><span class="Delimiter">(</span>variable<span class="Delimiter">);</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> -<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': global variable names can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L52" class="LineNr"> 52 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> variable<span class="Delimiter">,</span> current_address<span class="Delimiter">);</span> -<span id="L53" class="LineNr"> 53 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"global variable '"</span> << variable << <span class="Constant">"' is at address 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << current_address << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L54" class="LineNr"> 54 </span> <span class="Comment">// no modifying current_address; global variable definitions won't be in the final binary</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">}</span> -<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> -<span id="L57" class="LineNr"> 57 </span> <span class="Delimiter">}</span> -<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> -<span id="L59" class="LineNr"> 59 </span> -<span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L60'>drop_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L61" class="LineNr"> 61 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L62" class="LineNr"> 62 </span> <a href='035labels.cc.html#L110'>drop_labels</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> -<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span> -<span id="L64" class="LineNr"> 64 </span> -<span id="L65" class="LineNr"> 65 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L65'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L67" class="LineNr"> 67 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L69" class="LineNr"> 69 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L70" class="LineNr"> 70 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L10" class="LineNr"> 10 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L11" class="LineNr"> 11 </span>b9/copy x/imm32 <span class="Comment"># copy to ECX</span> +<span id="L12" class="LineNr"> 12 </span>== data +<span id="L13" class="LineNr"> 13 </span><span class="Normal">x</span>: +<span id="L14" class="LineNr"> 14 </span><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="PreProc">0</span><span class="Constant">0</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+transform: global variable 'x' is at address 0x08049079</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> +<span id="L18" class="LineNr"> 18 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L20'>rewrite_global_variables</a><span class="Delimiter">);</span> +<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(code)</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L20'>rewrite_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite global variables"</span> << end<span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>> address<span class="Delimiter">;</span> +<span id="L23" class="LineNr"> 23 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> <a href='036global_variables.cc.html#L58'>drop_global_variables</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <a href='036global_variables.cc.html#L63'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">}</span> +<span id="L28" class="LineNr"> 28 </span> +<span id="L29" class="LineNr"> 29 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L31" class="LineNr"> 31 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> address<span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">int</span> current_address = s<span class="Delimiter">.</span>start<span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">const</span> line& inst = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L41" class="LineNr"> 41 </span> ++current_address<span class="Delimiter">;</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Delimiter">}</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L44" class="LineNr"> 44 </span> string variable = <a href='035labels.cc.html#L198'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment">// ensure variables look sufficiently different from raw hex</span> +<span id="L46" class="LineNr"> 46 </span> <a href='035labels.cc.html#L52'>check_valid_name</a><span class="Delimiter">(</span>variable<span class="Delimiter">);</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': global variable names can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> variable<span class="Delimiter">,</span> current_address<span class="Delimiter">);</span> +<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"global variable '"</span> << variable << <span class="Constant">"' is at address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << current_address << end<span class="Delimiter">();</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment">// no modifying current_address; global variable definitions won't be in the final binary</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Delimiter">}</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Delimiter">}</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">}</span> +<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">}</span> +<span id="L57" class="LineNr"> 57 </span> +<span id="L58" class="LineNr"> 58 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L58'>drop_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L60" class="LineNr"> 60 </span> <a href='035labels.cc.html#L142'>drop_labels</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span> +<span id="L63" class="LineNr"> 63 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L63'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L65" class="LineNr"> 65 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L67" class="LineNr"> 67 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L68" class="LineNr"> 68 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L71" class="LineNr"> 71 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!looks_like_hex_int<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> +<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"missing reference to global '"</span> << curr<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L74" class="LineNr"> 74 </span> new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> <span id="L75" class="LineNr"> 75 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span> <span id="L77" class="LineNr"> 77 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!valid_use_of_global_variable<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L78" class="LineNr"> 78 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': can't refer to global variable '"</span> << curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L78" class="LineNr"> 78 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': can't refer to global variable '"</span> << curr<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L79" class="LineNr"> 79 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span> -<span id="L81" class="LineNr"> 81 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> get<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">),</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L81" class="LineNr"> 81 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> get<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">),</span> <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> <span id="L83" class="LineNr"> 83 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> -<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L209'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L231'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> <span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span> <span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span> <span id="L87" class="LineNr"> 87 </span> @@ -159,7 +159,7 @@ if ('onhashchange' in window) { <span id="L95" class="LineNr"> 95 </span><span class="Comment">//: requires first saving some data early before we pack operands</span> <span id="L96" class="LineNr"> 96 </span> <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(after "Begin Level-2 Transforms")</span> -<span id="L98" class="LineNr"> 98 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">);</span> +<span id="L98" class="LineNr"> 98 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">);</span> <span id="L99" class="LineNr"> 99 </span><span class="Delimiter">:(code)</span> <span id="L100" class="LineNr">100 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> @@ -192,7 +192,7 @@ if ('onhashchange' in window) { <span id="L128" class="LineNr">128 </span><span class="Special">% Hide_errors = true;</span> <span id="L129" class="LineNr">129 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span id="L130" class="LineNr">130 </span>eb/jump x/disp8 -<span id="L131" class="LineNr">131 </span>== <a href='011run.cc.html#L125'>data</a> +<span id="L131" class="LineNr">131 </span>== data <span id="L132" class="LineNr">132 </span><span class="Normal">x</span>: <span id="L133" class="LineNr">133 </span><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="PreProc">0</span><span class="Constant">0</span> <span id="L134" class="LineNr">134 </span><span class="traceContains">+error: 'eb/jump x/disp8': can't refer to global variable 'x'</span> @@ -203,7 +203,7 @@ if ('onhashchange' in window) { <span id="L139" class="LineNr">139 </span><span class="Special">% Hide_errors = true;</span> <span id="L140" class="LineNr">140 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span id="L141" class="LineNr">141 </span>e8/call x/disp32 -<span id="L142" class="LineNr">142 </span>== <a href='011run.cc.html#L125'>data</a> +<span id="L142" class="LineNr">142 </span>== data <span id="L143" class="LineNr">143 </span><span class="Normal">x</span>: <span id="L144" class="LineNr">144 </span><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="PreProc">0</span><span class="Constant">0</span> <span id="L145" class="LineNr">145 </span><span class="traceContains">+error: 'e8/call x/disp32': can't refer to global variable 'x'</span> @@ -211,34 +211,32 @@ if ('onhashchange' in window) { <span id="L147" class="LineNr">147 </span><span class="CommentedCode">#? +error: can't call to the data segment ('x')</span> <span id="L148" class="LineNr">148 </span> <span id="L149" class="LineNr">149 </span><span class="Delimiter">:(scenario disp32_data_with_modrm)</span> -<span id="L150" class="LineNr">150 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L151" class="LineNr">151 </span><span class="Special">% Mem.resize(0x2000);</span> -<span id="L152" class="LineNr">152 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L153" class="LineNr">153 </span>8b/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">5</span>/rm32/<span class="Delimiter">.</span>disp32 <span class="Constant">2</span>/r32/EDX x/disp32 -<span id="L154" class="LineNr">154 </span>== -<span id="L155" class="LineNr">155 </span><span class="Normal">x</span>: -<span id="L156" class="LineNr">156 </span><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="PreProc">0</span><span class="Constant">0</span> -<span id="L157" class="LineNr">157 </span>$error: <span class="Constant">0</span> -<span id="L158" class="LineNr">158 </span> -<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(scenario disp32_data_with_call)</span> -<span id="L161" class="LineNr">161 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L162" class="LineNr">162 </span><span class="Normal">foo</span>: -<span id="L163" class="LineNr">163 </span>e8/call bar/disp32 -<span id="L164" class="LineNr">164 </span><span class="Normal">bar</span>: -<span id="L165" class="LineNr">165 </span>$error: <span class="Constant">0</span> -<span id="L166" class="LineNr">166 </span> -<span id="L167" class="LineNr">167 </span><span class="Delimiter">:(code)</span> -<span id="L168" class="LineNr">168 </span>string to_full_string<span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L169" class="LineNr">169 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L170" class="LineNr">170 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L171" class="LineNr">171 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> -<span id="L172" class="LineNr">172 </span> out << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L173" class="LineNr">173 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> -<span id="L174" class="LineNr">174 </span> out << <span class="Constant">'/'</span> << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> -<span id="L176" class="LineNr">176 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> +<span id="L150" class="LineNr">150 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L151" class="LineNr">151 </span>8b/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">5</span>/rm32/<span class="Delimiter">.</span>disp32 <span class="Constant">2</span>/r32/EDX x/disp32 +<span id="L152" class="LineNr">152 </span>== data +<span id="L153" class="LineNr">153 </span><span class="Normal">x</span>: +<span id="L154" class="LineNr">154 </span><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="PreProc">0</span><span class="Constant">0</span> +<span id="L155" class="LineNr">155 </span>$error: <span class="Constant">0</span> +<span id="L156" class="LineNr">156 </span> +<span id="L157" class="LineNr">157 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L158" class="LineNr">158 </span><span class="Delimiter">:(scenario disp32_data_with_call)</span> +<span id="L159" class="LineNr">159 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L160" class="LineNr">160 </span><span class="Normal">foo</span>: +<span id="L161" class="LineNr">161 </span>e8/call bar/disp32 +<span id="L162" class="LineNr">162 </span><span class="Normal">bar</span>: +<span id="L163" class="LineNr">163 </span>$error: <span class="Constant">0</span> +<span id="L164" class="LineNr">164 </span> +<span id="L165" class="LineNr">165 </span><span class="Delimiter">:(code)</span> +<span id="L166" class="LineNr">166 </span>string to_full_string<span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L167" class="LineNr">167 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L168" class="LineNr">168 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L169" class="LineNr">169 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L170" class="LineNr">170 </span> out << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span> +<span id="L171" class="LineNr">171 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> +<span id="L172" class="LineNr">172 </span> out << <span class="Constant">'/'</span> << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L173" class="LineNr">173 </span> <span class="Delimiter">}</span> +<span id="L174" class="LineNr">174 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L175" class="LineNr">175 </span><span class="Delimiter">}</span> </pre> </body> </html> |