Revision: 2540
Author: [email protected]
Date: Mon Jul 27 03:39:46 2009
Log: X64: Add mov rax,(mem64) to disassembler.
Review URL: http://codereview.chromium.org/159397
http://code.google.com/p/v8/source/detail?r=2540
Modified:
/branches/bleeding_edge/src/x64/disasm-x64.cc
=======================================
--- /branches/bleeding_edge/src/x64/disasm-x64.cc Fri Jul 24 04:22:35 2009
+++ /branches/bleeding_edge/src/x64/disasm-x64.cc Mon Jul 27 03:39:46 2009
@@ -1343,6 +1343,39 @@
data += 2;
break;
+ case 0xA1: // Fall through.
+ case 0xA3:
+ switch (operand_size()) {
+ case DOUBLEWORD_SIZE: {
+ const char* memory_location = NameOfAddress(
+ reinterpret_cast<byte*>(
+ *reinterpret_cast<int32_t*>(data + 1)));
+ if (*data & 0x2 == 0x2) { // Opcode 0xA3
+ AppendToBuffer("movzxlq rax,(%s)", memory_location);
+ } else { // Opcode 0xA1
+ AppendToBuffer("movzxlq (%s),rax", memory_location);
+ }
+ data += 5;
+ break;
+ }
+ case QUADWORD_SIZE: {
+ // New x64 instruction mov rax,(imm_64).
+ const char* memory_location = NameOfAddress(
+ *reinterpret_cast<byte**>(data + 1));
+ if (*data & 0x2 == 0x2) { // Opcode 0xA3
+ AppendToBuffer("movq rax,(%s)", memory_location);
+ } else { // Opcode 0xA1
+ AppendToBuffer("movq (%s),rax", memory_location);
+ }
+ data += 9;
+ break;
+ }
+ default:
+ UnimplementedInstruction();
+ data += 2;
+ }
+ break;
+
case 0xA8:
AppendToBuffer("test al,0x%x", *reinterpret_cast<uint8_t*>(data +
1));
data += 2;
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