X64 tweaks.

src/x64/disasm-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1015 matching lines @@
          // roundsd xmm, xmm/m64, imm8
         AppendToBuffer("roundsd %s, ", NameOfCPURegister(regop));
         current += PrintRightOperand(current);
         AppendToBuffer(", %d", (*current) & 3);
         current += 1;
       } else {
         UnimplementedInstruction();
       }
     } else {
       get_modrm(*current, &mod, &regop, &rm);
-      if (opcode == 0x6E) {
+      if (opcode == 0x28) {
+        AppendToBuffer("movapd %s, ", NameOfXMMRegister(regop));
+        current += PrintRightXMMOperand(current);
+      } else if (opcode == 0x29) {
+        AppendToBuffer("movapd ");
+        current += PrintRightXMMOperand(current);
+        AppendToBuffer(", %s", NameOfXMMRegister(regop));
+      } else if (opcode == 0x6E) {
         AppendToBuffer("mov%c %s,",
                        rex_w() ? 'q' : 'd',
                        NameOfXMMRegister(regop));
         current += PrintRightOperand(current);
       } else if (opcode == 0x6F) {
         AppendToBuffer("movdqa %s,",
                        NameOfXMMRegister(regop));
         current += PrintRightXMMOperand(current);
       } else if (opcode == 0x7E) {
         AppendToBuffer("mov%c ",
                        rex_w() ? 'q' : 'd');
         current += PrintRightOperand(current);
         AppendToBuffer(", %s", NameOfXMMRegister(regop));
       } else if (opcode == 0x7F) {
         AppendToBuffer("movdqa ");
         current += PrintRightXMMOperand(current);
         AppendToBuffer(", %s", NameOfXMMRegister(regop));
+      } else if (opcode == 0xD6) {
+        AppendToBuffer("movq ");
+        current += PrintRightXMMOperand(current);
+        AppendToBuffer(", %s", NameOfXMMRegister(regop));
       } else {
         const char* mnemonic = "?";
         if (opcode == 0x50) {
           mnemonic = "movmskpd";
         } else  if (opcode == 0x54) {
           mnemonic = "andpd";
         } else  if (opcode == 0x56) {
           mnemonic = "orpd";
         } else  if (opcode == 0x57) {
           mnemonic = "xorpd";
@@ skipping 81 matching lines @@
       AppendToBuffer("cvttss2si%c %s,",
           operand_size_code(), NameOfCPURegister(regop));
       current += PrintRightXMMOperand(current);
     } else if (opcode == 0x5A) {
       // CVTSS2SD:
       // Convert scalar single-precision FP to scalar double-precision FP.
       int mod, regop, rm;
       get_modrm(*current, &mod, &regop, &rm);
       AppendToBuffer("cvtss2sd %s,", NameOfXMMRegister(regop));
       current += PrintRightXMMOperand(current);
+    } else if (opcode == 0x7E) {
+      int mod, regop, rm;
+      get_modrm(*current, &mod, &regop, &rm);
+      AppendToBuffer("movq %s, ", NameOfXMMRegister(regop));
+      current += PrintRightXMMOperand(current);
     } else {
       UnimplementedInstruction();
     }
   } else if (opcode == 0x1F) {
     // NOP
     int mod, regop, rm;
     get_modrm(*current, &mod, &regop, &rm);
     current++;
     if (regop == 4) {  // SIB byte present.
       current++;
     }
     if (mod == 1) {  // Byte displacement.
       current += 1;
     } else if (mod == 2) {  // 32-bit displacement.
       current += 4;
     }  // else no immediate displacement.
     AppendToBuffer("nop");
+
+  } else if (opcode == 28) {
+    // movaps xmm, xmm/m128
+    int mod, regop, rm;
+    get_modrm(*current, &mod, &regop, &rm);
+    AppendToBuffer("movaps %s, ", NameOfXMMRegister(regop));
+    current += PrintRightXMMOperand(current);
+
+  } else if (opcode == 29) {
+    // movaps xmm/m128, xmm
+    int mod, regop, rm;
+    get_modrm(*current, &mod, &regop, &rm);
+    AppendToBuffer("movaps");
+    current += PrintRightXMMOperand(current);
+    AppendToBuffer(", %s", NameOfXMMRegister(regop));
+
   } else if (opcode == 0xA2 || opcode == 0x31) {
     // RDTSC or CPUID
     AppendToBuffer("%s", mnemonic);
 
   } else if ((opcode & 0xF0) == 0x40) {
     // CMOVcc: conditional move.
     int condition = opcode & 0x0F;
     const InstructionDesc& idesc = cmov_instructions[condition];
     byte_size_operand_ = idesc.byte_size_operation;
     current += PrintOperands(idesc.mnem, idesc.op_order_, current);
 
+  } else if (opcode == 57) {
+    // xoprps xmm, xmm/m128
+    int mod, regop, rm;
+    get_modrm(*current, &mod, &regop, &rm);
+    AppendToBuffer("xorps %s, ", NameOfXMMRegister(regop));
+    current += PrintRightXMMOperand(current);
+
   } else if ((opcode & 0xF0) == 0x80) {
     // Jcc: Conditional jump (branch).
     current = data + JumpConditional(data);
 
   } else if (opcode == 0xBE || opcode == 0xBF || opcode == 0xB6 ||
              opcode == 0xB7 || opcode == 0xAF) {
     // Size-extending moves, IMUL.
     current += PrintOperands(mnemonic, REG_OPER_OP_ORDER, current);
 
   } else if ((opcode & 0xF0) == 0x90) {
@@ skipping 591 matching lines @@
     for (int i = 6 - static_cast<int>(pc - prev_pc); i >= 0; i--) {
       fprintf(f, "  ");
     }
     fprintf(f, "  %s\n", buffer.start());
   }
 }
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_X64