Fix broken cases in x64 disassembler.

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 1168 matching lines @@
     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) {
+  } else if (opcode == 0x28) {
     // 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) {
+  } else if (opcode == 0x29) {
     // movaps xmm/m128, xmm
     int mod, regop, rm;
     get_modrm(*current, &mod, &regop, &rm);
-    AppendToBuffer("movaps");
+    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
+  } else if (opcode == 0x57) {
+    // xorps 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 ||
@@ skipping 596 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