Introduce orps for IA32/X64

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 1243 matching lines @@
     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 == 0x54) {
-    // xorps xmm, xmm/m128
+    // andps xmm, xmm/m128
     int mod, regop, rm;
     get_modrm(*current, &mod, &regop, &rm);
     AppendToBuffer("andps %s,", NameOfXMMRegister(regop));
     current += PrintRightXMMOperand(current);
 
+  } else if (opcode == 0x56) {
+    // orps xmm, xmm/m128
+    int mod, regop, rm;
+    get_modrm(*current, &mod, &regop, &rm);
+    AppendToBuffer("orps %s,", NameOfXMMRegister(regop));
+    current += PrintRightXMMOperand(current);
+
   } 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 == 0x50) {
     // movmskps reg, xmm
     int mod, regop, rm;
@@ skipping 612 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