Fix rounding in Uint8ClampedArray setter.

src/ia32/disasm-ia32.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 1454 matching lines @@
             data += 3;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             AppendToBuffer("cvtsd2ss %s,", NameOfXMMRegister(regop));
             data += PrintRightXMMOperand(data);
           } else {
             const char* mnem = "?";
             switch (b2) {
               case 0x2A: mnem = "cvtsi2sd"; break;
               case 0x2C: mnem = "cvttsd2si"; break;
+              case 0x2D: mnem = "cvtsd2si"; break;
               case 0x51: mnem = "sqrtsd"; break;
               case 0x58: mnem = "addsd"; break;
               case 0x59: mnem = "mulsd"; break;
               case 0x5C: mnem = "subsd"; break;
               case 0x5E: mnem = "divsd"; break;
             }
             data += 3;
             int mod, regop, rm;
             get_modrm(*data, &mod, &regop, &rm);
             if (b2 == 0x2A) {
               AppendToBuffer("%s %s,", mnem, NameOfXMMRegister(regop));
               data += PrintRightOperand(data);
-            } else if (b2 == 0x2C) {
+            } else if (b2 == 0x2C || b2 == 0x2D) {
               AppendToBuffer("%s %s,", mnem, NameOfCPURegister(regop));
               data += PrintRightXMMOperand(data);
             } else if (b2 == 0xC2) {
               // Intel manual 2A, Table 3-18.
               const char* const pseudo_op[] = {
                 "cmpeqsd",
                 "cmpltsd",
                 "cmplesd",
                 "cmpunordsd",
                 "cmpneqsd",
@@ skipping 201 matching lines @@
       fprintf(f, "  ");
     }
     fprintf(f, "  %s\n", buffer.start());
   }
 }
 
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_IA32