Support dec_b instruction in ia32 and x64 disassembler.

src/ia32/disasm-ia32.cc

Index: src/ia32/disasm-ia32.cc
===================================================================
--- src/ia32/disasm-ia32.cc	(revision 5514)
+++ src/ia32/disasm-ia32.cc	(working copy)
@@ -1194,12 +1194,12 @@
         { data++;
           int mod, regop, rm;
           get_modrm(*data, &mod, &regop, &rm);
-          if (mod == 3 && regop == ecx) {
-            AppendToBuffer("dec_b %s", NameOfCPURegister(rm));
+          if (regop == ecx) {
+            AppendToBuffer("dec_b ");
+            data += PrintRightOperand(data);

[antonm, 2010/09/23 19:23:09]

shouldn't that be PrintRightByteOperand?

[Vladislav Kaznacheev, 2010/09/23 19:29:24]

PrintRightByteOperand would print something like dec_b [cl] while we want dec_b
[ecx]
On 2010/09/23 19:23:09, antonm wrote:

           } else {
             UnimplementedInstruction();
           }
-          data++;
         }
         break;