Add X86 bsf and rotate instructions

These are for use in new intrinsics.  Bsf (Bit Scan Forward) is used in
{Long,Integer}NumberOfTrailingZeros and the rotates are used in
{Long,Integer}Rotate{Left,Right}.

Change-Id: Icb599d7e1eec4e4ea9e5b4f0b1654c7b8d4de678
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/disassembler/disassembler_x86.cc b/disassembler/disassembler_x86.cc
index d4574f4f0a..d4bef0fe7b 100644
--- a/disassembler/disassembler_x86.cc
+++ b/disassembler/disassembler_x86.cc
@@ -928,6 +928,11 @@ DISASSEMBLER_ENTRY(cmp,
         has_modrm = true;
         load = true;
         break;
+      case 0xBC:
+        opcode1 = "bsf";
+        has_modrm = true;
+        load = true;
+        break;
       case 0xBD:
         opcode1 = "bsr";
         has_modrm = true;