JMP reg64 does not require a REX.W prefix.
authorH. Peter Anvin <hpa@zytor.com>
Fri, 26 Sep 2008 06:42:28 +0000 (23:42 -0700)
committerH. Peter Anvin <hpa@zytor.com>
Fri, 26 Sep 2008 06:42:28 +0000 (23:42 -0700)
We were redundantly emitting a REX.W prefix for JMP reg64.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
insns.dat

index 94046ba..6f8dc44 100644 (file)
--- a/insns.dat
+++ b/insns.dat
@@ -645,7 +645,7 @@ JMP         mem32|near                      \321\1\xFF\204                                  386,NOLONG
 JMP            mem64|near                      \323\1\xFF\204                                  X64
 JMP            reg16                           \320\1\xFF\204                                  8086
 JMP            reg32                           \321\1\xFF\204                                  386,NOLONG
-JMP            reg64                           \324\1\xFF\204                                  X64
+JMP            reg64                           \323\1\xFF\204                                  X64
 JMP            mem                             \322\1\xFF\204                                  8086
 JMP            mem16                           \320\1\xFF\204                                  8086
 JMP            mem32                           \321\1\xFF\204                                  386,NOLONG