X86: Add a bitfield to indicate whether or not an REX prefix was present.

--HG--
extra : convert_revision : 9c4802f6c6e4eaab36aac900e2c7576682cb0f33

diff --git a/src/arch/x86/isa/bitfields.isa b/src/arch/x86/isa/bitfields.isa
index 43fee5fef2abc2f658232060b1ac18d230bf0959..fb082f683cc119275e9d0b0ed74954b319534453 100644 (file)
--- a/src/arch/x86/isa/bitfields.isa
+++ b/src/arch/x86/isa/bitfields.isa
@@ -60,6 +60,7 @@
 
 //REX prefix
 def bitfield REX rex;
+def bitfield REX_PRESENT rex.present;
 def bitfield REX_W rex.w;
 def bitfield REX_R rex.r;
 def bitfield REX_X rex.x;