// Bitfield definitions.
//
-//Prefixes
+//REX prefix
def bitfield REX rex;
+def bitfield REX_W rex.w;
+def bitfield REX_R rex.r;
+def bitfield REX_X rex.x;
+def bitfield REX_B rex.b;
+
+//Legacy prefixes
def bitfield LEGACY legacy;
+def bitfield LEGACY_REPNE legacy.repne;
+def bitfield LEGACY_REP legacy.rep;
+def bitfield LEGACY_LOCK legacy.lock;
+def bitfield LEGACY_ADDR legacy.addr;
+def bitfield LEGACY_OP legacy.op;
+def bitfield LEGACY_SEG legacy.seg;
// Pieces of the opcode
def bitfield OPCODE_NUM opcode.num;