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-rw-r--r--src/arch/x86/isa/bitfields.isa4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/arch/x86/isa/bitfields.isa b/src/arch/x86/isa/bitfields.isa
index a7753ba3d..e2751a8ef 100644
--- a/src/arch/x86/isa/bitfields.isa
+++ b/src/arch/x86/isa/bitfields.isa
@@ -59,9 +59,7 @@ def bitfield LEGACY_ADDR legacy.addr;
def bitfield LEGACY_SEG legacy.seg;
// Pieces of the opcode
-def bitfield OPCODE_NUM opcode.num;
-def bitfield OPCODE_PREFIXA opcode.prefixA;
-def bitfield OPCODE_PREFIXB opcode.prefixB;
+def bitfield OPCODE_TYPE opcode.type;
def bitfield OPCODE_OP opcode.op;
//The top 5 bits of the opcode tend to split the instructions into groups
def bitfield OPCODE_OP_TOP5 opcode.op.top5;