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-rw-r--r--src/arch/x86/isa/microops/regop.isa2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa
index ceecfbf1c..fd2a3a64f 100644
--- a/src/arch/x86/isa/microops/regop.isa
+++ b/src/arch/x86/isa/microops/regop.isa
@@ -921,7 +921,7 @@ let {{
'''
class Zext(RegOp):
- code = 'DestReg = bits(psrc1, op2, 0);'
+ code = 'DestReg = merge(DestReg, bits(psrc1, op2, 0), dataSize);'
class Rddr(RegOp):
def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"):