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-rw-r--r--src/arch/x86/isa/insts/simd64/integer/data_transfer/move_mask.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/arch/x86/isa/insts/simd64/integer/data_transfer/move_mask.py b/src/arch/x86/isa/insts/simd64/integer/data_transfer/move_mask.py
index 558391c6a..11e670b40 100644
--- a/src/arch/x86/isa/insts/simd64/integer/data_transfer/move_mask.py
+++ b/src/arch/x86/isa/insts/simd64/integer/data_transfer/move_mask.py
@@ -54,5 +54,8 @@
# Authors: Gabe Black
microcode = '''
-# PMOVMSKB
+def macroop PMOVMSKB_R_MMX {
+ limm reg, 0
+ movsign reg, mmxm, size=1, ext=0
+};
'''