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-rw-r--r--powerpc/Asm.v4
1 files changed, 2 insertions, 2 deletions
diff --git a/powerpc/Asm.v b/powerpc/Asm.v
index 9c03558b..ab70072b 100644
--- a/powerpc/Asm.v
+++ b/powerpc/Asm.v
@@ -718,9 +718,9 @@ Definition exec_instr (c: code) (i: instruction) (rs: regset) (m: mem) : outcome
| Pstfdx rd r1 r2 =>
store2 Mfloat64 rd r1 r2 rs m
| Pstfs rd cst r1 =>
- store1 Mfloat32 rd cst r1 rs m
+ store1 Mfloat32 rd cst r1 (rs#FPR13 <- Vundef) m
| Pstfsx rd r1 r2 =>
- store2 Mfloat32 rd r1 r2 rs m
+ store2 Mfloat32 rd r1 r2 (rs#FPR13 <- Vundef) m
| Psth rd cst r1 =>
store1 Mint16unsigned rd cst r1 rs m
| Psthx rd r1 r2 =>