The overflow computation of nego and subf*o instructions has been broken
in commit ffe30937. This patch fixes it.
With this change the PPC emulation passes the Gwenole Beauchesne
testsuite again.
Cc: Alexander Graf <ag...@suse.de>
Cc: Richard Henderson <r...@twiddle.net>
Signed-off-by: Aurelien Jarno <aurel...@aurel32.net>
---
target-ppc/translate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5e741d1..062493a 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -749,7 +749,7 @@ static inline void gen_op_arith_compute_ov(DisasContext
*ctx, TCGv arg0,
tcg_gen_xor_tl(cpu_ov, arg0, arg1);
tcg_gen_xor_tl(t0, arg1, arg2);
if (sub) {
- tcg_gen_and_tl(cpu_ov, cpu_ov, t0);
+ tcg_gen_andc_tl(cpu_ov, t0, cpu_ov);
} else {
tcg_gen_andc_tl(cpu_ov, cpu_ov, t0);
}
--
1.7.10.4
