From: Johan Bengtsson <teofrast...@gmail.com>
The thumb2 decoder contained a mixup between the bit controlling
doubling and the bit controlling if the operation was an add or a sub.
Signed-off-by: Johan Bengtsson <teofrast...@gmail.com>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
target-arm/translate.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 183928b..947de6d 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -7713,9 +7713,9 @@ static int disas_thumb2_insn(CPUState *env, DisasContext
*s, uint16_t insn_hw1)
/* Saturating add/subtract. */
tmp = load_reg(s, rn);
tmp2 = load_reg(s, rm);
- if (op & 2)
- gen_helper_double_saturate(tmp, tmp);
if (op & 1)
+ gen_helper_double_saturate(tmp, tmp);
+ if (op & 2)
gen_helper_sub_saturate(tmp, tmp2, tmp);
else
gen_helper_add_saturate(tmp, tmp, tmp2);
--
1.6.3.3
