diff options
Diffstat (limited to 'target/arm/helper-a64.c')
| -rw-r--r-- | target/arm/helper-a64.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index b84ebcae6e..3e00a9ead1 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -506,8 +506,11 @@ static uint64_t do_paired_cmpxchg64_be(CPUARMState *env, uint64_t addr, Int128 oldv, cmpv, newv; bool success; - cmpv = int128_make128(env->exclusive_val, env->exclusive_high); - newv = int128_make128(new_lo, new_hi); + /* high and low need to be switched here because this is not actually a + * 128bit store but two doublewords stored consecutively + */ + cmpv = int128_make128(env->exclusive_high, env->exclusive_val); + newv = int128_make128(new_hi, new_lo); if (parallel) { #ifndef CONFIG_ATOMIC128 |