diff options
Diffstat (limited to 'target-s390x/int_helper.c')
| -rw-r--r-- | target-s390x/int_helper.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/target-s390x/int_helper.c b/target-s390x/int_helper.c index b683709860..4f18d29cd4 100644 --- a/target-s390x/int_helper.c +++ b/target-s390x/int_helper.c @@ -30,18 +30,11 @@ #endif /* 64/64 -> 128 unsigned multiplication */ -void HELPER(mlg)(CPUS390XState *env, uint32_t r1, uint64_t v2) +uint64_t HELPER(mul128)(CPUS390XState *env, uint64_t v1, uint64_t v2) { -#if HOST_LONG_BITS == 64 && defined(__GNUC__) - /* assuming 64-bit hosts have __uint128_t */ - __uint128_t res = (__uint128_t)env->regs[r1 + 1]; - - res *= (__uint128_t)v2; - env->regs[r1] = (uint64_t)(res >> 64); - env->regs[r1 + 1] = (uint64_t)res; -#else - mulu64(&env->regs[r1 + 1], &env->regs[r1], env->regs[r1 + 1], v2); -#endif + uint64_t reth; + mulu64(&env->retxl, &reth, v1, v2); + return reth; } /* 128 -> 64/64 unsigned division */ |