diff options
Diffstat (limited to 'target/s390x/fpu_helper.c')
| -rw-r--r-- | target/s390x/fpu_helper.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/target/s390x/fpu_helper.c b/target/s390x/fpu_helper.c index 906280bfcd..e258f20aa9 100644 --- a/target/s390x/fpu_helper.c +++ b/target/s390x/fpu_helper.c @@ -317,10 +317,14 @@ uint64_t HELPER(ldeb)(CPUS390XState *env, uint64_t f2) } /* convert 128-bit float to 64-bit float */ -uint64_t HELPER(ldxb)(CPUS390XState *env, uint64_t ah, uint64_t al) +uint64_t HELPER(ldxb)(CPUS390XState *env, uint64_t ah, uint64_t al, + uint32_t m34) { + int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); float64 ret = float128_to_float64(make_float128(ah, al), &env->fpu_status); - handle_exceptions(env, false, GETPC()); + + s390_restore_bfp_rounding_mode(env, old_mode); + handle_exceptions(env, xxc_from_m34(m34), GETPC()); return ret; } @@ -341,18 +345,25 @@ uint64_t HELPER(lxeb)(CPUS390XState *env, uint64_t f2) } /* convert 64-bit float to 32-bit float */ -uint64_t HELPER(ledb)(CPUS390XState *env, uint64_t f2) +uint64_t HELPER(ledb)(CPUS390XState *env, uint64_t f2, uint32_t m34) { + int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); float32 ret = float64_to_float32(f2, &env->fpu_status); - handle_exceptions(env, false, GETPC()); + + s390_restore_bfp_rounding_mode(env, old_mode); + handle_exceptions(env, xxc_from_m34(m34), GETPC()); return ret; } /* convert 128-bit float to 32-bit float */ -uint64_t HELPER(lexb)(CPUS390XState *env, uint64_t ah, uint64_t al) +uint64_t HELPER(lexb)(CPUS390XState *env, uint64_t ah, uint64_t al, + uint32_t m34) { + int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34)); float32 ret = float128_to_float32(make_float128(ah, al), &env->fpu_status); - handle_exceptions(env, false, GETPC()); + + s390_restore_bfp_rounding_mode(env, old_mode); + handle_exceptions(env, xxc_from_m34(m34), GETPC()); return ret; } |