diff options
Diffstat (limited to 'target-mips/op_helper.c')
| -rw-r--r-- | target-mips/op_helper.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c index 7f6e8217b2..69daade24e 100644 --- a/target-mips/op_helper.c +++ b/target-mips/op_helper.c @@ -2575,21 +2575,13 @@ void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t fs, uint32_t rt) ((arg1 & 0x4) << 22); break; case 31: - if (env->insn_flags & ISA_MIPS32R6) { - uint32_t mask = 0xfefc0000; - env->active_fpu.fcr31 = (arg1 & ~mask) | - (env->active_fpu.fcr31 & mask); - } else if (!(arg1 & 0x007c0000)) { - env->active_fpu.fcr31 = arg1; - } + env->active_fpu.fcr31 = (arg1 & env->active_fpu.fcr31_rw_bitmask) | + (env->active_fpu.fcr31 & ~(env->active_fpu.fcr31_rw_bitmask)); break; default: return; } - /* set rounding mode */ - restore_rounding_mode(env); - /* set flush-to-zero mode */ - restore_flush_mode(env); + restore_fp_status(env); set_float_exception_flags(0, &env->active_fpu.fp_status); if ((GET_FP_ENABLE(env->active_fpu.fcr31) | 0x20) & GET_FP_CAUSE(env->active_fpu.fcr31)) do_raise_exception(env, EXCP_FPE, GETPC()); |