diff options
Diffstat (limited to 'target/ppc/fpu_helper.c')
| -rw-r--r-- | target/ppc/fpu_helper.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c index 16397ef393..8c8e3c5b13 100644 --- a/target/ppc/fpu_helper.c +++ b/target/ppc/fpu_helper.c @@ -2778,6 +2778,34 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \ VSX_CVT_FP_TO_FP_HP(xscvdphp, float64, float16, VsrD(0), VsrH(3)) VSX_CVT_FP_TO_FP_HP(xscvhpdp, float16, float64, VsrH(3), VsrD(0)) +/* + * xscvqpdp isn't using VSX_CVT_FP_TO_FP() because xscvqpdpo will be + * added to this later. + */ +void helper_xscvqpdp(CPUPPCState *env, uint32_t opcode) +{ + ppc_vsr_t xt, xb; + + getVSR(rB(opcode) + 32, &xb, env); + getVSR(rD(opcode) + 32, &xt, env); + + if (unlikely(Rc(opcode) != 0)) { + /* TODO: Support xscvqpdpo after round-to-odd is implemented */ + abort(); + } + + xt.VsrD(0) = float128_to_float64(xb.f128, &env->fp_status); + if (unlikely(float128_is_signaling_nan(xb.f128, + &env->fp_status))) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); + xt.VsrD(0) = float64_snan_to_qnan(xt.VsrD(0)); + } + helper_compute_fprf_float64(env, xt.VsrD(0)); + + putVSR(rD(opcode) + 32, &xt, env); + float_check_status(env); +} + uint64_t helper_xscvdpspn(CPUPPCState *env, uint64_t xb) { float_status tstat = env->fp_status; |