diff options
Diffstat (limited to 'target-ppc/dfp_helper.c')
| -rw-r--r-- | target-ppc/dfp_helper.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target-ppc/dfp_helper.c b/target-ppc/dfp_helper.c index c6c104b739..8c8ee795c7 100644 --- a/target-ppc/dfp_helper.c +++ b/target-ppc/dfp_helper.c @@ -1121,3 +1121,34 @@ void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b, uint32_t s) \ DFP_HELPER_ENBCD(denbcd, 64) DFP_HELPER_ENBCD(denbcdq, 128) + +#define DFP_HELPER_XEX(op, size) \ +void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b) \ +{ \ + struct PPC_DFP dfp; \ + \ + dfp_prepare_decimal##size(&dfp, 0, b, env); \ + \ + if (unlikely(decNumberIsSpecial(&dfp.b))) { \ + if (decNumberIsInfinite(&dfp.b)) { \ + *t = -1; \ + } else if (decNumberIsSNaN(&dfp.b)) { \ + *t = -3; \ + } else if (decNumberIsQNaN(&dfp.b)) { \ + *t = -2; \ + } else { \ + assert(0); \ + } \ + } else { \ + if ((size) == 64) { \ + *t = dfp.b.exponent + 398; \ + } else if ((size) == 128) { \ + *t = dfp.b.exponent + 6176; \ + } else { \ + assert(0); \ + } \ + } \ +} + +DFP_HELPER_XEX(dxex, 64) +DFP_HELPER_XEX(dxexq, 128) |