diff options
Diffstat (limited to 'target-ppc/op_helper.c')
| -rw-r--r-- | target-ppc/op_helper.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index f787774a09..be3e9289ea 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2180,6 +2180,40 @@ void helper_vmsumubm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) } } +void helper_vmsumuhm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + uint32_t prod[8]; + int i; + + for (i = 0; i < ARRAY_SIZE(r->u16); i++) { + prod[i] = a->u16[i] * b->u16[i]; + } + + VECTOR_FOR_INORDER_I(i, u32) { + r->u32[i] = c->u32[i] + prod[2*i] + prod[2*i+1]; + } +} + +void helper_vmsumuhs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + uint32_t prod[8]; + int i; + int sat = 0; + + for (i = 0; i < ARRAY_SIZE(r->u16); i++) { + prod[i] = a->u16[i] * b->u16[i]; + } + + VECTOR_FOR_INORDER_I (i, s32) { + uint64_t t = (uint64_t)c->u32[i] + prod[2*i] + prod[2*i+1]; + r->u32[i] = cvtuduw(t, &sat); + } + + if (sat) { + env->vscr |= (1 << VSCR_SAT); + } +} + #define VMUL_DO(name, mul_element, prod_element, evenp) \ void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ { \ |