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target/ppc: add vmulh{su}w instructions

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vmulhsw: Vector Multiply High Signed Word
vmulhuw: Vector Multiply High Unsigned Word

Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Message-Id: <20200724045845.89976-4-ljp@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Lijun Pan 2020-07-23 23:58:42 -05:00 • committed by David Gibson
parent 73ebe95e8e
commit f3e0d864ab
4 changed files with 29 additions and 2 deletions
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19
target/ppc/int_helper.c
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@ -1086,6 +1086,25 @@ VMUL(uw, u32, VsrW, VsrD, uint64_t)
#undef VMUL_DO_ODD
#undef VMUL
void helper_vmulhsw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
int i;
for (i = 0; i < 4; i++) {
r->s32[i] = (int32_t)(((int64_t)a->s32[i] * (int64_t)b->s32[i]) >> 32);
}
}
void helper_vmulhuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
int i;
for (i = 0; i < 4; i++) {
r->u32[i] = (uint32_t)(((uint64_t)a->u32[i] *
(uint64_t)b->u32[i]) >> 32);
}
}
void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t *c)
{