On 6/18/20 10:10 PM, Lijun Pan wrote:
>> Unfortunately, I can't find the v3.1 spec online yet, so I can't look at this
>> myself. What is the instruction supposed to produce?
>
> https://ibm.ent.box.com/s/hhjfw0x0lrbtyzmiaffnbxh2fuo0fog0
Thank you. So it really is the sum of an input and two se
> On Jun 18, 2020, at 6:09 PM, Richard Henderson
> wrote:
>
> On 6/15/20 1:53 PM, Lijun Pan wrote:
+static inline void uint128_add(uint64_t ah, uint64_t al, uint64_t bh,
+ uint64_t bl, uint64_t *rh, uint64_t *rl, uint64_t *ca)
+{
+ __uint128_t a = (__uint128_t)ah
On 6/15/20 1:53 PM, Lijun Pan wrote:
>>> +static inline void uint128_add(uint64_t ah, uint64_t al, uint64_t bh,
>>> + uint64_t bl, uint64_t *rh, uint64_t *rl, uint64_t *ca)
>>> +{
>>> + __uint128_t a = (__uint128_t)ah << 64 | (__uint128_t)al;
>>> + __uint128_t b = (__uint128_t)bh << 6
> On Jun 15, 2020, at 11:12 AM, Richard Henderson
> wrote:
>
> On 6/12/20 8:55 PM, Lijun Pan wrote:
>> vmsumudm (Power ISA 3.0) - Vector Multiply-Sum Unsigned Doubleword Modulo
>> VA-form.
>> vmsumcud (Power ISA 3.1) - Vector Multiply-Sum & write Carry-out Unsigned
>> Doubleword VA-form.
>>
On 6/12/20 8:55 PM, Lijun Pan wrote:
> vmsumudm (Power ISA 3.0) - Vector Multiply-Sum Unsigned Doubleword Modulo
> VA-form.
> vmsumcud (Power ISA 3.1) - Vector Multiply-Sum & write Carry-out Unsigned
> Doubleword VA-form.
>
> Signed-off-by: Lijun Pan
> ---
> v2: move vmsumcudm() to qemu/int128.h
vmsumudm (Power ISA 3.0) - Vector Multiply-Sum Unsigned Doubleword Modulo
VA-form.
vmsumcud (Power ISA 3.1) - Vector Multiply-Sum & write Carry-out Unsigned
Doubleword VA-form.
Signed-off-by: Lijun Pan
---
v2: move vmsumcudm() to qemu/int128.h as Richard Henderson suggested,
also rename addu1
