On 3/15/20 4:23 PM, LIU Zhiwei wrote:
> Many other fixed point instructions also need vxsat besides vxsrm.
Ah yes.
> In that cases, can I just define OPIVV2_RM like this:
>
> #define OPIVV2_RM(NAME, TD, T1, T2, TX1, TX2, HD, HS1, HS2, OP) \
> static inline void
On 2020/3/15 9:00, Richard Henderson wrote:
On 3/14/20 4:12 PM, LIU Zhiwei wrote:
I am not sure whether I get it. In my opinion, the code should be modified like
static inline int8_t aadd8_rnu(CPURISCVState *env, int8_t a, int8_t b)
{
int16_t res = (int16_t)a + (int16_t)b;
uint8_t
On 3/14/20 4:12 PM, LIU Zhiwei wrote:
> I am not sure whether I get it. In my opinion, the code should be modified
> like
>
> static inline int8_t aadd8_rnu(CPURISCVState *env, int8_t a, int8_t b)
> {
> int16_t res = (int16_t)a + (int16_t)b;
> uint8_t round = res & 0x1;
> res =
On 2020/3/14 16:25, Richard Henderson wrote:
On 3/14/20 1:14 AM, Richard Henderson wrote:
I think you should have 4 versions of aadd8, for each of the rounding modes,
+RVVCALL(OPIVV2_ENV, vaadd_vv_b, OP_SSS_B, H1, H1, H1, aadd8)
then use this, or something like it, to define 4 functions
On 3/14/20 1:14 AM, Richard Henderson wrote:
> I think you should have 4 versions of aadd8, for each of the rounding modes,
>
>> +RVVCALL(OPIVV2_ENV, vaadd_vv_b, OP_SSS_B, H1, H1, H1, aadd8)
>
> then use this, or something like it, to define 4 functions containing main
> loops, which will get
On 3/12/20 7:58 AM, LIU Zhiwei wrote:
> +/* Vector Single-Width Averaging Add and Subtract */
> +static inline uint8_t get_round(CPURISCVState *env, uint64_t v, uint8_t
> shift)
> +{
> +uint8_t d = extract64(v, shift, 1);
> +uint8_t d1;
> +uint64_t D1, D2;
> +int mod = env->vxrm;
Signed-off-by: LIU Zhiwei
---
target/riscv/helper.h | 17
target/riscv/insn32.decode | 5 +
target/riscv/insn_trans/trans_rvv.inc.c | 7 ++
target/riscv/vector_helper.c| 129
4 files changed, 158 insertions(+)
diff
