On 10.08.2022 21:01, Andrew Cooper wrote:
> On 15/06/2022 11:30, Jan Beulich wrote:
>> These are easiest in that they have same-size source and destination
>> vectors, yet they're different from other conversion insns in that they
>> use opcodes which have different meaning in the 0F encoding space
>> ({,V}H{ADD,SUB}P{S,D}), hence requiring a little bit of overriding.
>
> At what point is sharing the opcode tables going to be not worth doing?
Very good question. I've not been able to set, for myself, a good
threshold. The vague plan that I had was to wait and see what the next
uses in map 5/6 are going to be, and then decide whether to introduce
separate tables. (And if still going with overrides then, re-evaluate
on the subsequent set of additions. But basically always with a full
new set of insns in mind.)
Jan
