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[skip ci] [doc] update setDefaultEncoding

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MITSUNARI Shigeo 2024-10-13 15:07:35 +09:00
parent 14ae9bf485
commit f3f2dd2d74
2 changed files with 13 additions and 12 deletions
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17
doc/usage.md
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@ -121,15 +121,14 @@ vmpsadbw(xm1, xm3, xm15, 3); // evex(avx10.2)
```
- `setDefaultEncoding(PreferredEncoding vnniEnc = EvexEncoding, PreferredEncoding mpsadbwEnc = VexEncoding)`
- 1st argument. Set the default encoding to select EVEX or VEX for VNNI
- The default value is EvexEncoding (AVX512_VNNI).
- encoded as AVX-VNNI if VexEncoding is set.
- This parameter affects to vpdpbusd, vpdpbusds, vpdpwssd, vpdpwssds.
- 2nd argument. Set the default encoding to select EVEX or VEX for vmpsadbw
- The default value is VexEncoding (AVX/AVX2).
- encoded as AVX10.2 if EvexEncoding is set.
- This parameter affects to vmpsadbw.
- `setDefaultEncoding(PreferredEncoding vnniEnc = EvexEncoding, PreferredEncoding avx10Enc = VexEncoding)`
param|vnniEnc|avx10Enc
-|-|-
EvexEncoding|AVX512_VNNI|AVX10.2
VexEncoding|AVX/AVX2|AVX-VNNI-INT8
default|EvexEncoding|VexEncoding
mnemonic|vpdpbusd, vpdpbusds, vpdpwssd, vpdpwssds|vmpsadbw, vpdpbssd
### Remark
* `k1`, ..., `k7` are opmask registers.

8
xbyak/xbyak.h
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@ -3170,9 +3170,11 @@ public:
#undef jnl
#endif
// set default encoding to select Vex or Evex
void setDefaultEncoding(PreferredEncoding vnniEnc = EvexEncoding, PreferredEncoding mpsadbwEnc = VexEncoding)
{ defaultEncoding_[0] = vnniEnc; defaultEncoding_[1] = mpsadbwEnc; }
// set default encoding
// vnniEnc : control AVX512_VNNI (evex:default) or AVX-VNNI (vex)
// avx10Enc : control mpsadbw, AVX-VNNI-INT8 (vex:default) or AVX10.2 (evex)
void setDefaultEncoding(PreferredEncoding vnniEnc = EvexEncoding, PreferredEncoding avx10Enc = VexEncoding)
{ defaultEncoding_[0] = vnniEnc; defaultEncoding_[1] = avx10Enc; }
void sha1msg12(const Xmm& x, const Operand& op)
{