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| author | LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com> | 2021-01-04 23:45:54 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-04 23:45:54 +0100 |
| commit | 430ba6da65a781196db7d723cc88710bb7f5caf8 (patch) | |
| tree | a7ed55f638dde795f4270a324fa5338ffb80ee12 /ARMeilleure/State | |
| parent | a03ab0c4a0bef3c168874dc2105c43c9051e0807 (diff) | |
CPU (A64): Add Pmull_V Inst. with Clmul fast path for the "1/2D -> 1Q" variant & Sse fast path and slow path for both the "8/16B -> 8H" and "1/2D -> 1Q" variants; with Test. (#1817)
* Add Pmull_V Sse fast path only, both "8/16B -> 8H" and "1/2D -> 1Q" variants; with Test.
* Add Clmul fast path for the 128 bits variant.
* Small optimisation (save 60 instructions) for the Sse fast path about the 128 bits variant.
* Add slow path, both variants. Fix V128 Shl/Shr when shift = 0.
* A32: Add Vmull_I P64 variant (slow path); not tested.
* A32: Add Vmull_I_P8_P64 Test and fix P64 variant.
Diffstat (limited to 'ARMeilleure/State')
| -rw-r--r-- | ARMeilleure/State/V128.cs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/ARMeilleure/State/V128.cs b/ARMeilleure/State/V128.cs index 399cea13..3fa9f9a9 100644 --- a/ARMeilleure/State/V128.cs +++ b/ARMeilleure/State/V128.cs @@ -189,6 +189,11 @@ namespace ARMeilleure.State /// </remarks> public static V128 operator <<(V128 x, int shift) { + if (shift == 0) + { + return new V128(x._e0, x._e1); + } + ulong shiftOut = x._e0 >> (64 - shift); return new V128(x._e0 << shift, (x._e1 << shift) | shiftOut); @@ -205,6 +210,11 @@ namespace ARMeilleure.State /// </remarks> public static V128 operator >>(V128 x, int shift) { + if (shift == 0) + { + return new V128(x._e0, x._e1); + } + ulong shiftOut = x._e1 & ((1UL << shift) - 1); return new V128((x._e0 >> shift) | (shiftOut << (64 - shift)), x._e1 >> shift); |