diff options
| author | LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com> | 2018-09-08 19:24:29 +0200 |
|---|---|---|
| committer | gdkchan <gab.dark.100@gmail.com> | 2018-09-08 14:24:29 -0300 |
| commit | a0c78f792012cdea060444d7cb6a36dbabb04d52 (patch) | |
| tree | d0c517047dac5fc96c04135ccfb07ef5d2db1622 /ChocolArm64/ABitUtils.cs | |
| parent | ca1e37a29553f97ecf574fb3678422dd93a2b91d (diff) | |
Fix/Add 10 Shift Right and Mls_Ve Instructions; add 14 Tests. (#407)
* Update AOpCodeTable.cs
* Update AInstEmitSimdShift.cs
* Update ASoftFallback.cs
* Update AOpCodeSimdShImm.cs
* Update ABitUtils.cs
* Update AInstEmitSimdArithmetic.cs
* Update AInstEmitSimdHelper.cs
* Create CpuTestSimdShImm.cs
* Create CpuTestSimdRegElem.cs
* Address PR feedback.
* Nit.
* Nit.
Diffstat (limited to 'ChocolArm64/ABitUtils.cs')
| -rw-r--r-- | ChocolArm64/ABitUtils.cs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/ChocolArm64/ABitUtils.cs b/ChocolArm64/ABitUtils.cs index 357dd45d..dd416235 100644 --- a/ChocolArm64/ABitUtils.cs +++ b/ChocolArm64/ABitUtils.cs @@ -27,6 +27,10 @@ namespace ChocolArm64 return -1; } + private static readonly sbyte[] HbsNibbleTbl = { -1, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 }; + + public static int HighestBitSetNibble(int Value) => HbsNibbleTbl[Value & 0b1111]; + public static long Replicate(long Bits, int Size) { long Output = 0; @@ -54,4 +58,4 @@ namespace ChocolArm64 return Value != 0 && (Value & (Value - 1)) == 0; } } -}
\ No newline at end of file +} |