diff options
| author | LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com> | 2019-10-31 19:09:03 +0100 |
|---|---|---|
| committer | Ac_K <Acoustik666@gmail.com> | 2019-10-31 19:09:03 +0100 |
| commit | eee639d6ba544fa5dd9352426d55e91bc54e157d (patch) | |
| tree | 1df440ca57d8c1725e84f403fbeecddb8e508a3a /ChocolArm64/Decoders/OpCodeSimdImm64.cs | |
| parent | 35443bac5a16ced668d84e0a22c21ca9076b3924 (diff) | |
.NET Core 3.0 is here! (#784)
* .NET Core 3.0 is here!
* Remove IMemoryManager.cs and its references.
* Add T Math/F.FusedMultiplyAdd(T, T, T). Nits.
* Nit.
* Update appveyor.yml
* Revert "Resolve Visual Studio build issues"
This reverts commit 1772128ce0fc058e6280001aace3a77a7a96897b.
* Update SvcTable.cs
Diffstat (limited to 'ChocolArm64/Decoders/OpCodeSimdImm64.cs')
| -rw-r--r-- | ChocolArm64/Decoders/OpCodeSimdImm64.cs | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/ChocolArm64/Decoders/OpCodeSimdImm64.cs b/ChocolArm64/Decoders/OpCodeSimdImm64.cs deleted file mode 100644 index 27f586f1..00000000 --- a/ChocolArm64/Decoders/OpCodeSimdImm64.cs +++ /dev/null @@ -1,100 +0,0 @@ -using ChocolArm64.Instructions; - -namespace ChocolArm64.Decoders -{ - class OpCodeSimdImm64 : OpCode64, IOpCodeSimd64 - { - public int Rd { get; private set; } - public long Imm { get; private set; } - public int Size { get; private set; } - - public OpCodeSimdImm64(Inst inst, long position, int opCode) : base(inst, position, opCode) - { - Rd = opCode & 0x1f; - - int cMode = (opCode >> 12) & 0xf; - int op = (opCode >> 29) & 0x1; - - int modeLow = cMode & 1; - int modeHigh = cMode >> 1; - - long imm; - - imm = ((uint)opCode >> 5) & 0x1f; - imm |= ((uint)opCode >> 11) & 0xe0; - - if (modeHigh == 0b111) - { - Size = modeLow != 0 ? op : 3; - - switch (op | (modeLow << 1)) - { - case 0: - // 64-bits Immediate. - // Transform abcd efgh into abcd efgh abcd efgh ... - imm = (long)((ulong)imm * 0x0101010101010101); - break; - - case 1: - // 64-bits Immediate. - // Transform abcd efgh into aaaa aaaa bbbb bbbb ... - imm = (imm & 0xf0) >> 4 | (imm & 0x0f) << 4; - imm = (imm & 0xcc) >> 2 | (imm & 0x33) << 2; - imm = (imm & 0xaa) >> 1 | (imm & 0x55) << 1; - - imm = (long)((ulong)imm * 0x8040201008040201); - imm = (long)((ulong)imm & 0x8080808080808080); - - imm |= imm >> 4; - imm |= imm >> 2; - imm |= imm >> 1; - break; - - case 2: - case 3: - // Floating point Immediate. - imm = DecoderHelper.DecodeImm8Float(imm, Size); - break; - } - } - else if ((modeHigh & 0b110) == 0b100) - { - // 16-bits shifted Immediate. - Size = 1; imm <<= (modeHigh & 1) << 3; - } - else if ((modeHigh & 0b100) == 0b000) - { - // 32-bits shifted Immediate. - Size = 2; imm <<= modeHigh << 3; - } - else if ((modeHigh & 0b111) == 0b110) - { - // 32-bits shifted Immediate (fill with ones). - Size = 2; imm = ShlOnes(imm, 8 << modeLow); - } - else - { - // 8 bits without shift. - Size = 0; - } - - Imm = imm; - - RegisterSize = ((opCode >> 30) & 1) != 0 - ? State.RegisterSize.Simd128 - : State.RegisterSize.Simd64; - } - - private static long ShlOnes(long value, int shift) - { - if (shift != 0) - { - return value << shift | (long)(ulong.MaxValue >> (64 - shift)); - } - else - { - return value; - } - } - } -}
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