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authorLDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>2019-10-31 19:09:03 +0100
committerAc_K <Acoustik666@gmail.com>2019-10-31 19:09:03 +0100
commiteee639d6ba544fa5dd9352426d55e91bc54e157d (patch)
tree1df440ca57d8c1725e84f403fbeecddb8e508a3a /ChocolArm64/Decoders/OpCodeSimdImm64.cs
parent35443bac5a16ced668d84e0a22c21ca9076b3924 (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.cs100
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;
- }
- }
- }
-} \ No newline at end of file