diff options
Diffstat (limited to 'ChocolArm64/Decoders/OpCodeMemImm64.cs')
| -rw-r--r-- | ChocolArm64/Decoders/OpCodeMemImm64.cs | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/ChocolArm64/Decoders/OpCodeMemImm64.cs b/ChocolArm64/Decoders/OpCodeMemImm64.cs deleted file mode 100644 index 01a62ef5..00000000 --- a/ChocolArm64/Decoders/OpCodeMemImm64.cs +++ /dev/null @@ -1,53 +0,0 @@ -using ChocolArm64.Instructions; - -namespace ChocolArm64.Decoders -{ - class OpCodeMemImm64 : OpCodeMem64 - { - public long Imm { get; protected set; } - public bool WBack { get; protected set; } - public bool PostIdx { get; protected set; } - protected bool Unscaled { get; private set; } - - private enum MemOp - { - Unscaled = 0, - PostIndexed = 1, - Unprivileged = 2, - PreIndexed = 3, - Unsigned - } - - public OpCodeMemImm64(Inst inst, long position, int opCode) : base(inst, position, opCode) - { - Extend64 = ((opCode >> 22) & 3) == 2; - WBack = ((opCode >> 24) & 1) == 0; - - // The type is not valid for the Unsigned Immediate 12-bits encoding, - // because the bits 11:10 are used for the larger Immediate offset. - MemOp type = WBack ? (MemOp)((opCode >> 10) & 3) : MemOp.Unsigned; - - PostIdx = type == MemOp.PostIndexed; - Unscaled = type == MemOp.Unscaled || - type == MemOp.Unprivileged; - - // Unscaled and Unprivileged doesn't write back, - // but they do use the 9-bits Signed Immediate. - if (Unscaled) - { - WBack = false; - } - - if (WBack || Unscaled) - { - // 9-bits Signed Immediate. - Imm = (opCode << 11) >> 23; - } - else - { - // 12-bits Unsigned Immediate. - Imm = ((opCode >> 10) & 0xfff) << Size; - } - } - } -}
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