diff options
Diffstat (limited to 'ChocolArm64/Decoder/AOpCodeMemImm.cs')
| -rw-r--r-- | ChocolArm64/Decoder/AOpCodeMemImm.cs | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/ChocolArm64/Decoder/AOpCodeMemImm.cs b/ChocolArm64/Decoder/AOpCodeMemImm.cs deleted file mode 100644 index 14edc514..00000000 --- a/ChocolArm64/Decoder/AOpCodeMemImm.cs +++ /dev/null @@ -1,53 +0,0 @@ -using ChocolArm64.Instruction; - -namespace ChocolArm64.Decoder -{ - class AOpCodeMemImm : AOpCodeMem - { - 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 AOpCodeMemImm(AInst 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 << 43) >> 55; - } - else - { - //12-bits Unsigned Immediate. - Imm = ((OpCode >> 10) & 0xfff) << Size; - } - } - } -}
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