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Add Cls Instruction. (#67)
* Update AInstEmitAlu.cs * Update ASoftFallback.cs * Update AOpCodeTable.cs
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@ -8,7 +8,7 @@ namespace ChocolArm64
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{
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static AOpCodeTable()
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{
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#region "OpCode Table"
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#region "OpCode Table"
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//Integer
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Set("x0011010000xxxxx000000xxxxxxxxxx", AInstEmit.Adc, typeof(AOpCodeAluRs));
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Set("x0111010000xxxxx000000xxxxxxxxxx", AInstEmit.Adcs, typeof(AOpCodeAluRs));
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@ -41,6 +41,7 @@ namespace ChocolArm64
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Set("x1111010010xxxxxxxxx10xxxxxxxxxx", AInstEmit.Ccmp, typeof(AOpCodeCcmpImm));
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Set("x1111010010xxxxxxxxx00xxxxxxxxxx", AInstEmit.Ccmp, typeof(AOpCodeCcmpReg));
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Set("11010101000000110011xxxx01011111", AInstEmit.Clrex, typeof(AOpCodeSystem));
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Set("x101101011000000000101xxxxxxxxxx", AInstEmit.Cls, typeof(AOpCodeAlu));
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Set("x101101011000000000100xxxxxxxxxx", AInstEmit.Clz, typeof(AOpCodeAlu));
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Set("x0011010110xxxxx010000xxxxxxxxxx", AInstEmit.Crc32b, typeof(AOpCodeAluRs));
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Set("x0011010110xxxxx010001xxxxxxxxxx", AInstEmit.Crc32h, typeof(AOpCodeAluRs));
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@ -68,7 +69,7 @@ namespace ChocolArm64
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Set("xx111000010xxxxxxxxxxxxxxxxxxxxx", AInstEmit.Ldr, typeof(AOpCodeMemImm));
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Set("xx11100101xxxxxxxxxxxxxxxxxxxxxx", AInstEmit.Ldr, typeof(AOpCodeMemImm));
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Set("xx111000011xxxxxxxxx10xxxxxxxxxx", AInstEmit.Ldr, typeof(AOpCodeMemReg));
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Set("xx011000xxxxxxxxxxxxxxxxxxxxxxxx", AInstEmit.LdrLit, typeof(AOpCodeMemLit));
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Set("xx011000xxxxxxxxxxxxxxxxxxxxxxxx", AInstEmit.LdrLit, typeof(AOpCodeMemLit));
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Set("0x1110001x0xxxxxxxxxxxxxxxxxxxxx", AInstEmit.Ldrs, typeof(AOpCodeMemImm));
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Set("0x1110011xxxxxxxxxxxxxxxxxxxxxxx", AInstEmit.Ldrs, typeof(AOpCodeMemImm));
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Set("10111000100xxxxxxxxxxxxxxxxxxxxx", AInstEmit.Ldrs, typeof(AOpCodeMemImm));
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@ -442,4 +443,4 @@ namespace ChocolArm64
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return AInst.Undefined;
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}
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}
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}
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}
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@ -100,6 +100,24 @@ namespace ChocolArm64.Instruction
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EmitDataStore(Context, SetFlags);
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}
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public static void Cls(AILEmitterCtx Context)
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{
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AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
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Context.EmitLdintzr(Op.Rn);
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if (Op.RegisterSize == ARegisterSize.Int32)
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{
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ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingSigns32));
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}
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else
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{
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ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingSigns64));
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}
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Context.EmitStintzr(Op.Rd);
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}
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public static void Clz(AILEmitterCtx Context)
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{
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AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
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@ -383,4 +401,4 @@ namespace ChocolArm64.Instruction
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Context.EmitStflg((int)APState.CBit);
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}
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}
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}
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}
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@ -20,6 +20,14 @@ namespace ChocolArm64.Instruction
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Context.EmitCall(typeof(ASoftFallback), MthdName);
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}
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public static uint CountLeadingSigns32(uint Value) => (uint)CountLeadingSigns(Value, 32);
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public static ulong CountLeadingSigns64(ulong Value) => (ulong)CountLeadingSigns(Value, 64);
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private static ulong CountLeadingSigns(ulong Value, int Size)
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{
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return CountLeadingZeros((Value >> 1) ^ Value, Size - 1);
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}
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public static uint CountLeadingZeros32(uint Value) => (uint)CountLeadingZeros(Value, 32);
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public static ulong CountLeadingZeros64(ulong Value) => (ulong)CountLeadingZeros(Value, 64);
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@ -398,4 +406,4 @@ namespace ChocolArm64.Instruction
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throw new ArgumentOutOfRangeException(nameof(Size));
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}
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}
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}
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}
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