mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-19 12:30:32 +00:00
f8e18e3fbc
Changes in Conv*, Ld* and St* opcodes so that values with size < 4 bytes are extended to 4 bytes. Implemented Not and Xor for values with size 8 bytes. Added tests for bitwise operations, arithmetic operations and Conv* opcodes.
44 lines
1.2 KiB
C#
44 lines
1.2 KiB
C#
using System;
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using XSharp.Compiler;
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using static XSharp.Compiler.XSRegisters;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode(ILOpCode.Code.Xor)]
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public class Xor : ILOp
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{
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public Xor(Cosmos.Assembler.Assembler aAsmblr)
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: base(aAsmblr)
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{
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}
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public override void Execute(MethodInfo aMethod, ILOpCode aOpCode)
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{
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var xSize = Math.Max(SizeOfType(aOpCode.StackPopTypes[0]), SizeOfType(aOpCode.StackPopTypes[1]));
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if (xSize > 8)
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{
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throw new NotImplementedException("Cosmos.IL2CPU.x86->IL->Xor.cs->Error: StackSize > 8 not supported");
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}
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if (xSize <= 4)
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{
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XS.Pop(EAX);
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XS.Xor(ESP, EAX, destinationIsIndirect: true);
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}
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else if (xSize <= 8)
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{
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// low part
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XS.Pop(EAX);
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// high part
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XS.Pop(EDX);
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// xor on low parts
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XS.Xor(ESP, EAX, destinationIsIndirect: true);
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// xor on high parts
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XS.Xor(ESP, EDX, destinationDisplacement: 4);
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}
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}
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}
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}
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