mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 22:12:25 +00:00
37 lines
No EOL
1.3 KiB
C#
37 lines
No EOL
1.3 KiB
C#
using System;
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using System.Linq;
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using Mono.Cecil.Cil;
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using CPU = Indy.IL2CPU.Assembler;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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namespace Indy.IL2CPU.IL.X86 {
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[OpCode(Code.Ceq)]
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public class Ceq: Op {
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private readonly string NextInstructionLabel;
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private readonly string CurInstructionLabel;
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public Ceq(Mono.Cecil.Cil.Instruction aInstruction, MethodInformation aMethodInfo)
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: base(aInstruction, aMethodInfo) {
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NextInstructionLabel = GetInstructionLabel(aInstruction.Next);
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CurInstructionLabel = GetInstructionLabel(aInstruction);
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}
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public override void DoAssemble() {
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Assembler.StackSizes.Pop();
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Assembler.StackSizes.Push(4);
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string BaseLabel = CurInstructionLabel + "__";
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string LabelTrue = BaseLabel + "True";
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string LabelFalse = BaseLabel + "False";
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new CPUx86.Pop(CPUx86.Registers.EAX);
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new CPUx86.Compare(CPUx86.Registers.EAX, CPUx86.Registers.AtESP);
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new CPUx86.JumpIfEquals(LabelTrue);
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new CPUx86.JumpAlways(LabelFalse);
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new CPU.Label(LabelTrue);
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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new CPUx86.Push("01h");
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new CPUx86.JumpAlways(NextInstructionLabel);
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new CPU.Label(LabelFalse);
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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new CPUx86.Push("00h");
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new CPUx86.JumpAlways(NextInstructionLabel);
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}
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}
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} |