mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-23 06:18:54 +00:00
43 lines
No EOL
1.4 KiB
C#
43 lines
No EOL
1.4 KiB
C#
using System;
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using System.IO;
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using Mono.Cecil;
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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.Ble)]
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public class Ble: Op {
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public readonly string TargetLabel;
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public readonly string CurInstructionLabel;
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public Ble(Mono.Cecil.Cil.Instruction aInstruction, MethodInformation aMethodInfo)
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: base(aInstruction, aMethodInfo) {
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TargetLabel = GetInstructionLabel((Instruction)aInstruction.Operand);
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CurInstructionLabel = GetInstructionLabel(aInstruction);
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}
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public override void DoAssemble() {
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int xSize = Math.Max(Assembler.StackSizes.Pop(), Assembler.StackSizes.Pop());
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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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if (xSize > 4) {
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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}
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new CPUx86.Compare(CPUx86.Registers.EAX, CPUx86.Registers.AtESP);
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new CPUx86.JumpIfLessOrEqual(LabelFalse);
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new CPUx86.JumpAlways(LabelTrue);
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new CPU.Label(LabelTrue);
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if (xSize > 4) {
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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}
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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new CPUx86.JumpAlways(TargetLabel);
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new CPU.Label(LabelFalse);
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if (xSize > 4) {
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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}
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new CPUx86.Add(CPUx86.Registers.ESP, "4");
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}
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}
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} |