Cosmos/source/Compiler/Indy.IL2CPU.X86/IL/x86/Beq.cs

//using System;
//using System.IO;


//using CPU = Indy.IL2CPU.Assembler;
//using CPUx86 = Indy.IL2CPU.Assembler.X86;

//namespace Indy.IL2CPU.IL.X86 {
//    [OpCode(OpCodeEnum.Beq)]
//    public class Beq: Op {
//        public readonly string TargetLabel;
//        public readonly string CurInstructionLabel;

//        public Beq(ILReader aReader, MethodInformation aMethodInfo)
//            : base(aReader, aMethodInfo) {
//            TargetLabel = GetInstructionLabel(aReader.OperandValueBranchPosition);
//            CurInstructionLabel = GetInstructionLabel(aReader);
//        }

//        public override void DoAssemble() {
//            var xStackContent = Assembler.StackContents.Pop();
//            Assembler.StackContents.Pop();
//            if (xStackContent.Size > 8) {
//                throw new Exception("StackSize > 8 not supported");
//            }
//            string BaseLabel = CurInstructionLabel + "__";
//            string LabelTrue = BaseLabel + "True";
//            string LabelFalse = BaseLabel + "False";
//            if (xStackContent.Size <= 4) {
//                new CPUx86.Pop{DestinationReg = CPUx86.Registers.EAX};
//        new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
//        new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.EBX };
//        new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotEqual, DestinationLabel = LabelFalse };
//        new CPUx86.Jump { DestinationLabel = TargetLabel };
//                new CPU.Label(LabelFalse);
//            } else {
//        new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
//        new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
//        new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
//        new CPUx86.Pop { DestinationReg = CPUx86.Registers.EDX };
//        new CPUx86.Xor { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ECX };
//        new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotZero, DestinationLabel = LabelFalse };
//        new CPUx86.Xor { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.EDX };
//        new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotZero, DestinationLabel = LabelFalse };
//        new CPUx86.Jump { DestinationLabel = TargetLabel };
//                new CPU.Label(LabelFalse);
//            }
//        }

//    }
//}