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[+] Bgt works with 64-bit values now.

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This commit is contained in:
LostTheBlack_cp 2008-04-17 22:29:21 +00:00
parent 45377fd9e6
commit 492fcb6189
1 changed files with 24 additions and 20 deletions
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44
source/Indy.IL2CPU.IL.X86/Bgt.cs
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@ -27,26 +27,30 @@ namespace Indy.IL2CPU.IL.X86 {
if (xStackContent.Size > 8) {
throw new Exception("StackSize>8 not supported");
}
new CPUx86.Pop(CPUx86.Registers.EAX);
if (xStackContent.Size > 4) {
throw new NotImplementedException("long comprasion is not implemented");
new CPUx86.Add("esp", "4");
}
new CPUx86.Compare(CPUx86.Registers.EAX, CPUx86.Registers.AtESP);
new CPUx86.JumpIfGreater(LabelTrue);
new CPUx86.JumpAlways(LabelFalse);
new CPU.Label(LabelTrue);
new CPUx86.Add(CPUx86.Registers.ESP, "4");
if (xStackContent.Size > 4) {
throw new NotImplementedException("long comprasion is not implemented");
new CPUx86.Add("esp", "4");
}
new CPUx86.JumpAlways(TargetLabel);
new CPU.Label(LabelFalse);
new CPUx86.Add(CPUx86.Registers.ESP, "4");
if (xStackContent.Size > 4) {
throw new NotImplementedException("long comprasion is not implemented");
new CPUx86.Add("esp", "4");
if (xStackContent.Size > 4)
{
//target label is then value1 >= value2
new CPUx86.Pop(CPUx86.Registers.EAX);
new CPUx86.Pop(CPUx86.Registers.EDX);
//value2: EDX:EAX
new CPUx86.Pop("ebx");
new CPUx86.Pop("ecx");
//value1: ECX:EBX
new CPUx86.Sub("ebx", "eax");
new CPUx86.SubWithCarry("ecx", "edx");
//result = value2 - value1
new CPUx86.JumpOnGreater(TargetLabel);
}else
{
new CPUx86.Pop(CPUx86.Registers.EAX);
new CPUx86.Compare(CPUx86.Registers.EAX, CPUx86.Registers.AtESP);
new CPUx86.JumpIfGreater(LabelTrue);
new CPUx86.JumpAlways(LabelFalse);
new CPU.Label(LabelTrue);
new CPUx86.Add(CPUx86.Registers.ESP, "4");
new CPUx86.JumpAlways(TargetLabel);
new CPU.Label(LabelFalse);
new CPUx86.Add(CPUx86.Registers.ESP, "4");
}
}
}