mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-20 04:48:53 +00:00
102 lines
4.2 KiB
C#
102 lines
4.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using Mono.Cecil;
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using Mono.Cecil.Cil;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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namespace Indy.IL2CPU.IL.X86 {
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public abstract class X86CustomMethodImplementationOp: CustomMethodImplementationOp {
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public X86CustomMethodImplementationOp(Instruction aInstruction, MethodInformation aMethodInfo)
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: base(aInstruction, aMethodInfo) {
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}
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/// <summary>
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/// Passes the call directly to an equal method.
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/// </summary>
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/// <param name="aMethod"></param>
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protected void PassCall(MethodReference aMethod) {
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for (int i = 0; i < aMethod.Parameters.Count; i++) {
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Ldarg.Ldarg(Assembler, MethodInfo.Arguments[i]);
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}
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Engine.QueueMethodRef(aMethod);
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Op xOp = new Call(aMethod);
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xOp.Assembler = Assembler;
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xOp.Assemble();
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}
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protected override void Assemble_System_Void___System_Runtime_CompilerServices_RuntimeHelpers_InitializeArray___System_Array__System_RuntimeFieldHandle___() {
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// Arguments:
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// Array aArray, RuntimeFieldHandle aFieldHandle
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new Assembler.X86.Move(CPUx86.Registers.EDI, "[" + MethodInfo.Arguments[0].VirtualAddresses[0] + "]"); // aArray
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new Assembler.X86.Move(CPUx86.Registers.ESI, "[" + MethodInfo.Arguments[1].VirtualAddresses[0] + "]"); // aFieldHandle
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new Assembler.X86.Add(CPUx86.Registers.EDI, "8");
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new Assembler.X86.Push("dword [edi]");
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new Assembler.X86.Add(CPUx86.Registers.EDI, "4");
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new CPUx86.Move("eax", "[edi]");
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new CPUx86.Multiply("dword [esp]");
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new CPUx86.Pop("ecx");
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new CPUx86.Move("ecx", "eax");
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new Assembler.X86.Move(CPUx86.Registers.EAX, "0");
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new Assembler.X86.Add(CPUx86.Registers.EDI, "4");
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new Assembler.X86.Add(CPUx86.Registers.ESI, "16");
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new Assembler.Label(".StartLoop");
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new Assembler.X86.Move("byte", CPUx86.Registers.DL, CPUx86.Registers.AtESI);
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new Assembler.X86.Move("byte", CPUx86.Registers.AtEDI, CPUx86.Registers.DL);
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new Assembler.X86.Add(CPUx86.Registers.EAX, "1");
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new Assembler.X86.Add(CPUx86.Registers.ESI, "1");
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new Assembler.X86.Add(CPUx86.Registers.EDI, "1");
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new Assembler.X86.Compare(CPUx86.Registers.EAX, CPUx86.Registers.ECX);
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new Assembler.X86.JumpIfEquals(".EndLoop");
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new Assembler.X86.JumpAlways(".StartLoop");
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new Assembler.Label(".EndLoop");
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}
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protected override void Assemble_System_UInt32___Indy_IL2CPU_CustomImplementation_System_StringImpl_GetStorage___System_UInt32___() {
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// arg 0 == this
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AssembleOp(new Ldarg(MethodInfo, 0));
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new Indy.IL2CPU.Assembler.X86.Pop(CPUx86.Registers.EAX);
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if (!mAssembler.InMetalMode) {
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int xStorageSize;
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SortedList<string, TypeInformation.Field> xFields = Engine.GetTypeFieldInfo(Engine.GetMethodDefinition(Engine.GetTypeDefinition("mscorlib", "System.String"), ".ctor", "System.Char[]"), out xStorageSize);
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new Indy.IL2CPU.Assembler.X86.Add(CPUx86.Registers.EAX, "0" + xFields["$$Storage$$"].Offset.ToString("X") + "h");
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new Indy.IL2CPU.Assembler.X86.Move(CPUx86.Registers.EAX, CPUx86.Registers.AtEAX);
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new Indy.IL2CPU.Assembler.X86.Add(CPUx86.Registers.EAX, "12");
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new Indy.IL2CPU.Assembler.X86.Pushd(CPUx86.Registers.EAX);
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}
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}
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private void AssembleOp(X86.Op aOp) {
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aOp.Assembler = Assembler;
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aOp.Assemble();
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}
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protected override void Assemble_System_Object___System_Array_GetValue___System_Int32___() {
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// arg 0 == this
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// arg 1 == Index
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AssembleOp(new Ldarg(MethodInfo, 0));
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AssembleOp(new Ldarg(MethodInfo, 1));
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AssembleOp(new Ldelem_I4(null, MethodInfo));
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new Indy.IL2CPU.Assembler.X86.Pop(CPUx86.Registers.EAX);
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}
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protected override void Assemble_System_Void___System_Array_SetValue___System_Object__System_Int32___() {
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// arg 0 == this
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// arg 1 == value
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// arg 2 == index
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AssembleOp(new Ldarg(MethodInfo, 0));
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AssembleOp(new Ldarg(MethodInfo, 2));
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AssembleOp(new Ldarg(MethodInfo, 1));
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Stelem_Any.Assemble(Assembler, 4);
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}
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protected override void Assemble_System_Int32_System_Array_get_Length____() {
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AssembleOp(new Ldarg(MethodInfo, 0));
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new Indy.IL2CPU.Assembler.X86.Popd(CPUx86.Registers.EAX);
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new Indy.IL2CPU.Assembler.X86.Pushd("[eax + 8]");
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new Indy.IL2CPU.Assembler.X86.Popd(CPUx86.Registers.EAX);
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}
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}
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}
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