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Working on the assembler.

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Creeper Lv
2025-07-18 12:43:42 +08:00
parent ae79862c07
commit 5701386dfb
19 changed files with 329 additions and 105 deletions
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101
src/SVM.Core/SimpleVirtualMachine.cs
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@@ -1,9 +1,9 @@
using SVM.Core.FuncImpl;
using SVM.Core.Data;
using SVM.Core.FuncImpl;
using SVM.Core.Utils;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Runtime.InteropServices;
using static SVM.Core.stdc.stdlib;
namespace SVM.Core
@@ -105,6 +105,9 @@ namespace SVM.Core
case SVMInstDef.UMath:
break;
case SVMInstDef.Cvt:
{
Convert(Instruction);
}
break;
case SVMInstDef.Cmp:
break;
@@ -148,6 +151,86 @@ namespace SVM.Core
PC++;
registers.SetData<ulong>((int)PCOffset, PC);
}
private void Convert(SVMInstruction Instruction)
{
var SType = Instruction.GetData<SVMNativeTypes>(1);
var TType = Instruction.GetData<SVMNativeTypes>(2);
var L = Instruction.GetData<byte>(3);
var T = Instruction.GetData<byte>(4);
ICastable castable;
switch (SType)
{
case SVMNativeTypes.Int8:
castable = registers.GetData<CompactSByte>(L);
break;
case SVMNativeTypes.Int16:
castable = registers.GetData<CompactShort>(L);
break;
case SVMNativeTypes.Int32:
castable = registers.GetData<CompactInt>(L);
break;
case SVMNativeTypes.Int64:
castable = registers.GetData<CompactLong>(L);
break;
case SVMNativeTypes.UInt8:
castable = registers.GetData<CompactByte>(L);
break;
case SVMNativeTypes.UInt16:
castable = registers.GetData<CompactUShort>(L);
break;
case SVMNativeTypes.UInt32:
castable = registers.GetData<CompactUInt>(L);
break;
case SVMNativeTypes.UInt64:
castable = registers.GetData<CompactULong>(L);
break;
case SVMNativeTypes.Float:
castable = registers.GetData<CompactSingle>(L);
break;
case SVMNativeTypes.Double:
castable = registers.GetData<CompactDouble>(L);
break;
default:
return;
}
switch (TType)
{
case SVMNativeTypes.Int8:
castable.Cast_SByte().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.Int16:
castable.Cast_Short().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.Int32:
castable.Cast_Int().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.Int64:
castable.Cast_Long().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.UInt8:
castable.Cast_Byte().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.UInt16:
castable.Cast_UShort().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.UInt32:
castable.Cast_UInt().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.UInt64:
castable.Cast_ULong().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.Float:
castable.Cast_Float().Write(registers.GetPtr(T));
break;
case SVMNativeTypes.Double:
castable.Cast_Double().Write(registers.GetPtr(T));
break;
default:
break;
}
}
public IntPtr GetPointer(ulong PC)
{
return GetPointer(new SVMPointer() { offset = (uint)PC, index = 0 });
@@ -229,24 +312,12 @@ namespace SVM.Core
/// </summary>
public uint EIDRegisterID;
}
public unsafe struct SVMProgram
{
public UInt64 InstructionCount;
public UInt64 DataSize;
public SVMInstruction* instructions;
public byte* data;
public static SVMProgram* LoadFromStream(Stream stream)
{
var program = (SVMProgram*)malloc(sizeof(SVMProgram));
return program;
}
}
public delegate void FuncCall(SimpleVirtualMachine machine);
[StructLayout(LayoutKind.Sequential)]
public struct MState
{
public byte OF;
public byte CF;
}
[StructLayout(LayoutKind.Sequential)]
public struct MemoryBlock : IDisposable