mirror of
https://github.com/creeperlv/SVM.git
synced 2026-01-10 20:39:54 +00:00
Finished basic Assembler and Linker framework.
This commit is contained in:
@@ -6,7 +6,7 @@ using System.Collections.Generic;
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namespace SVM.Assembler.Core
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{
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public delegate OperationResult<IntermediateInstruction?> AssemblerFunction(ILexer lexer, IntermediateInstruction instruction, LexSegment leadingSegment);
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public delegate OperationResult<SVMInstruction> LinkerFunction(LinkingContext context, IntermediateInstruction instruction);
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public class Assembler
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{
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public const string LexDefinition =
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@@ -55,13 +55,15 @@ LabelData InternalLbl
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LabelConstant InternalLbl
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";
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LexerDefinition? definition;
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public Dictionary<string, AssemblerFunction> assemblerFunctions = new Dictionary<string, AssemblerFunction>();
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public Assembler()
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public ISADefinition ISA;
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public Assembler(ISADefinition isaDefinition)
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{
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if (LexerDefinition.TryParse(LexDefinition, out definition))
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{
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definition.Substitute();
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}
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ISA = isaDefinition;
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}
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public OperationResult<LexSegment?> Lex(ILexer lexer)
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{
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@@ -113,11 +115,32 @@ LabelConstant InternalLbl
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{
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return operationResult;
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}
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if (!assemblerFunctions.TryGetValue(LexDef.LexMatchedItemId, out var assemblerFunction))
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if (!ISA.InstructionDefinitions.TryGetValue(LexDef.LexMatchedItemId, out var instructionDef))
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{
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return operationResult;
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}
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return assemblerFunction(lexer, intermediateInstruction, LexDef);
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foreach (var item in instructionDef.ParameterPattern)
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{
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var next = Lex(lexer);
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if (operationResult.CheckAndInheritErrorAndWarnings(next))
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{
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return operationResult;
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}
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if (next.Result is null)
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{
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return operationResult;
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}
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if (next.Result.LexSegmentId is null)
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{
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return operationResult;
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}
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if (!item.AllowedTokenIds.Contains(next.Result.LexSegmentId))
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{
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return operationResult;
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}
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intermediateInstruction.Parameters.Add(next.Result);
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}
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return intermediateInstruction;
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}
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public OperationResult<IntermediateObject> AssembleIntermediateObject(string input, string ID = "main.asm")
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{
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21
src/SVM.Assembler.Core/ISADefinition.cs
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21
src/SVM.Assembler.Core/ISADefinition.cs
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@@ -0,0 +1,21 @@
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using SVM.Core;
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using System.Collections.Generic;
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namespace SVM.Assembler.Core
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{
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public class ISADefinition
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{
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public Dictionary<string, InstructionDefinition> InstructionDefinitions = new Dictionary<string, InstructionDefinition>();
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public Dictionary<PrimaryInstruction, LinkerFunction> LinkerFunctions = new Dictionary<PrimaryInstruction, LinkerFunction>();
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public void Init()
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{
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foreach (var item in InstructionDefinitions)
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{
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if (!LinkerFunctions.TryAdd(item.Value.PrimaryInstruction, item.Value.linkerFunction))
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{
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LinkerFunctions[item.Value.PrimaryInstruction] = item.Value.linkerFunction;
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}
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}
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}
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}
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}
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21
src/SVM.Assembler.Core/InstructionDefinition.cs
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21
src/SVM.Assembler.Core/InstructionDefinition.cs
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@@ -0,0 +1,21 @@
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using SVM.Core;
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using System;
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using System.Collections.Generic;
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namespace SVM.Assembler.Core
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{
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[Serializable]
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public class InstructionDefinition
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{
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public string MatchID;
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public PrimaryInstruction PrimaryInstruction;
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public LinkerFunction linkerFunction;
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public InstructionDefinition(string matchID, LinkerFunction assemblerFunction)
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{
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MatchID = matchID;
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this.linkerFunction = assemblerFunction;
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}
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public List<InstructionParameter> ParameterPattern = new List<InstructionParameter>();
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}
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}
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9
src/SVM.Assembler.Core/InstructionParameter.cs
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9
src/SVM.Assembler.Core/InstructionParameter.cs
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@@ -0,0 +1,9 @@
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using System.Collections.Generic;
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namespace SVM.Assembler.Core
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{
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public class InstructionParameter
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{
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public List<string> AllowedTokenIds = new List<string>();
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}
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}
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@@ -1,6 +1,10 @@
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using LibCLCC.NET.Operations;
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using SVM.Core;
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using SVM.Core.Utils;
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using System;
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using System.Collections.Generic;
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using System.Reflection.Emit;
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using System.Text;
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namespace SVM.Assembler.Core
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{
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@@ -33,10 +37,46 @@ namespace SVM.Assembler.Core
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}
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return operationResult;
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}
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public static OperationResult<ManagedSVMProgram?> Freeze(List<IntermediateObject> objs)
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public unsafe static OperationResult<ManagedSVMProgram?> Finialize(ISADefinition definition, IntermediateObject Obj)
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{
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OperationResult<ManagedSVMProgram?> operationResult = new OperationResult<ManagedSVMProgram?>(null);
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ManagedSVMProgram program = new ManagedSVMProgram();
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LinkingContext context = new LinkingContext(program, Obj);
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List<byte[]> Data = new List<byte[]>();
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uint offset = 0;
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foreach (var item in Obj.data)
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{
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var data = Encoding.UTF8.GetBytes(item.Value);
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byte[] data2 = new byte[data.Length + sizeof(int)];
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fixed (byte* ptr = data2)
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{
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int len = data.Length;
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((IntPtr)ptr).SetData(len);
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}
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Buffer.BlockCopy(data, 0, data2, sizeof(int), data.Length);
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context.DataOffsets.Add(item.Key, offset);
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offset += (uint)data2.Length;
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Data.Add(data);
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}
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foreach (var item in Obj.instructions)
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{
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if (definition.LinkerFunctions.TryGetValue(item.inst, out var func))
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{
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var inst = func(context, item);
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if (operationResult.CheckAndInheritErrorAndWarnings(inst))
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{
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return operationResult;
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}
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program.instructions.Add(inst.Result);
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}
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}
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program.Datas = new byte[offset];
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int offset2 = 0;
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foreach (var item in Data)
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{
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Buffer.BlockCopy(item, 0, program.Datas, offset2, item.Length);
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offset2 += item.Length;
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}
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return operationResult;
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}
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}
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38
src/SVM.Assembler.Core/LinkingContext.cs
Normal file
38
src/SVM.Assembler.Core/LinkingContext.cs
Normal file
@@ -0,0 +1,38 @@
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using SVM.Core;
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using System.Collections.Generic;
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namespace SVM.Assembler.Core
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{
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public class LinkingContext
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{
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public Dictionary<string, uint> DataOffsets = new Dictionary<string, uint>();
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public ManagedSVMProgram Program;
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public Dictionary<string, int> label = new Dictionary<string, int>();
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public IntermediateObject IntermediateObject;
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public LinkingContext(ManagedSVMProgram program, IntermediateObject intermediateObject)
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{
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Program = program;
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IntermediateObject = intermediateObject;
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}
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public bool TryFindLabel(string label, out int offset)
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{
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label = label + ":";
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if (this.label.TryGetValue(label, out offset))
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{
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return true;
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}
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for (int i = 0; i < IntermediateObject.instructions.Count; i++)
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{
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IntermediateInstruction? item = IntermediateObject.instructions[i];
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if (item.Label != null)
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if (item.Label.Content == label)
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{
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this.label.Add(label, i);
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offset = i;
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return true;
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}
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}
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return false;
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}
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}
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}
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@@ -3,6 +3,7 @@
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<PropertyGroup>
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<TargetFramework>netstandard2.1</TargetFramework>
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<Nullable>enable</Nullable>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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</PropertyGroup>
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<ItemGroup>
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@@ -8,7 +8,7 @@ namespace SVM.Core
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public unsafe class ManagedSVMProgram
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{
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public List<SVMInstruction> instructions = new List<SVMInstruction>();
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public List<byte> Datas = new List<byte>();
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public byte[]? Datas;
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}
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public unsafe struct SVMProgram : IDisposable
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{
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@@ -41,5 +41,10 @@ namespace SVM.Core.Utils
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{
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GetDataWithOffsetInStructCount<T>(ptr, (IntPtr)dest, offset);
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}
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public static void SetData<T>(this IntPtr ptr, T data) where T : unmanaged
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{
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var srcPtr = (byte*)&data;
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Buffer.MemoryCopy(srcPtr, (byte*)ptr, sizeof(T), sizeof(T));
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}
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}
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}
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