46 lines
1.1 KiB
C#
46 lines
1.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Text;
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namespace SVM.Instructions
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{
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class LOADI : Instruction
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{
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public override string ASM => "LOADI";
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public override byte OP => 0x60;
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public override byte[] Encode(string asm, Dictionary<string, ushort> markerRefs)
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{
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var reg = Register.FromASM(asm);
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return new byte[] { OP, reg };
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}
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public override byte[] Decode(VM vm)
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{
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var reg = vm.MEM[vm.PC];
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vm.PC++;
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return new byte[] { reg };
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}
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public override void Exec(VM vm, byte[] vars)
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{
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Debug.Assert(vars.Length == 1);
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var reg = vars[0];
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Debug.Assert(reg <= VM.REGISTERS);
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Run(vm, reg);
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}
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protected virtual void Run(VM vm, byte reg)
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{
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vm.R[reg] = vm.MEM[vm.RI];
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}
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public override string ToASM(byte[] vars)
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{
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return string.Format("{0} {1}", ASM, Register.ToASM(vars[0]));
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}
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}
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}
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