45 lines
1.1 KiB
C#
45 lines
1.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace AxibugEmuOnline.Client.UNES
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{
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sealed partial class CPU
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void WriteIoRegister(uint reg, byte val)
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{
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switch (reg)
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{
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case 0x4014: // OAM DMA
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_emulator.PPU.PerformDMA(val);
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break;
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case 0x4016:
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_emulator.Controller.Strobe(val == 1);
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break;
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}
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if (reg <= 0x401F)
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{
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return; // APU write
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}
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throw new NotImplementedException($"{reg:X4} = {val:X2}");
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}
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public uint ReadIORegister(uint reg)
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{
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switch (reg)
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{
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case 0x4016:
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return (uint) _emulator.Controller.ReadState() & 0x1;
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}
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return 0x00;
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//throw new NotImplementedException();
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}
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}
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}
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