60 lines
1.9 KiB
C#
60 lines
1.9 KiB
C#
using System;
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namespace DotN64.RCP
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{
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using Helpers;
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public partial class RealityCoprocessor
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{
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public partial class SerialInterface : Interface
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{
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#region Properties
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private PeripheralInterface PIF => rcp.nintendo64.PIF;
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public Statuses Status { get; set; }
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#endregion
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#region Constructors
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public SerialInterface(RealityCoprocessor rcp)
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: base(rcp)
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{
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MemoryMaps = new[]
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{
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new MappingEntry(0x04800018, 0x0480001B) // SI status.
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{
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Read = o => (uint)Status,
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Write = (o, d) =>
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{
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Status &= ~Statuses.Interrupt;
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rcp.MI.Interrupt &= ~MIPSInterface.Interrupts.SI;
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}
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},
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new MappingEntry(0x1FC00000, 0x1FC007BF) // PIF Boot ROM.
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{
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Read = o => BitHelper.FromBigEndian(BitConverter.ToUInt32(PIF.BootROM, (int)o))
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},
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new MappingEntry(0x1FC007C0, 0x1FC007FF) // PIF (JoyChannel) RAM.
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{
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Read = o => BitConverter.ToUInt32(PIF.RAM, (int)o),
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Write = (o, d) =>
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{
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BitHelper.Write(PIF.RAM, (int)o, d);
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PIF.OnRAMWritten((int)o);
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Interrupt();
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}
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}
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};
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}
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#endregion
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#region Methods
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private void Interrupt()
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{
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Status |= Statuses.Interrupt;
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rcp.MI.Interrupt |= MIPSInterface.Interrupts.SI;
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}
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#endregion
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}
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}
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}
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