112 lines
4.7 KiB
C#
112 lines
4.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
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{
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/// <summary>
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/// ZXHawk: Core Class
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/// * Memory Domains *
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/// </summary>
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public partial class ZXSpectrum
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{
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internal IMemoryDomains memoryDomains;
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private readonly Dictionary<string, MemoryDomainByteArray> _byteArrayDomains = new Dictionary<string, MemoryDomainByteArray>();
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private bool _memoryDomainsInit = false;
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private void SetupMemoryDomains()
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{
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var domains = new List<MemoryDomain>
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{
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new MemoryDomainDelegate("System Bus", 0x10000, MemoryDomain.Endian.Little,
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(addr) =>
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{
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if (addr < 0 || addr >= 65536)
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{
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throw new ArgumentOutOfRangeException();
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}
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return _machine.ReadBus((ushort)addr);
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},
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(addr, value) =>
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{
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if (addr < 0 || addr >= 65536)
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{
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throw new ArgumentOutOfRangeException();
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}
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_machine.WriteBus((ushort)addr, value);
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}, 1)
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};
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SyncAllByteArrayDomains();
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memoryDomains = new MemoryDomainList(_byteArrayDomains.Values.Concat(domains).ToList());
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(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(memoryDomains);
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_memoryDomainsInit = true;
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}
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private void SyncAllByteArrayDomains()
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{
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switch (_machineType)
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{
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case MachineType.ZXSpectrum16:
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SyncByteArrayDomain("ROM - 48K BASIC", _machine.ROM0);
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SyncByteArrayDomain("RAM - BANK 0 (Screen)", _machine.RAM0);
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break;
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case MachineType.ZXSpectrum48:
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SyncByteArrayDomain("ROM - 48K BASIC", _machine.ROM0);
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SyncByteArrayDomain("RAM - BANK 0 (Screen)", _machine.RAM0);
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SyncByteArrayDomain("RAM - BANK 1", _machine.RAM1);
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SyncByteArrayDomain("RAM - BANK 2", _machine.RAM2);
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break;
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case MachineType.ZXSpectrum128:
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case MachineType.ZXSpectrum128Plus2:
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SyncByteArrayDomain("ROM - 128K Editor & Menu", _machine.ROM0);
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SyncByteArrayDomain("ROM - 48K BASIC", _machine.ROM1);
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SyncByteArrayDomain("RAM - BANK 5 (Screen)", _machine.RAM5);
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SyncByteArrayDomain("RAM - BANK 2", _machine.RAM2);
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SyncByteArrayDomain("RAM - BANK 0", _machine.RAM0);
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SyncByteArrayDomain("RAM - BANK 1", _machine.RAM1);
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SyncByteArrayDomain("RAM - BANK 3", _machine.RAM3);
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SyncByteArrayDomain("RAM - BANK 4", _machine.RAM4);
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SyncByteArrayDomain("RAM - BANK 6", _machine.RAM6);
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SyncByteArrayDomain("RAM - BANK 7 (Shadow Screen)", _machine.RAM7);
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break;
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case MachineType.ZXSpectrum128Plus2a:
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case MachineType.ZXSpectrum128Plus3:
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SyncByteArrayDomain("ROM - 128K Editor & Menu", _machine.ROM0);
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SyncByteArrayDomain("ROM - 128K Syntax Checker", _machine.ROM1);
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SyncByteArrayDomain("ROM - +3DOS", _machine.ROM2);
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SyncByteArrayDomain("ROM - 48K BASIC", _machine.ROM3);
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SyncByteArrayDomain("RAM - BANK 5 (Screen)", _machine.RAM5);
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SyncByteArrayDomain("RAM - BANK 2", _machine.RAM2);
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SyncByteArrayDomain("RAM - BANK 0", _machine.RAM0);
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SyncByteArrayDomain("RAM - BANK 1", _machine.RAM1);
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SyncByteArrayDomain("RAM - BANK 3", _machine.RAM3);
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SyncByteArrayDomain("RAM - BANK 4", _machine.RAM4);
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SyncByteArrayDomain("RAM - BANK 6", _machine.RAM6);
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SyncByteArrayDomain("RAM - BANK 7 (Shadow Screen)", _machine.RAM7);
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break;
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}
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}
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private void SyncByteArrayDomain(string name, byte[] data)
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{
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if (_memoryDomainsInit || _byteArrayDomains.ContainsKey(name))
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{
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var m = _byteArrayDomains[name];
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m.Data = data;
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}
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else
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{
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var m = new MemoryDomainByteArray(name, MemoryDomain.Endian.Little, data, true, 1);
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_byteArrayDomains.Add(name, m);
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}
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}
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}
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}
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