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Saturnus: ISaverammable. The 32K internal is saved, followed by the 512K external if present. On load, if sizes do not match, nothing is loaded. Yahbooze 64K saverams are not loaded.

This commit is contained in:
nattthebear 2017-06-08 19:45:56 -04:00
parent a42631fadc
commit aa2ec9b9e2
1 changed files with 60 additions and 8 deletions
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68
BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
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@ -1,4 +1,5 @@
using BizHawk.Common.BizInvoke;
using BizHawk.Common;
using BizHawk.Common.BizInvoke;
using BizHawk.Common.BufferExtensions;
using BizHawk.Emulation.Common;
using BizHawk.Emulation.Cores.Waterbox;
@ -16,7 +17,8 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
{
[CoreAttributes("Saturnus", "Ryphecha", true, false, "0.9.44.1",
"https://mednafen.github.io/releases/", false)]
public class Saturnus : IEmulator, IVideoProvider, ISoundProvider, IInputPollable, IDriveLight, IStatable, IRegionable
public class Saturnus : IEmulator, IVideoProvider, ISoundProvider,
IInputPollable, IDriveLight, IStatable, IRegionable, ISaveRam
{
private static readonly DiscSectorReaderPolicy _diskPolicy = new DiscSectorReaderPolicy
{
@ -96,10 +98,11 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
_exe.Seal();
SetCdCallbacks();
_core.SetDisk(0, false);
(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(new MemoryDomainList(_memoryDomains.Values.ToList())
{
MainMemory = _memoryDomains["Work Ram Low"]
});
(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(
new MemoryDomainList(_memoryDomains.Values.Cast<MemoryDomain>().ToList())
{
MainMemory = _memoryDomains["Work Ram Low"]
});
}
public unsafe void FrameAdvance(IController controller, bool render, bool rendersound = true)
@ -165,7 +168,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
#region IMemoryDomains
private readonly Dictionary<string, MemoryDomain> _memoryDomains = new Dictionary<string, MemoryDomain>();
private readonly Dictionary<string, MemoryDomainIntPtrMonitor> _memoryDomains = new Dictionary<string, MemoryDomainIntPtrMonitor>();
private void AddMemoryDomain(string name, IntPtr ptr, int size, bool writable)
{
@ -382,9 +385,58 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
}
public bool CanProvideAsync => false;
public SyncSoundMode SyncMode => SyncSoundMode.Sync;
#endregion
#region ISaveRam
private static readonly string[] SaveRamDomains = new[] { "Backup Ram", "Backup Cart" };
private int SaveRamSize()
{
return ActiveSaveRamDomains()
.Select(m => (int)m.Size)
.Sum();
}
private IEnumerable<MemoryDomainIntPtrMonitor> ActiveSaveRamDomains()
{
return SaveRamDomains.Where(_memoryDomains.ContainsKey)
.Select(s => _memoryDomains[s]);
}
public byte[] CloneSaveRam()
{
var ret = new byte[SaveRamSize()];
var offs = 0;
using (_exe.EnterExit())
{
foreach (var m in ActiveSaveRamDomains())
{
Marshal.Copy(m.Data, ret, offs, (int)m.Size);
offs += (int)m.Size;
}
}
return ret;
}
public void StoreSaveRam(byte[] data)
{
if (data.Length != SaveRamSize())
throw new InvalidOperationException("Saveram was the wrong size!");
var offs = 0;
using (_exe.EnterExit())
{
foreach (var m in ActiveSaveRamDomains())
{
Marshal.Copy(data, offs, m.Data, (int)m.Size);
offs += (int)m.Size;
}
}
}
public bool SaveRamModified => true;
#endregion
}
}