public byte[] GetSZXSnapshot()
{
return(SZX.ExportSZX(_machine));
//return System.Text.Encoding.Default.GetString(data);
}
/// <summary>
/// Exports state information to a byte array in ZX-State format
/// </summary>
/// <param name="machine"></param>
/// <returns></returns>
public static byte[] ExportSZX(SpectrumBase machine)
{
var s = new SZX(machine);
byte[] result = null;
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter r = new BinaryWriter(ms))
{
// temp buffer
byte[] buff;
// working block
ZXSTBLOCK block = new ZXSTBLOCK();
// header
ZXSTHEADER header = new ZXSTHEADER();
header.dwMagic = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("ZXST"), 0);
header.chMajorVersion = 1;
header.chMinorVersion = 4;
header.chFlags = 0;
switch (s._machine.Spectrum.MachineType)
{
case MachineType.ZXSpectrum16: header.chMachineId = (int)MachineIdentifier.ZXSTMID_16K; break;
case MachineType.ZXSpectrum48: header.chMachineId = (int)MachineIdentifier.ZXSTMID_48K; break;
case MachineType.ZXSpectrum128: header.chMachineId = (int)MachineIdentifier.ZXSTMID_128K; break;
case MachineType.ZXSpectrum128Plus2: header.chMachineId = (int)MachineIdentifier.ZXSTMID_PLUS2; break;
case MachineType.ZXSpectrum128Plus2a: header.chMachineId = (int)MachineIdentifier.ZXSTMID_PLUS2A; break;
case MachineType.ZXSpectrum128Plus3: header.chMachineId = (int)MachineIdentifier.ZXSTMID_PLUS3; break;
}
buff = MediaConverter.SerializeRaw(header);
r.Write(buff);
// ZXSTCREATOR
var bStruct = s.GetZXSTCREATOR();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("CRTR"), 0);
block.dwSize = (uint)Marshal.SizeOf(bStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(bStruct);
r.Write(buff);
// ZXSTZ80REGS
var cStruct = s.GetZXSTZ80REGS();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("Z80R"), 0);
block.dwSize = (uint)Marshal.SizeOf(cStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(cStruct);
r.Write(buff);
// ZXSTSPECREGS
var dStruct = s.GetZXSTSPECREGS();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("SPCR"), 0);
block.dwSize = (uint)Marshal.SizeOf(dStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(dStruct);
r.Write(buff);
// ZXSTKEYBOARD
var eStruct = s.GetZXSTKEYBOARD();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("KEYB"), 0);
block.dwSize = (uint)Marshal.SizeOf(eStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(eStruct);
r.Write(buff);
// ZXSTJOYSTICK
var fStruct = s.GetZXSTJOYSTICK();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("JOY\0"), 0);
block.dwSize = (uint)Marshal.SizeOf(fStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(fStruct);
r.Write(buff);
// ZXSTAYBLOCK
if (s._machine.Spectrum.MachineType != MachineType.ZXSpectrum16 && s._machine.Spectrum.MachineType != MachineType.ZXSpectrum48)
{
var gStruct = s.GetZXSTAYBLOCK();
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("AY\0\0"), 0);
block.dwSize = (uint)Marshal.SizeOf(gStruct);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(gStruct);
r.Write(buff);
}
// ZXSTRAMPAGE
switch (s._machine.Spectrum.MachineType)
{
// For 16k Spectrums, only page 5 (0x4000 - 0x7fff) is saved.
case MachineType.ZXSpectrum16:
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("RAMP"), 0);
var rp16 = s.GetZXSTRAMPAGE(5, s._machine.RAM0);
block.dwSize = (uint)Marshal.SizeOf(rp16);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(rp16);
r.Write(buff);
break;
// For 48k Spectrums and Timex TS/TC models, pages 5, 2 (0x8000 - 0xbfff) and 0 (0xc000 - 0xffff) are saved.
case MachineType.ZXSpectrum48:
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("RAMP"), 0);
var rp48_0 = s.GetZXSTRAMPAGE(5, s._machine.RAM0);
block.dwSize = (uint)Marshal.SizeOf(rp48_0);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(rp48_0);
r.Write(buff);
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("RAMP"), 0);
var rp48_1 = s.GetZXSTRAMPAGE(5, s._machine.RAM1);
block.dwSize = (uint)Marshal.SizeOf(rp48_1);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(rp48_1);
r.Write(buff);
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("RAMP"), 0);
var rp48_2 = s.GetZXSTRAMPAGE(5, s._machine.RAM2);
block.dwSize = (uint)Marshal.SizeOf(rp48_2);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(rp48_2);
r.Write(buff);
break;
// For 128k Spectrums and the Pentagon 128, all pages (0-7) are saved.
case MachineType.ZXSpectrum128:
case MachineType.ZXSpectrum128Plus2:
case MachineType.ZXSpectrum128Plus2a:
case MachineType.ZXSpectrum128Plus3:
List <byte[]> rams = new List <byte[]>
{
s._machine.RAM0, s._machine.RAM1, s._machine.RAM2, s._machine.RAM3,
s._machine.RAM4, s._machine.RAM5, s._machine.RAM6, s._machine.RAM7
};
for (byte i = 0; i < 8; i++)
{
block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("RAMP"), 0);
var rp = s.GetZXSTRAMPAGE(i, rams[i]);
block.dwSize = (uint)Marshal.SizeOf(rp);
buff = MediaConverter.SerializeRaw(block);
r.Write(buff);
buff = MediaConverter.SerializeRaw(rp);
r.Write(buff);
}
break;
}
/*
* // ZXSTPLUS3
* if (s._machine.Spectrum.MachineType == MachineType.ZXSpectrum128Plus3)
* {
* var iStruct = s.GetZXSTPLUS3();
* block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("+3\0\0"), 0);
* block.dwSize = (uint)Marshal.SizeOf(iStruct);
* buff = MediaConverter.SerializeRaw(block);
* r.Write(buff);
* buff = MediaConverter.SerializeRaw(iStruct);
* r.Write(buff);
*
* // ZXSTDSKFILE
* if (s._machine.diskImages.Count() > 0)
* {
* var jStruct = s.GetZXSTDSKFILE();
* block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("DSK\0"), 0);
* block.dwSize = (uint)Marshal.SizeOf(jStruct);
* buff = MediaConverter.SerializeRaw(block);
* r.Write(buff);
* buff = MediaConverter.SerializeRaw(jStruct);
* r.Write(buff);
* }
* }
*
* // ZXSTTAPE
* if (s._machine.tapeImages.Count() > 0)
* {
* var hStruct = s.GetZXSTTAPE();
* var tapeData = s._machine.tapeImages[s._machine.TapeMediaIndex];
* block.dwId = MediaConverter.GetUInt32(Encoding.UTF8.GetBytes("TAPE"), 0);
* block.dwSize = (uint)Marshal.SizeOf(hStruct) + (uint)tapeData.Length;
* buff = MediaConverter.SerializeRaw(block);
* r.Write(buff);
* buff = MediaConverter.SerializeRaw(hStruct);
* r.Write(buff);
* buff = MediaConverter.SerializeRaw(tapeData);
* r.Write(buff);
* char[] terminator = "\0".ToCharArray();
* r.Write(terminator);
* }
*/
}
result = ms.ToArray();
}
return(result);
}
/// <summary>
/// Called by MainForm - dumps a close approximation of the Spectaculator SZX snapshot format
/// DEV use only - this is nowhere near accurate
/// </summary>
public byte[] GetSZXSnapshot()
{
return(SZX.ExportSZX(_machine));
}
