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BizHawk
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GG: Link support initial capability

This commit is contained in:
alyosha-tas 2019-05-08 17:39:15 -04:00
parent 038bab2bff
commit be0f5f81cc
4 changed files with 132 additions and 10 deletions
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120
BizHawk.Emulation.Cores/Consoles/Sega/GGHawkLink/GGHawkLink.IEmulator.cs
View File

@ -10,6 +10,8 @@ namespace BizHawk.Emulation.Cores.Sega.GGHawkLink
public ControllerDefinition ControllerDefinition => _controllerDeck.Definition;
public int L_NMI_CD, R_NMI_CD;
public bool FrameAdvance(IController controller, bool render, bool rendersound)
{
//Console.WriteLine("-----------------------FRAME-----------------------");
@ -62,6 +64,33 @@ namespace BizHawk.Emulation.Cores.Sega.GGHawkLink
L.FrameAdvancePrep();
R.FrameAdvancePrep();
if (!_cableconnected)
{
if ((L.Port05 & 0x38) == 0x38)
{
L.Port05 |= 4;
L.Cpu.NonMaskableInterrupt = true;
}
if ((R.Port05 & 0x38) == 0x38)
{
R.Port05 |= 4;
R.Cpu.NonMaskableInterrupt = true;
}
}
else
{
if ((L.Port05 & 0x38) == 0x38)
{
L.Port05 &= 0xFB;
}
if ((R.Port05 & 0x38) == 0x38)
{
R.Port05 &= 0xFB;
}
}
int scanlinesPerFrame = 262;
L.Vdp.ScanLine = 0;
@ -84,11 +113,92 @@ namespace BizHawk.Emulation.Cores.Sega.GGHawkLink
L.Cpu.ExecuteOne();
R.Cpu.ExecuteOne();
/*
*
* Linking code goes here
*
*/
// linking code
if (L.p3_write)
{
L.p3_write = false;
if (((L.Port05 & 0x38) == 0x38) && _cableconnected)
{
L.Port05 |= 1;
if ((R.Port05 & 0x38) == 0x38)
{
R.Port05 |= 2;
R.Port04 = L.Port03;
R_NMI_CD = 256;
//R.Cpu.NonMaskableInterrupt = true;
}
}
}
if (L.p4_read)
{
L.p4_read = false;
L.Cpu.NonMaskableInterrupt = false;
if (((L.Port05 & 0x38) == 0x38) && _cableconnected)
{
L.Port05 &= 0xFD;
if ((R.Port05 & 0x38) == 0x38)
{
R.Port05 &= 0xFE;
}
}
}
if (R.p3_write)
{
R.p3_write = false;
if (((R.Port05 & 0x38) == 0x38) && _cableconnected)
{
R.Port05 |= 1;
if ((L.Port05 & 0x38) == 0x38)
{
L.Port05 |= 2;
L.Port04 = R.Port03;
L_NMI_CD = 256;
//L.Cpu.NonMaskableInterrupt = true;
}
}
}
if (R.p4_read)
{
R.p4_read = false;
R.Cpu.NonMaskableInterrupt = false;
if (((R.Port05 & 0x38) == 0x38) && _cableconnected)
{
R.Port05 &= 0xFD;
if ((L.Port05 & 0x38) == 0x38)
{
L.Port05 &= 0xFE;
}
}
}
if (L_NMI_CD > 0)
{
L_NMI_CD--;
if (L_NMI_CD == 0)
{
L.Cpu.NonMaskableInterrupt = true;
}
}
if (R_NMI_CD > 0)
{
R_NMI_CD--;
if (R_NMI_CD == 0)
{
R.Cpu.NonMaskableInterrupt = true;
}
}
L.PSG.generate_sound();
R.PSG.generate_sound();

2
BizHawk.Emulation.Cores/Consoles/Sega/GGHawkLink/GGHawkLink.IStatable.cs
View File

@ -59,6 +59,8 @@ namespace BizHawk.Emulation.Cores.Sega.GGHawkLink
ser.Sync(nameof(_cableconnected), ref _cableconnected);
ser.Sync(nameof(_cablediscosignal), ref _cablediscosignal);
ser.Sync(nameof(do_r_next), ref do_r_next);
ser.Sync(nameof(L_NMI_CD), ref L_NMI_CD);
ser.Sync(nameof(L_NMI_CD), ref R_NMI_CD);
_controllerDeck.SyncState(ser);
}
}

4
BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.IStatable.cs
View File

@ -64,6 +64,8 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
ser.Sync(nameof(Bios_bank), ref Bios_bank);
ser.Sync(nameof(Port01), ref Port01);
ser.Sync(nameof(Port02), ref Port02);
ser.Sync(nameof(Port03), ref Port03);
ser.Sync(nameof(Port04), ref Port04);
ser.Sync(nameof(Port05), ref Port05);
ser.Sync(nameof(Port3E), ref Port3E);
ser.Sync(nameof(Port3F), ref Port3F);
@ -74,6 +76,8 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
ser.Sync(nameof(cntr_rd_0), ref cntr_rd_0);
ser.Sync(nameof(cntr_rd_1), ref cntr_rd_1);
ser.Sync(nameof(cntr_rd_2), ref cntr_rd_2);
ser.Sync(nameof(p3_write), ref p3_write);
ser.Sync(nameof(p4_read), ref p4_read);
ser.Sync(nameof(stand_alone), ref stand_alone);
ser.Sync(nameof(disablePSG), ref disablePSG);
ser.Sync(nameof(sampleclock), ref sampleclock);

16
BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.cs
View File

@ -245,8 +245,10 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
private int _frame = 0;
private byte Port01 = 0xFF;
private byte Port02 = 0xFF;
private byte Port05 = 0x00;
public byte Port02 = 0xFF;
public byte Port03 = 0x00;
public byte Port04 = 0xFF;
public byte Port05 = 0x00;
private byte Port3E = 0xAF;
private byte Port3F = 0xFF;
private byte PortDE = 0x00;
@ -260,6 +262,8 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
public byte cntr_rd_1;
public byte cntr_rd_2;
public bool stand_alone = true;
public bool p3_write;
public bool p4_read;
public DisplayType Region { get; set; }
@ -345,8 +349,8 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
case 0x00: if (stand_alone) { return ReadPort0(); } else { _lagged = false; return cntr_rd_0; }
case 0x01: return Port01;
case 0x02: return Port02;
case 0x03: return 0x00;
case 0x04: return 0xFF;
case 0x03: return Port03;
case 0x04: p4_read = true; return Port04;
case 0x05: return Port05;
case 0x06: return 0xFF;
case 0x3E: return Port3E;
@ -388,7 +392,9 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
{
case 0x01: Port01 = value; break;
case 0x02: Port02 = value; break;
case 0x05: Port05 = value; break;
case 0x03: p3_write = true; Port03 = value; break;
case 0x04: /*Port04 = value*/; break; // receive port, not sure what writing does
case 0x05: Port05 = (byte)(value & 0xF8); break;
case 0x06: PSG.Set_Panning(value); break;
case 0x3E: Port3E = value; break;
case 0x3F: Port3F = value; break;