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BizHawk
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Scratchpad RAM, Graphics ROM, and Graphics RAM are apparently all 8-bit.

This commit is contained in:
brandman211 2012-08-10 20:40:34 +00:00
parent f42b96ba7d
commit c6cf18061f
4 changed files with 56 additions and 56 deletions
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12
BizHawk.Emulation/Consoles/Intellivision/Intellivision.cs
View File

@ -15,7 +15,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
STIC Stic;
PSG Psg;
public void LoadExecutive_ROM()
public void LoadExecutiveRom()
{
FileStream fs = new FileStream("C:/erom.int", FileMode.Open, FileAccess.Read);
BinaryReader r = new BinaryReader(fs);
@ -23,18 +23,18 @@ namespace BizHawk.Emulation.Consoles.Intellivision
int index = 0;
// Combine every two bytes into a word.
while (index + 1 < erom.Length)
Executive_ROM[index / 2] = (ushort)((erom[index++] << 8) | erom[index++]);
ExecutiveRom[index / 2] = (ushort)((erom[index++] << 8) | erom[index++]);
r.Close();
fs.Close();
}
public void LoadGraphics_ROM()
public void LoadGraphicsRom()
{
FileStream fs = new FileStream("C:/grom.int", FileMode.Open, FileAccess.Read);
BinaryReader r = new BinaryReader(fs);
byte[] grom = r.ReadBytes(2048);
for (int index = 0; index < grom.Length; index++)
Graphics_ROM[index] = grom[index];
GraphicsRom[index] = grom[index];
r.Close();
fs.Close();
}
@ -43,8 +43,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
Rom = rom;
Game = game;
LoadExecutive_ROM();
LoadGraphics_ROM();
LoadExecutiveRom();
LoadGraphicsRom();
Cart = new Intellicart();
if (Cart.Parse(Rom) == -1)
{

62
BizHawk.Emulation/Consoles/Intellivision/MemoryMap.cs
View File

@ -9,11 +9,11 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
private const ushort UNMAPPED = 0xFFFF;
private ushort[] Scratchpad_RAM = new ushort[240];
private ushort[] System_RAM = new ushort[352];
private ushort[] Executive_ROM = new ushort[4096]; // TODO: Intellivision II support?
private ushort[] Graphics_ROM = new ushort[2048];
private ushort[] Graphics_RAM = new ushort[512];
private byte[] ScratchpadRam = new byte[240];
private ushort[] SystemRam = new ushort[352];
private ushort[] ExecutiveRom = new ushort[4096]; // TODO: Intellivision II support?
private byte[] GraphicsRom = new byte[2048];
private byte[] GraphicsRam = new byte[512];
public ushort ReadMemory(ushort addr)
{
@ -31,12 +31,12 @@ namespace BizHawk.Emulation.Consoles.Intellivision
// Unoccupied.
break;
else if (addr <= 0x01EF)
core = Scratchpad_RAM[addr - 0x0100];
core = (ushort)(ScratchpadRam[addr - 0x0100] & 0x00FF);
else if (addr <= 0x01FF)
// PSG.
break;
else if (addr <= 0x035F)
core = System_RAM[addr - 0x0200];
core = SystemRam[addr - 0x0200];
else if (addr <= 0x03FF)
// TODO: Garbage values for Intellivision II.
break;
@ -45,24 +45,24 @@ namespace BizHawk.Emulation.Consoles.Intellivision
break;
break;
case 0x1000:
core = Executive_ROM[addr - 0x1000];
core = ExecutiveRom[addr - 0x1000];
break;
case 0x3000:
if (addr <= 0x37FF)
// TODO: OK only during VBlank Period 2.
core = Graphics_ROM[addr - 0x3000];
core = (byte)(GraphicsRom[addr - 0x3000] & 0x00FF);
else if (addr <= 0x39FF)
// TODO: OK only during VBlank Period 2.
core = Graphics_RAM[addr - 0x3800];
core = (byte)(GraphicsRam[addr - 0x3800] & 0x00FF);
else if (addr <= 0x3BFF)
// TODO: OK only during VBlank Period 2.
core = Graphics_RAM[addr - 0x3A00];
core = (byte)(GraphicsRam[addr - 0x3A00] & 0x00FF);
else if (addr <= 0x3DFF)
// TODO: OK only during VBlank Period 2.
core = Graphics_RAM[addr - 0x3C00];
core = (byte)(GraphicsRam[addr - 0x3C00] & 0x00FF);
else
// TODO: OK only during VBlank Period 2.
core = Graphics_RAM[addr - 0x3E00];
core = (byte)(GraphicsRam[addr - 0x3E00] & 0x00FF);
break;
case 0x7000:
if (addr <= 0x77FF)
@ -140,7 +140,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
break;
else if (addr <= 0x01EF)
{
Scratchpad_RAM[addr - 0x0100] = value;
ScratchpadRam[addr - 0x0100] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0x01FF)
@ -150,7 +150,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
}
else if (addr <= 0x035F)
{
System_RAM[addr - 0x0200] = value;
SystemRam[addr - 0x0200] = value;
return true;
}
else if (addr <= 0x03FF)
@ -170,25 +170,25 @@ namespace BizHawk.Emulation.Consoles.Intellivision
else if (addr <= 0x39FF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0x3800] = value;
GraphicsRam[addr - 0x3800] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0x3BFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0x3A00] = value;
GraphicsRam[addr - 0x3A00] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0x3DFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0x3C00] = value;
GraphicsRam[addr - 0x3C00] = (byte)(value & 0x00FF);
return true;
}
else
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0x3E00] = value;
GraphicsRam[addr - 0x3E00] = (byte)(value & 0x00FF);
return true;
}
case 0x7000:
@ -198,25 +198,25 @@ namespace BizHawk.Emulation.Consoles.Intellivision
else if (addr <= 0x79FF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr & 0x01FF] = value;
GraphicsRam[addr & 0x01FF] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0x7BFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr & 0x01FF] = value;
GraphicsRam[addr & 0x01FF] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0x7DFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr & 0x01FF] = value;
GraphicsRam[addr & 0x01FF] = (byte)(value & 0x00FF);
return true;
}
else
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr & 0x01FF] = value;
GraphicsRam[addr & 0x01FF] = (byte)(value & 0x00FF);
return true;
}
case 0x9000:
@ -228,25 +228,25 @@ namespace BizHawk.Emulation.Consoles.Intellivision
else if (addr <= 0xB9FF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xB800] = value;
GraphicsRam[addr - 0xB800] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0xBBFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xBA00] = value;
GraphicsRam[addr - 0xBA00] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0xBDFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xBC00] = value;
GraphicsRam[addr - 0xBC00] = (byte)(value & 0x00FF);
return true;
}
else
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xBE00] = value;
GraphicsRam[addr - 0xBE00] = (byte)(value & 0x00FF);
return true;
}
case 0xF000:
@ -256,25 +256,25 @@ namespace BizHawk.Emulation.Consoles.Intellivision
else if (addr <= 0xF9FF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xF800] = value;
GraphicsRam[addr - 0xF800] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0xFBFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xFA00] = value;
GraphicsRam[addr - 0xFA00] = (byte)(value & 0x00FF);
return true;
}
else if (addr <= 0xFDFF)
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xFC00] = value;
GraphicsRam[addr - 0xFC00] = (byte)(value & 0x00FF);
return true;
}
else
{
// TODO: OK only during VBlank Period 2.
Graphics_RAM[addr - 0xFE00] = value;
GraphicsRam[addr - 0xFE00] = (byte)(value & 0x00FF);
return true;
}
}

6
BizHawk.Emulation/Consoles/Intellivision/PSG.cs
View File

@ -7,12 +7,12 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
public sealed class PSG
{
private ushort[] Registers = new ushort[16];
private ushort[] Register = new ushort[16];
public ushort? ReadPSG(ushort addr)
{
if (addr >= 0x01F0 && addr <= 0x01FF)
return Registers[addr - 0x01F0];
return Register[addr - 0x01F0];
return null;
}
@ -20,7 +20,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
if (addr >= 0x01F0 && addr <= 0x01FF)
{
Registers[addr - 0x01F0] = value;
Register[addr - 0x01F0] = value;
return true;
}
return false;

32
BizHawk.Emulation/Consoles/Intellivision/STIC.cs
View File

@ -7,8 +7,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
public sealed class STIC
{
private ushort[] Registers = new ushort[64];
private bool FGBG = false;
private bool Sr1, Sr2, Fgbg = false;
private ushort[] Register = new ushort[64];
public ushort? ReadSTIC(ushort addr)
{
@ -19,19 +19,19 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x0021)
FGBG = false;
return Registers[addr];
Fgbg = false;
return Register[addr];
}
else if (addr <= 0x007F)
// TODO: OK only during VBlank Period 2.
return Registers[addr - 0x0040];
return Register[addr - 0x0040];
break;
case 0x4000:
if (addr <= 0x403F)
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x4021)
FGBG = false;
Fgbg = false;
}
break;
case 0x8000:
@ -39,7 +39,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x8021)
FGBG = false;
Fgbg = false;
}
break;
case 0xC000:
@ -47,7 +47,7 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0xC021)
FGBG = false;
Fgbg = false;
}
break;
}
@ -63,8 +63,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x0021)
FGBG = true;
Registers[addr] = value;
Fgbg = true;
Register[addr] = value;
return true;
}
else if (addr <= 0x007F)
@ -76,8 +76,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x4021)
FGBG = true;
Registers[addr - 0x4000] = value;
Fgbg = true;
Register[addr - 0x4000] = value;
return true;
}
break;
@ -86,8 +86,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0x8021)
FGBG = true;
Registers[addr & 0x003F] = value;
Fgbg = true;
Register[addr & 0x003F] = value;
return true;
}
break;
@ -96,8 +96,8 @@ namespace BizHawk.Emulation.Consoles.Intellivision
{
// TODO: OK only during VBlank Period 1.
if (addr == 0xC021)
FGBG = true;
Registers[addr - 0xC000] = value;
Fgbg = true;
Register[addr - 0xC000] = value;
return true;
}
break;