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Add data bus state and track it 

fixes AVGN KO boxing
This commit is contained in:
alyosha-tas 2016-05-23 20:31:55 -04:00
parent c80e250ae7
commit 7a16d7c49a
1 changed files with 14 additions and 8 deletions
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10
BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.Core.cs
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@ -36,9 +36,11 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
if ((addr & 0x1080) == 0x0080)
{
_tia.bus_state = M6532.ReadMemory(addr, false);
return M6532.ReadMemory(addr, false);
}
_tia.bus_state = Rom[addr & 0x0FFF];
return Rom[addr & 0x0FFF];
}
@ -52,14 +54,16 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
if ((addr & 0x1080) == 0x0080)
{
_tia.bus_state = M6532.ReadMemory(addr, false);
return M6532.ReadMemory(addr, true);
}
_tia.bus_state = Rom[addr & 0x0FFF];
return Rom[addr & 0x0FFF];
}
internal void BaseWriteMemory(ushort addr, byte value)
{
_tia.bus_state = value;
if (addr != LastAddress)
{
DistinctAccessCount++;
@ -83,6 +87,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
internal void BasePokeMemory(ushort addr, byte value)
{
_tia.bus_state = value;
addr = (ushort)(addr & 0x1FFF);
if ((addr & 0x1080) == 0)
{
@ -108,6 +113,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
_mapper.Bit13 = addr.Bit(13);
var temp = _mapper.ReadMemory((ushort)(addr & 0x1FFF));
_tia.bus_state = temp;
MemoryCallbacks.CallReads(addr);
return temp;
@ -116,7 +122,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
internal byte PeekMemory(ushort addr)
{
var temp = _mapper.ReadMemory((ushort)(addr & 0x1FFF));
_tia.bus_state = temp;
return temp;
}