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partial fix for issue #537 (RAM writes to read port)

This commit is contained in:
Thomas Jentzsch 2019-09-12 11:08:26 +02:00
parent 4e8d7a2d5b
commit 77c00f0f68
7 changed files with 93 additions and 14 deletions
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15
src/emucore/Cart3E.cxx
View File

@ -113,10 +113,23 @@ bool Cartridge3E::poke(uInt16 address, uInt8 value)
return mySystem->tia().poke(address, value);
}
else
{
if(address & 0x0400)
{
pokeRAM(myRAM[(address & 0x03FF) + ((myCurrentBank - 256) << 10)], pokeAddress, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, pokeAddress, value);
return false;
}
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool Cartridge3E::bank(uInt16 bank)

11
src/emucore/Cart4KSC.cxx
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@ -82,10 +82,21 @@ uInt8 Cartridge4KSC::peek(uInt16 address)
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool Cartridge4KSC::poke(uInt16 address, uInt8 value)
{
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], address, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, address, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool Cartridge4KSC::patch(uInt16 address, uInt8 value)

11
src/emucore/CartBFSC.cxx
View File

@ -98,9 +98,20 @@ bool CartridgeBFSC::poke(uInt16 address, uInt8 value)
return false;
}
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], pokeAddress, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, pokeAddress, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool CartridgeBFSC::bank(uInt16 bank)

11
src/emucore/CartEFSC.cxx
View File

@ -98,9 +98,20 @@ bool CartridgeEFSC::poke(uInt16 address, uInt8 value)
return false;
}
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], pokeAddress, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, pokeAddress, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool CartridgeEFSC::bank(uInt16 bank)

11
src/emucore/CartF4SC.cxx
View File

@ -98,9 +98,20 @@ bool CartridgeF4SC::poke(uInt16 address, uInt8 value)
return false;
}
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], pokeAddress, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, pokeAddress, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool CartridgeF4SC::bank(uInt16 bank)

11
src/emucore/CartF6SC.cxx
View File

@ -138,9 +138,20 @@ bool CartridgeF6SC::poke(uInt16 address, uInt8 value)
break;
}
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], address, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, address, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool CartridgeF6SC::bank(uInt16 bank)

11
src/emucore/CartF8SC.cxx
View File

@ -118,9 +118,20 @@ bool CartridgeF8SC::poke(uInt16 address, uInt8 value)
break;
}
if(address & 0x080)
{
pokeRAM(myRAM[address & 0x007F], address, value);
return true;
}
else
{
// Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
uInt8 dummy;
pokeRAM(dummy, address, value);
return false;
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
bool CartridgeF8SC::bank(uInt16 bank)