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Updated 0840 bankswitch autodetection for Toyshop trouble, thanks to 

Thomas J.


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@1832 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena 2009-07-03 22:09:19 +00:00
parent cae659abd3
commit 906659367f
1 changed files with 19 additions and 15 deletions
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34
src/emucore/Cart.cxx
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@ -475,10 +475,9 @@ bool Cartridge::isProbablyE0(const uInt8* image, uInt32 size)
{ 0xAD, 0xF3, 0xBF } // LDA $BFF3
};
for(uInt32 i = 0; i < 8; ++i)
{
if(searchForBytes(image, size, signature[i], 3, 1))
return true;
}
return false;
}
@ -499,10 +498,9 @@ bool Cartridge::isProbablyE7(const uInt8* image, uInt32 size)
{ 0x8D, 0xE7, 0x1F } // STA $1FE7
};
for(uInt32 i = 0; i < 5; ++i)
{
if(searchForBytes(image, size, signature[i], 3, 1))
return true;
}
return false;
}
@ -533,10 +531,9 @@ bool Cartridge::isProbablyUA(const uInt8* image, uInt32 size)
{ 0xBD, 0x1F, 0x02 } // LDA $21F,X
};
for(uInt32 i = 0; i < 3; ++i)
{
if(searchForBytes(image, size, signature[i], 3, 1))
return true;
}
return false;
}
@ -569,14 +566,23 @@ bool Cartridge::isProbably0840(const uInt8* image, uInt32 size)
{
// 0840 cart bankswitching is triggered by accessing addresses 0x0800
// or 0x0840
uInt8 signature[2][3] = {
uInt8 signature1[2][3] = {
{ 0xAD, 0x00, 0x08 }, // LDA $0800
{ 0xAD, 0x40, 0x08 } // LDA $0840
};
if(searchForBytes(image, size, signature[0], 3, 1))
return true;
else
return searchForBytes(image, size, signature[1], 3, 1);
for(uInt32 i = 0; i < 2; ++i)
if(searchForBytes(image, size, signature1[i], 3, 1))
return true;
uInt8 signature2[2][4] = {
{ 0x0C, 0x00, 0x08, 0x4C }, // NOP $0800; JMP ...
{ 0x0C, 0xFF, 0x0F, 0x4C } // NOP $0FFF; JMP ...
};
for(uInt32 i = 0; i < 2; ++i)
if(searchForBytes(image, size, signature2[i], 4, 1))
return true;
return false;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -607,10 +613,9 @@ bool Cartridge::isProbablyFE(const uInt8* image, uInt32 size)
{ 0x20, 0x00, 0xF0, 0x84, 0xD6 } // JSR $F000; STY $D6
};
for(uInt32 i = 0; i < 4; ++i)
{
if(searchForBytes(image, size, signature[i], 5, 1))
return true;
}
return false;
}
@ -624,10 +629,9 @@ bool Cartridge::isProbablyX07(const uInt8* image, uInt32 size)
{ 0xAD, 0x2D, 0x08 } // LDA $082D
};
for(uInt32 i = 0; i < 3; ++i)
{
if(searchForBytes(image, size, signature[i], 3, 1))
return true;
}
return false;
}