Posted By
Harry Potter
on 2022-06-28
13:46:40
|  32k cartridge: proper IRQ addresses?
I believe I know what's wrong with my 32k Plus4 cartridge configuration for cc65: I'm not handling interrupts properly. What values should I put in the memory area $FFFA-$FFFF?
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Posted By
siz
on 2022-07-01
07:40:10
| Re: 32k cartridge: proper IRQ addresses?
The 7501/8501 processors don't have NMI pins so $fffa/$fffb is not a vector. The other vectors don't matter as the 264 series computers always map in the KERNAL ROM when accessing the $fc00-$ffff area and ROM is enabled.
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So, what's wrong with my Plus4Cart3 library? It is at 
