Posted: Sun Sep 01, 2019 6:46 am
I found these requirements on a thread for a previous contest multicart. Are these still valid requirements?
My current project that I hope to have done in time uses CNROM with 32 KB of Prog ROM and at least 2 banks/16 KB (maybe more) of CHR ROM. Sound good?tepples wrote:
NROM-128: Be careful not to write to $8000-$FFFF. Test with a breakpoint on writes to ROM.
NROM, CNROM: Be careful not to overwrite CHR ROM. Test with a breakpoint on writes to PPU $0000-$1FFF.
NROM, CNROM, ANROM, BNROM: $FFD0-$FFF9 of each 32K PRG ROM bank must be unused.
UNROM (2): $FFD0-$FFF9 must be unused.
UNROM (180): $BFD0-$BFF9 must be unused.
A53: Write to register $81 only once, at the beginning of the program, and match the values written to $80 to the size of the entry: $00-$0F for 32K entries and $10-$1F for 64K entries. Specify whether $FFD0-$FFF9 or $BFD0-$BFF9 is unused.