I've been working on some more Famicom carts and I came across this one, HVC-UN1ROM-01.
At first I just figured it was going to work just like UNROM but with maybe a 64KB ROM instead of 128K, but that is not the case. D0 and D1 are not used for some reason, instead D2-D4 are used.
Turns out this behavior was implemented as INES mapper 94, I never found any references to the actual board name though.
At first I just figured it was going to work just like UNROM but with maybe a 64KB ROM instead of 128K, but that is not the case. D0 and D1 are not used for some reason, instead D2-D4 are used.
Turns out this behavior was implemented as INES mapper 94, I never found any references to the actual board name though.