TSROM game with eproms works but has garbled graphics

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TSROM game with eproms works but has garbled graphics
by on (#45704)
Hey,

So I built a mapper 4 game and tried it on a TLROM and a TSROM board. The game boots up and works but has garbled up graphics on both boards. I first tried the TLROM board and when I saw the garbled grpahics I just thought it might be cause it needed ram so I switched to the TSROM board but I'm still getting the same results. Any ideas?

Cheers!

by on (#45716)
Tell us what game it is.

by on (#45720)
Street Fighter 12 peoples. I was able to figure it out on my own, I had A16 of the CHR floating as I had the pin up instead of attached to the pcb.