This message is a reply to fastrom and slowrom posted from tibabo posted at December 31, 2001 at 11:16:08
> finaly i think that i found why seiken dendetsu 3 did want to work on my homemade cardrige
> i use 150 ns eprom
> is there a way to make it work with my 150ns eprom?
> i played to breath of fire 2 that is a fastrom but it got an intro with
> slowrom fix on /off
> another thing is that when i wanted to create a new game i entered a name ,i go back to the main menu and nothing hapen perhaps it is because i don't put a mad1+sram or anything else> if someonean help me...
Based on Neviksti's analysis it looks like you'll need 120ns minus decode time so you're probably looking at 100ns parts. You can try replacing the EPROMs.
If you're desparate to test whether it will work you might try disassembling the SD3 code and finding the spot where it switches to fastrom and NOP that instruction out (hopefully it only switches once). It usually happens very near the beginning of the startup sequence.
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