SFROM compatibility

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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abstract3000
Posts: 5
Joined: Wed Aug 13, 2014 2:48 pm

SFROM compatibility

Post by abstract3000 »

Hello there,
Had a question about a game that uses an SFROM board, 128PRG, 32CHR Mask Roms

I like the INL Flash boards and yet he doesn't have this type listed I was looking for something compatible and just need a little clarification, If I were to use SLROM w/ 128PRG & 128CHR would this work as the 128 is obviously larger than the 32? Or anyway to pad it?

Thanks for your help!
tepples
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Re: SFROM compatibility

Post by tepples »

If you duplicate the CHR ROM data to full the chip, you can use the SLROM board.
abstract3000
Posts: 5
Joined: Wed Aug 13, 2014 2:48 pm

Re: SFROM compatibility

Post by abstract3000 »

So Something like this dos command?
C:\Roms>copy /b NESrom.chr + NESrom.chr + NESrom.chr + NESrom.chr NESromFinal.chr

That I guess was my idea of padding it.

I appreciate the response!

Thanks
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mikejmoffitt
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Joined: Sun May 27, 2012 8:43 pm

Re: SFROM compatibility

Post by mikejmoffitt »

That will do just fine. In general, this sort of thing has you starting at the last filled power-of-2 boundary, and concatenating a duplicate, then moving on and doing the same until you've filled the target space.
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