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General Category => Technical Support - Software related => Topic started by: eto on 09:14, 24 October 22

Title: Load SNA from ROM to RAM on real hardware
Post by: eto on 09:14, 24 October 22
Is it possible to load a SNA from ROM(Cartridge) without additional hardware? 

I know that it's possible e.g. with Dandanator or M4 but I was wondering if it would be possible to create Multi-game-Cartridges for a GX4000 where I don't have an expansion port. 
Title: Re: Load SNA from ROM to RAM on real hardware
Post by: roudoudou on 10:09, 24 October 22
you can even do that from floppy :)
Title: Re: Load SNA from ROM to RAM on real hardware
Post by: eto on 11:03, 24 October 22
Quote from: roudoudou on 10:09, 24 October 22you can even do that from floppy :)
So far I have only found stuff that needs some kind of hardware. Can you point me to a piece of software that is doing this?
Title: Re: Load SNA from ROM to RAM on real hardware
Post by: roudoudou on 11:22, 24 October 22
i've done this before, "handcrafted"
all you need is a little free zone and a good cruncher
but i do not have (yet?) a generic program to manage this
i cannot promise for this week ;D
Title: Re: Load SNA from ROM to RAM on real hardware
Post by: Prodatron on 15:39, 24 October 22
Quote from: eto on 11:03, 24 October 22So far I have only found stuff that needs some kind of hardware. Can you point me to a piece of software that is doing this?
At least SymSnap only requires a ram expansion, nothing else:

http://www.symbos.org/appinfo.htm?00012

So you could load 64K and 128K SNA files from floppy disc.
But I am not sure if this would help you in your case.
Title: Re: Load SNA from ROM to RAM on real hardware
Post by: eto on 17:59, 24 October 22
Quote from: Prodatron on 15:39, 24 October 22
Quote from: eto on 11:03, 24 October 22So far I have only found stuff that needs some kind of hardware. Can you point me to a piece of software that is doing this?
At least SymSnap only requires a ram expansion, nothing else:

http://www.symbos.org/appinfo.htm?00012

So you could load 64K and 128K SNA files from floppy disc.
But I am not sure if this would help you in your case.

If there is also some source code available, that could help. I'm thinking about a ROM-to-RAM loader for a GX4000. Probably similar to what a Dandanator does. Of course that won't work for real cartridge games but all the converted games I guess could work. And having collections of 10-12 games on a cartridge would be really nice. 
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