Author Topic: Cart query  (Read 510 times)

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Offline ComSoft6128

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Cart query
« on: 09:25, 30 April 21 »
Hi,


I have a dual OS cart from @tjohnson - it contains Amsdos and Parados.
To move between them there is a selector switch which I normally use after switching off the Plus.
It would be far more convenient if I could switch between Amsdos and Parados when the Plus is still powered on.
I haven't tried this yet and would like to know if this is a REALLY BAD idea ::)


Cheers,


Peter
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Offline geebus

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Re: Cart query
« Reply #1 on: 09:59, 30 April 21 »
Someone will most likely correct me if i'm wrong, but I think it would be a bad idea.
Main thing being that the roms will be initilised on boot and from what I understand (most likely wrong) the addresses of items in the ROM are stored so that the computer knows where to access.
If you switch the ROM whilst it's still on, those locations wont match.
Might also be an issue with shorting things as everything is live.
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Offline Bryce

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Re: Cart query
« Reply #2 on: 10:13, 30 April 21 »
It probably wouldn't damage the CPC, but it definitely wouldn't work either. As geebus said, there is already one system running on the computer and that would just crash. It would be the same as swapping the harddrives on a PC from Windows to Linux while it's running and expecting the system to just magically swap OS.

Bryce.
« Last Edit: 10:21, 30 April 21 by Bryce »
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Offline ComSoft6128

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Re: Cart query
« Reply #3 on: 10:20, 30 April 21 »
Thanks!
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Offline GUNHED

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Re: Cart query
« Reply #4 on: 21:29, 02 May 21 »
Give it a try, probably just the DOS ROM 7 is switched. So as long as you don't switch while using a drive it should be perfectly fine.
I got similar switches at one of my CPCs, no problem. :-)


Since ParaDOS is compatible to AMSDOS it probably doesn't even need a reset. However, just to be on the save side press Control+Shift+ESC one after every switch. :)
« Last Edit: 21:30, 02 May 21 by GUNHED »
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