Le 21-05-2017, Matthew Phillips nous expliquait dans
> In message <ofqi7n$jap$1...@golgoth99.redatomik.org
> on 21 May 2017 Doug713705 wrote:
>> Hi all,
>> I'm using different CPC emulators on a Linux host:
>> - arnold
>> - xcpc
>> - rwcpc (in a dosbox)
>> All of them a running perfectly using the PARADOS rom.
>> Now, i'm trying to run a demo that is stored on a .dsk file that is a
>> extended DSK format.
>> After inserting it, I can list the content of the disk with the cat
>> command but I can not run any programm on it because of lack of RAM.
> Could you tell us which model of CPC you are emulating? The RAM available
> does depend on the model (e.g. 464, 664, 6128).
Oh sorry, this is a 6128.
> And how much RAM have you available in the emulator? The Amstrad had various
> RAM expansion modules available, such as those by dk'tronics, and some of the
> emulators will emulate RAM expansion packs.
Now with cpcemu, I have 576KB RAM and this allowed me to run the demo.
>> My questions are:
>> - Is it possible to extend RAM with all or some of the emulator listed
>> above ?
> Your problem may not be anything to do with how much RAM is configured in the
> emulator. Most demos will have worked with the CPC 6128 without any
> additional RAM as having RAM expansion on that machine would have been rare.
> I think it is more likely that the problem results from the ROMs you have
> installed on the emulator. You could try using AMSDOS instead of PARADOS.
> Also make sure that you disable any other ROMs you might have (e.g. Protext,
> MAXAM) before running the demo.
> ROMs usually take a little bit of RAM work their workspace, and it could be
> that the demo is very tight in the main RAM. The Z80 can only address 64K of
> RAM natively, with additional RAM being paged in, usually in the &4000 to
> &7FFF address range. This makes the RAM in the range &8000 to &BFFF
> particularly valuable as that is where the firmware jump blocks are, and any
> working space needed by the disc ROM and other ROMs.
The problem was a RAM problem, solved by using cpcemu which allow memory
extension up to 576KB.
From the demo creator Parados is needed to run it.
> If you could tell us what the demo is, and where you got it (if the DSK file
> is available online) then other people can say whether they have trouble
> running it too.
The demo is not an old demo, in fact this demo is a new one made by a
friend for the Toulouse Hacker Space Factory, a hacking festival in
Toulouse, south of France.
The demo itself can be downloaded from here (WIP):
This demo may not be what you can expect as a demo :)
Thank you for your help.
Et j'attends que se dressent vos prochains charniers
J'ai raté l'autre guerre pour la photographie
J'espère que vos macchabées seront bien faisandés
-- H.F. Thiéfaine, Aligator 427