Pro-Dos uses the same floppy-disk format as Amstrad's PCW 8256 - and it will read original PCW disks. Of course, they need to be 3.5" disks rather than Amstrad's 3" format. ;-)
Steve is correct in saying that Pro-Dos simply soaks up all available SAM RAM for its RAM-disk. If I remember, the internal RAM-disk is also in PCW format, rather than some proprietary technique. This allowed the program core to use its main floppy-disk code to also access the RAM-disk, with only trivial alterations... *Probably!!!! :-) Chris. * it's been over 15-years since I looked at the Pro-Dos source-code - which I no longer have. ----- Original Message ----- From: "Steve Parry-Thomas" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Saturday, June 02, 2007 5:39 PM Subject: RE: Wish List - Software > The Pro-dos RAM code just soaks up any spare RAM and sets it up as a > RAMdisk, - Drive C on a two disk Sam. > > No MasterDos or MasterBasic is used , in fact they were not about when Chris > was writing Pro-Dos. > > CP/M disks have a different format than SamDos / MasterDos. I'm hoping > Chris will read this.? > > @ Calvin you never talk cr*p - this is where ideas come from and you just > might give someone else the idea and try something new! :-) > > Steve(spt) > > > > > > steve [AT] parry-thomas.co.uk > > > > > > _____ > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Calvin Allett > Sent: 02 June 2007 16:09 > To: [email protected] > Subject: Re: Wish List - Software > > > > That`s a pity, I thought at least something extra > would be able with RAM Disk :( > > I knew I was talking crap again :) > > Colin Piggot <[EMAIL PROTECTED]> wrote: > > Steve is the Prodos expert, and of course Chris who wrote it, but from what > I can see Prodos uses it's own Ram disk system (i.e. not via MasterDOS) and > also the discs are in cp/m format. > > Colin. > ====== > Quazar : Hardware, Software, Spares and Repairs for the Sam Coupe > 1995-2007 - Celebrating 12 Years of developing for the Sam Coupe > Website: http://www.samcoupe.com/ > > ----- Original Message ----- > From: "Calvin Allett" > To: > Sent: Saturday, June 02, 2007 3:49 PM > Subject: Re: Wish List - Software > > > I had a few brief dabbles when you first started up your archive, got a few > simple games running, wouldn`t mind having a good look at it properly, if > you can run the software that Id`ve used on PCW`s at school. > > Good luck getting something sorted regarding Atom support :) For now, would > it be possible/helpful to knock up in MasterBasic a front end and file > requester, to allow you to select certain files, or images and put them in > RAM Drive. This might help going through them, browsing? Are Prodos disks on > normal SAMDos format? or in a CP/M format, as you could even build up > virtual disks (from many) then bang em in the RAM, before launching Prodos, > which could be beneficial? Let me know if I`m talking bollocks again :) > > > > > > > > > > _____ > > Copy addresses and emails from any email account to Yahoo! Mail - quick, > easy and free. Do > <http://us.rd.yahoo.com/mail/uk/taglines/default/trueswitch/*http:/uk.docs.y > ahoo.com/trueswitch2.html> it now... > >
