Date: 2008-12-29 08:18:49
Hallo allemaal, Just un update on the whole project. The bad thing: I had to start almost all over again :( I made a BASIC PRG that did some things like , formatting the floppy, saving itself, creating several files and deleting them again. And that's where things went wrong. Deleting the files one by one was no problem but deleting them using an asterix, *, went wrong: the process ended with an error message although the rest of the proces went well. Testing this on previous versions I found out that the error occured already in version 3. To give you an overview of my versions: 1 - I replaced the routines accessing the floppy with routines accessing the IDE harddisk 2 - Removed all unneeded routines, like the formatting routine, and created one big block free space at the end of the ROM. 3 - Removed references to the second drive, mainly to free RAM for my own use 4 - Added support for working with images 5 - Added support for working with subdirectories 6 - 16 MB: 254 tracks with 256 sectors each 7 - 32 bits version. This one needs the most amount of RAM. 8 - As version 6 but using partitions as subdirectories. Already having decided to give up the 32 bits configuration in favour of version 8, there wasn't this need for extra RAM anymore. FYI, not having to deal with GCR anymore, I already freed up the complete area from $0145 to $01FF. I already enlarged the Stack area up to $0180 wich still give me 128 extra bytes of RAM ($0180-$01FF). So now I am working on version 9 (in reality V0.9) which is version 2 with the goodies of version 4, 5 and 8. This goes a bit slower then I thought. In the mean time I also found out that I have been a bit to keen on replacing 1541 disk access routines by my own IDE ones: my routines didn't free up reserved buffers. So I decided to implement things in such a way that only original 1541 routines are used. Once things work fine, I still can replace the original routines IRQ orientated routines by direct access ones. -- ___ / __|__ / / |_/ Groetjes, Ruud \ \__|_\ \___| URL: Ruud.C64.org De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen. APG Algemene Pensioen Groep NV is gevestigd te Heerlen en is ingeschreven in het handelsregister van de Kamer van Koophandel Limburg onder nummer 14099617 The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose it's contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission. APG Algemene Pensioen Groep NV is registered in the trade register of the Chamber of Commerce Limburg, The Netherlands, registration number: 14099617 Message was sent through the cbm-hackers mailing list
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