I take it that because you mention HDOS that it is possible? Luke
-----Original Message----- From: Nev Young [mailto:[EMAIL PROTECTED] Sent: 25 July 2002 18:59 To: [email protected] Subject: Re: SimCoupé/Win32 beta 4 On Thu, 25 Jul 2002 16:54:30 +0100, Luke Trevorrow <[EMAIL PROTECTED]> wrote: > I too have had good fun using the Atom HD emulation, but agree that the > system is limited to emulating the running environment (which admittedly is > what SIM Coupe is for). > > Why does BDOS work on a floppy by floppy basis? Is it some limitation with > the SAM Coupe that stops you from having one big disk like on a PC? > Yes, the disk directory structure is fixed to expect 80 tracks of 10 sectors or 510 bytes. There is a 195 byte (1560bit) area in each file header which holds a bit map of the sectors used by that file. To avoid the need to create a new more complex directory structure (like what HDOS did) BDOS just maps the hard disk as many floppies. hth Nev - who has almost finished scanning the tech manual. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************
