[Coco] FHL Color Flex

[Luis Fernández]

I use
CoCoDisk & driver  http://simonowen.com
but ......


> From: SFischer1 at Mindspring.com
> To: coco at maltedmedia.com
> Date: Sun, 7 Apr 2013 10:20:28 -0700
> Subject: Re: [Coco] FHL Color Flex
> 
> Hi,
> 
> We need to find the program that copies real floppies to .dsk, and the 
> reverse if that was written.
> 
> Failing that, we must write code after doing some disassembly.
> 
> > Track 0 does not have a sector 1. All of the other tracks don't have a 
> > sector 0.
> 
> That's messy!
> 
> SHF
> 
> ----- Original Message ----- 
> From: "Frank Swygert" <farna at att.net>
> To: <coco at maltedmedia.com>
> Sent: Sunday, April 07, 2013 8:17 AM
> Subject: Re: [Coco] FHL Color Flex
> 
> 
> > So track 0 is different, believed to be single density.  That can cause 
> > problems for creating an emulator DSK image file. So WHY is track 0 SD, 
> > and what part of the code reads/uses it? The solution may be to solve that 
> > riddle and modify the code so that it no longer needs the SD track. I 
> > suspect it's a boot program of some kind. FLEX (like OS-9) was likely 
> > developed on an old system that used SD disks as standard, then when DD 
> > disks became the norm everything was changed except the boot track. That 
> > would allow an old system to start then give an on-screen error as to why 
> > it stopped, and a newer system (since the controller of the day could read 
> > SD and DD) would boot as well. The boot loader that diverts to drive 0 
> > track 16 sector 9 may have code pointing back to the SD track. Of course 
> > the SD track may be blank formatted and the check for track 0 as SD may 
> > just be a simple form of copy protection. Come to think of it, that's the 
> > more likely case since it's hard to format one track SD and the rest DD.
> >
> 
> 
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