[sebhc] Boot ROM modifications

[West, Ronald S.]

Barry,

Good observation, you are correct. I see Lee has sent a note with a product
that does this for cp/m. Will check the SEBHC site and see if anything like
that for HDOS has been posted.

Ron


> -----Original Message-----
> From: sebhc-bounces at sebhc.org 
> [mailto:sebhc-bounces at sebhc.org] On Behalf Of Barry Watzman
> Sent: Wednesday, August 10, 2005 12:12 PM
> To: sebhc at sebhc.org
> Subject: RE: [sebhc] Boot ROM modifications
> 
> 
> I don't think that your problem is a function of the boot rom.
> 
> My recollection is that the boot rom only reads in track zero 
> and then transfers control to the code contained therein.  
> All subsequent activity is a function of whatever code was on 
> track zero, not of the boot rom.  Track zero, of course, can 
> be read identically on either a 40 track or an 80 track 
> drive.  Thus, your issue lies in the boot code on the floppy, 
> not in the boot code in the ROM.
> 
> [I think]
> 
> 
> -----Original Message-----
> From: sebhc-bounces at sebhc.org 
> [mailto:sebhc-bounces at sebhc.org] On Behalf Of > West, Ronald S.
> 
> Sent: Wednesday, August 10, 2005 11:59 AM
> To: 'sebhc at sebhc.org'
> Subject: [sebhc] Boot ROM modifications
> 
> Wonder if anyone knows if there was a boot ROM mod to allow 
> the use of a 80 track drive for booting an H17 disk? I 
> managed to get a TEAC FD-55GFR 193-U drive to read a hard 
> sector boot floppy and display the "(BOOT)" prompt on my 
> H-8/H-19. It won't go any further in the boot process as it 
> only steps 1 track instead of 2 needed for the 80 track drive. 
> 
> If someone is interested in how this was done let me know and 
> I will send in the details.
> 
> Ron
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