27 May
1999
27 May
'99
9:25 a.m.
allisonp(a)world.std.com wrote:
Hi
It does on my system unless I toggle in a loader or have
EPROMs to do it. I'd like to not have any EPROMs if I don't
need it. The controller automatically loads track 0 sector 1.
I start executing at address zero and it boot loads the
CPM system. The boot loader then jumps to the start of
the CPM and it over writes info at address zero with what
it requires there. As far as I know, I am following the examples
for a non-MDS800 type system and following exactly what is
shown on 6-14/6-15 of the CPM manual that I got from the
unofficial site. The mapping shows that the first sector
is a cold start loader and the CPM ( CCP ) part doesn't start until
the second sector.
It would seem that there was additional BOIS info loaded that
didn't fit into the 51 sectors. It sounds like I can ignore
this because I'll be replacing it anyway.
Let me say, no EPROM's, boots from disk.
Dwight
I guess the
issue is that the additional space is the BIOS and
since I'll be replacing this with my own BIOS, and I write efficient
code, I don't have to worry about it until I run out of space?
Dwight
???HUH??? Figure this if your running a SSSD 8" to be compatable with
media out there the system has two tracks to use for the CCP, BDOS and
bios. Thats 52 sectors!
The first sector DOES NOT HAVE TO BE THE BOOT.