5 Nov
1998
5 Nov
'98
3:22 p.m.
On Thu, 5 Nov 1998, Jason Willgruber wrote:
Instead of using the G= routine, first locate the card BIOS using the D
function. You will almost invariably find ASCII text that will identify
code found as the card's. Check C800:0, CA00:0, and so on in 200:0 steps
on through Dn00:0. When you find some likely code use the L function to
see if there is a JMP around xx00:5. If so, then try the G= bit. Saves
a lot of rebooting! Remember, not all HDC BIOSes have such a jump start.
- don
Generally you
type int he sequence where you run what's in memory at the
beginning of the ROM address, usually C800 as the primary controller. At
the
Debug prompt you type G=C800:5 or it may be
G=CC00:5 or G=D000:5 as well
as
another I forget. It also is dependant upon the
controller itself but
they
usually followed some standards.
I'll need to try the other addersses. I'm basically assuming that
<G=C800:5> is an incorrect address, since it causes the computer to reboot. Once the
program starts you have to figure out what they're asking for as
this
is where they get different. Western Digital
controllers were pretty
striaghtforward.
That they were. I've worked with them in my Tandy 1000's.
-Jason
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