cem@UCB-VAX.ARPA (10/27/84)
[ Sorry if you are seeing this for the second time, the Usenet/ARPA
gateway is down and the original article is trapped on a system somewhere ]
Hello world, I have a very specific query for a few select individuals.
I am finishing up my BIOS and was optimizing the Warm Boot code, when I
remembered I was reading in the entire CCP and BDOS when I warm booted.
This was because Andy Johnson-Laird says in his book on Bios programming
that some programs will overwrite the BDOS too. Unfortunately, to
accomplish this feat of reading in the BDOS I also reinitialize the BIOS
jump table (the CCP and BDOS don't fit into an even number of 1024 Byte
sectors, after you subtract the 25 128 byte sectors on the first track.)
I know that the BYE program really dislikes having the BIOS table, and
specifically the warm boot vector overwritten, and since I could save
much code by only reading in the CCP the Question I pose is as follows :
Do you know of 1 or more useful programs that expect the warm boot to
reload the BDOS as well as the CCP?
Thanks in advance, a reply of "Yes, FOO.COM" is sufficent but more
elaboration is encouraged.
P.S. I can't use the BIOS read routine n times since track 0 is single
density and track 1 is double density.
--Chuck
"amd!intelca!cem"@Berkeley