[net.micro] CPM/BIOS interface questions

kbb@faron.UUCP (Kenneth B. Bass) (03/31/86)

I need some information about what CP/M (2.2) expects
from the BIOS. Specifically:

	What are the various entries in the disk parameter
	header blocks? (and what does CP/M do with them)

	What kind of error codes does CP/M want for things
	such as 'write-protect', or 'record-not-found', etc.?

Please respond via email to me, since I don't get too many chances
to read this group.

			ken bass
			kbb@faron.ARPA

kbb@faron.UUCP (Kenneth B. Bass) (04/12/86)

Thanks to all who responeded to my query about 
CPM's DPH blocks and BDOS handling of BIOS errors.

The overwhelming majority of those who replied recommeded
Andy Johnson-Laird's book "CPM Programmer's Handbook", so
I thought I'd pass that bit of information to any of you out
there who might be interested.


			ken bass
			kbb@faron!mbunix.ARPA
			linus!faron!kbb


(I was hoping that some nice soul would send me directly the
info. Oh well, I guess I'll have to loiter around in the local
bookstore...)