[comp.os.cpm] HEX codes for CP/M-86

SAC.HQSAC-DOCT@E.ISI.EDU (John A. Wright) (02/20/88)

Frank,

I  found  a  hex code for MDM840.  For your information only, the
HEX file is identical to what my"asm86" produces.

I think that  CP/M-86  hex  files need  a  different  format  than
CP/M-80 COM files.

I would sure be interested in finding out why?

Again,  thanks fo your invaluable help thus far.  If you can find
any books on CP/M-86, please provide me the titles/author.

esiid@ulysses.homer.nj.att.com (Eliot Siidmarc[shp]) (03/03/88)

In article <[E.ISI.EDU]19-Feb-88.20:15:48.SAC.HQSAC-DOCT> SAC.HQSAC-DOCT@E.ISI.EDU (John A. Wright) writes:
>I think that  CP/M-86  hex  files need  a  different  format  than
>CP/M-80 COM files.

>I would sure be interested in finding out why?

Just an off the cuff guess, but wouldn't there need to be
additional segmentation information?
Last time I hacked in 8086 Assembler (Has it been a year already?)
I seem to recall all of this stuff about groups, segments, and so on.

I'd check it out with Intel, but I'm sure there were some mods
to the HEX format for all of those goodies.

				Eliot Siidmarc   <backbone>!ulysses!esiid
				600 Mountain Ave. 30M-005 Murray Hill, NJ 07974
				(201)582-5836  "Strictly my own rants and raves"