geoff@burl.UUCP (geoff) (06/09/86)
There is probably a trivial answer I should already know, but I don't. I know I can read SIGBYTE (at some addr or another, I have it at home) to find out if I am on an Apple IIe, but how do I tell if the computer I am running on has the 80 column card installed? I think if I start hitting soft switches if I don't have the card disaster will result. Thanks for your help. -- geoff sherwood ...![ ihnp4 ulysses cbosgd mgnetp ]!burl!geoff ...![ ihnp4 cbosgd akgua masscomp ]!clyde!geoff "If your words can't stand on their own, adding volume won't help"
steve@jplgodo.UUCP (Steve Schlaifer x43171 156/224) (06/12/86)
In article <1303@burl.UUCP>, geoff@burl.UUCP (geoff) writes: > [summary: how can I tell if there is an 80 column card installed on a //e ] There is an ID byte near the start of each slot's ROM space that tells generally what kind of card is installed there. The Technical Reference Manual for the //e describes the signature bytes and what they mean. If you don't have the manual or can't find the information, let me know and I will look in mine (its at home right now). Note: not all manufacturers of add-on cards do this right but most seem to. -- ...smeagol\ Steve Schlaifer ......wlbr->!jplgodo!steve Advance Projects Group, Jet Propulsion Labs ....group3/ 4800 Oak Grove Drive, M/S 156/204 Pasadena, California, 91109 +1 818 354 3171
jb@rti-sel.UUCP (Jeff Bartlett) (06/16/86)
> .... how do I tell if the computer > I am running on has the 80 column card installed? > > geoff sherwood > ...![ ihnp4 ulysses cbosgd mgnetp ]!burl!geoff > ...![ ihnp4 cbosgd akgua masscomp ]!clyde!geoff > The C300 firmware contains a routine called 'testcard' which will tell. I don't have my Apple IIe firmware suppliment in hand, but I seem to remember that it pokes an '*' into 80 column card and tries to read it back. Jeff Bartlett Research Triangle Institute mcnc!rtisel!jb All the world is a digital stage, and we only play 'bit' parts.