neil@cs.hw.ac.uk (Neil Forsyth) (09/21/88)
I was poking around in Neochrome the other day (is that illegal?) and found some more negative Line A offsets. Screen width -$2B4 # Note: The mouse pointer is clipped by these Screen height -$2B2 Colours -$29A Mouse X -$258 # These change even when mouse cursor is disabled Mouse Y -$25A Since they are in Neochrome and work with both ROM 1.00 and 1.02 then I assume they are officially supported. Thanks to his involvement with the BIOS Dave Staugas seems to be in a rather privileged position to know all this sort of stuff. Would Atari care to comment on these locations? Now a different topic. I have a Xebec S1410A SASI controller board connected to a Hitachi DK511 40MB disk drive. When I do a system reset the heads take quite a time (and small steps) to get back to the boot partition C. If I have accessed partion E or F the ST times out and I have to press reset again. There is no problem going from F to C during normal usage only at reset and I know from experimentation that the problem does not involve the ST hardware or host card. Is this just a quirk of the Xebec that I have to live with or does someone know of a solution? _____________________________________________________________________________ / DISCLAIMER: Unless otherwise stated, the above comments are entirely my own \ ! ! ! "I think all right thinking people in this country are sick and tired of ! ! being told that ordinary decent people are fed up in this country with ! ! being sick and tired. I'm certainly not and I'm sick and tired of being ! ! told that I am!" - Monty Python ! ! ! ! Neil Forsyth JANET: neil@uk.ac.hw.cs ! ! Dept. of Computer Science ARPA: neil@cs.hw.ac.uk ! ! Heriot-Watt University UUCP: ..!ukc!cs.hw.ac.uk!neil ! ! Edinburgh ! ! Scotland ! \_____________________________________________________________________________/
apratt@atari.UUCP (Allan Pratt) (09/24/88)
In article <1971@brahma.cs.hw.ac.uk> neil@cs.hw.ac.uk (Neil Forsyth) writes: > > > > I was poking around in Neochrome the other day (is that illegal?) and found > some more negative Line A offsets. > > Screen width -$2B4 # Note: The mouse pointer is clipped by these > > Screen height -$2B2 > > Colours -$29A > > Mouse X -$258 # These change even when mouse cursor is disabled > > Mouse Y -$25A > > Since they are in Neochrome and work with both ROM 1.00 and 1.02 then I assume > they are officially supported. Thanks to his involvement with the BIOS Dave > Staugas seems to be in a rather privileged position to know all this sort of > stuff. Would Atari care to comment on these locations? Don't be snide. Atari *has* commented on these locations. They are documented in S.A.L.A.D., the new Line-A document (by Jim Eisenstein and Mark Jansen). If you are a developer and would like a copy, call or write Cindy Claveran, of Developer Support. I believe the document is also in the developer-only areas of some online services, like CompuServe and GEnie. (If it isn't, I'm sorry -- I'm not sure.) ============================================ Opinions expressed above do not necessarily -- Allan Pratt, Atari Corp. reflect those of Atari Corp. or anyone else. ...ames!atari!apratt