Hello, all:
The Altair32 project is progressing nicely. I've completed the coding, so
it's feature complete *except* for the Telnet server code. The emulator now
can load and save files, accept disk images (the "controller" is the
standard MITS 88DSK), and produce printer output. I also modularized it a
bit so that it's easier to add devices to it in the future.
Obviously, the Telnet server code is key since that's what will serve as
the attached terminal. So, we are unfortunately still restricted to using
the FP.
I have a few bells and whistles I like to add. For example, I'd like to add
real Altair fan noise. Spin up. Run. Shutdown. I'd also like to change the
FP to the original 8800 instead of the 8800b that was originally used. What
I'd want to do is superimpose the graphic switches and LEDs over a picture
of an actual 8800. The existing graphics size is 600x320, but I can make it
larger if need be.
I haven't posted the code to my Web site yet because I'd like to first
offer it up for "beta testing" to the ClassCmp group. If anyone is
interested in seeing the full source distribution including bitmaps and VC6
project files, please email me off-list and I'll send you a zip file.
Just a personal reflection. Before this project, I never programmed in C,
much less in "Windows." What a learning experience. I do have to say,
though, that C is fairly easy to learn and use, but I'm sure that I'm only
using about 20% of what C offers. And even at the end of the project, I
still have trouble with pointers :-).
Rich
ClubWin! Group 1
Collector of Classic Computers
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/*****************************************/
On January 21, Claude.W wrote:
> They arent anything obvious, thats the deal...
>
> AMI 8147BXW (date code...8147...?)
> CO12406-01 (your guess...)
> (c) 1980 Atari
> Korea
Hmm...nonsensical numbers... :-(
Hey, you could look at the board and see how many address lines are
wired up...
-Dave McGuire
Can anybody please tell me or point me to a diagram explaining which
connectors on the back of this disk are for what?
In addition, an explanation of how to interpret the diagnostic LEDs on the
top panel would be most helpful.
Tony, thanks for your information. It was a good start for me, but I
need some drive-specific information now. Seagate's web pages are worse
than useless for this.
ok
r.
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
>> I am suspecting a 2716 or 2732 too but...
>> ...
>
>I'd be suprised if you could fit a reasonable BASIC interpretter into 2K
>or even 4K of 6502 code....
Bizzare statement from you. The 6502 was fairly code efficient and there
were
basics that easily fit in both 2k (integer) and 4k (with floats).
>There is/was an 8K*8 mask-programmed ROM in a 24 pin DIL package (one of
>the versions of the 2364 IIRC), and I wonder if that's what you have. I
>can find pinouts of that ROM in the Rockwell databook if you need them.
Yes there was Mask roms were available in both larger and less costly
for before the Eprom versions.
Allison
On Jan 21, 20:14, Alex Holden wrote:
> Hi, does anyone know where I can get hold of Sun monitor cables (ideally
> in the UK)?
[...]
> They use 13W3 D type connectors, and I
> did actually manage to get hold of the connector shells from Farnell, but
> they don't seem to be able to get hold of the signal pins for them.
Farnell do list the coax inserts (they also stock the high-current power
plugs that can be used in other 13W3 appications), and IIRC they list the
13W3 shells in two places in the catalogue (which I don't have handy).
They might be out of stock, I suppose. If so, you can also get them from
Electrospeed (www.electrospeed.com):
169.23.1415.421 50 ohm straight plug 252-38733D ?4.08
23.2415.421 50 ohm straight socket 252-38734A ?6.17
FMX 003 P102 75 ohm straight socket 252-3104J ?3.05
FMX 003 S102 75 ohm straight plug 252-3106A ?2.36
(I'd check those part numbers; S102 sounds like it should be a socket and
P102 sounds like it should be a plug!)
Electrospeed also sell Siemens inserts for DIN 41612 mixed-body connectors,
which AFAIK are interchangable -- but the Siemens ones are (even) more
expensive.
You can also get them from RS (rswww.com) or Electromail:
485-164 RG178B/U straight plug ?4.16
485-170 RG174A/U straight plug ?4.57
485-186 RG178B/U straight socket ?4.84
485-192 RG174A/U straight socket ?3.89
You can get the cheap version from CPC (www.cpc.co.uk):
CN04661 RG179B/U 75 ohm plug ?1.43
CN04662 RG178B/U 50 ohm plug ?1.43
CN04663 RG179B/U 75 ohm socket ?1.52
CN04664 RG178B/U 50 ohm socket ?1.52
You can get Sun-to-VGA adaptors (both genders), half-pitch 50 D plug
(SCSI-2) to 50-pin 3-row D (which is probably what you called "weird
oversized-D"), and 50-pin D to 50-pin D from Videk (www.videk.co.uk).
--
Pete Peter Turnbull
Network Manager
Dept. of Computer Science
University of York
Well, this is more a brag than something constructive, but I wrote my first
automatic Commodore 1541 disk drive re-aligner out of desperation this
weekend. I couldn't get it to read any disks and since this drive was the
internal 5.25" in the 128DCR, I couldn't just replace it. So I wrote a program
that commanded the FDC to whack the head into the restraining rail until it
could read the disk again. Voila. ;-)
The things you do when you're desperate ...
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu
-- Violence is the last refuge of the incompetent. -- Salvor Hardin -----------
From: Jeff Hellige <jhellige(a)earthlink.net>
> Where can PC/GEOS, aka New Deal, be found? It sounds pretty
>interesting and something I'd like to check out.
>
> Jeff
Uh try www.newdeal.com I posted it earlier in the string.
Allison
Hi
Anybody ever burn your own EPROM from a rom dump and just put it in a socket of a cartridge?
I opened up a cart today to see a socketed ROM in there in only one of the 2 possible PCB locations for chips.
I suspect 2 were used in some cartridges...not in the breakout game I opened today.
Anybody know what eprom types are pin compatible for these if any?
Claude
From: Cameron Kaiser <spectre(a)stockholm.ptloma.edu>
>> FYI: it's only 2mb! Even the dos 6.22kit is larger and
>> www.newdealinc.com
>
>That's PC/GEOS. Trust me, it works. I was a PC/GEOS believer back in the
>early days and I think it's one fabulous GUI.
Dont have to trust you, I've got it and it does work very well.
Allison
Derek Peschel and I are sitting here scratching our heads making confused
noises trying to figure out why my Symbolics is broken.
It worked (to a point) before I moved to this new house. Now it's not
working even tot hat point.
Power good. We can't get the FEP booted.
I wonder if I haven't gotten the SMD disk hooked up correctly?
At the drive end, there ar four possibilities for where to connect the
60-pin A cable, and two possibilities for where to connect the B cable. I
have a terminator. We have wasted lots of time searching the web for this
informaiton.
How do I hook up the drive so I know it's connected properly? It's a 760
MB CDC Sabre 9720.
Help!
ok
r.
ps. Does anybody know enough about these machines to help me troubleshoot
it? I think the basic parts all work, but just not yet together. It's a
Symbolics 3650.
