15 Dec
2000
15 Dec
'00
4:28 a.m.
I was thinking about the possibility of building a miniature C-64... you
could probably squeeze the whole thing into an FPGA, but the VIC II and SID
chips might be a problem. It'd probably be easier to use an off the shelf
embedded controler and adapt the VICE emulator. A 2 or 3 inch color LCD
would make a nice monitor, but fabricating the miniature keyboard could be
difficult. You could always use a cheap membrane-style keyboard, I guess.
How about a 1541 disk drive that takes smartmedia cards?
Speaking of VICE, in a fit of boredom I set up an AlphaStation with VNC to
launch remote C-64 emulation sessions, sort of a C-64 ASP. You just fire up
your VNC client, point it at the server, and you get an emulated C-64 with a
bunch of old game disks. I haven't had it running since I moved over the
summer, but if anyone's interested I can fire it up and publish the address.
Scott
-----Original Message-----
From: Megan [mailto:mbg@world.std.com]
Sent: Thursday, December 14, 2000 3:52 PM
To: classiccmp(a)classiccmp.org
Subject: RE: storage media
"IBM used to send out its salesmen with little
1/24
models of their Mainframe installations to do site
planning on the desktop first before bringing in the
actual HW. With Moore's Law and the progress of
miniaturization, you could Build a system that big
now that actually works."
Only with more power.
Imagine putting together a little model of, say, the
PDP-10 system on the back cover of one of the PDP-10
reference manuals, but build an imbedded x86 machine
into the model, with one serial line... run linux on
the the embedded machine and Timothy Stark's pdp-10
emulator running TOPS-10...
:-)
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
15 Dec
15 Dec
6:53 a.m.
I was thinking about the possibility of building a
miniature C-64... you
could probably squeeze the whole thing into an FPGA, but the VIC II and SID
chips might be a problem. It'd probably be easier to use an off the shelf
embedded controler and adapt the VICE emulator. A 2 or 3 inch color LCD
would make a nice monitor, but fabricating the miniature keyboard could be
difficult. You could always use a cheap membrane-style keyboard, I guess.
How about a 1541 disk drive that takes smartmedia cards?
VIC-II and SID are perpetually problematic, especially SID since it's part
analogue (and probably so is VIC, for that matter). The timings are well known
but the interactions between registers are sometimes unpredictable (but rest
assured out there is a game that depends on that particular interaction).
Emulator writers have torn their hair out for years thanks to Commodore's
loose hardware design philosophy.
You would need a very large and complex FPGA to fully emulate the range of
behaviours these remarkable (and bizarre) chips demonstrate.
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu
-- I'd give my right arm to be ambidextrous. ----------------------------------
21 Mar
21 Mar
6:34 p.m.
VIC-II and SID are perpetually problematic, especially
SID since it's part
analogue (and probably so is VIC, for that matter). The timings are well known
but the interactions between registers are sometimes unpredictable (but rest
assured out there is a game that depends on that particular interaction).
Emulator writers have torn their hair out for years thanks to Commodore's
loose hardware design philosophy.
You would need a very large and complex FPGA to fully emulate the range of
behaviours these remarkable (and bizarre) chips demonstrate.
Hmm, analogue. I hadn't thought of that. But I thought the chips had been
pretty well reverse-engineered by now.
Does anyone know of gate-level (or similar) diagrams for the chips? We now
have the gate-level diagrams for the Atari custom chips, thanks to Curt
Vendel, so this is the chance for you Commodore fans to prove your inherent
superiority! :)
-- Derek
22 Mar
22 Mar
1:03 a.m.
You would need
a very large and complex FPGA to fully emulate the range of
behaviours these remarkable (and bizarre) chips demonstrate.
Hmm, analogue. I hadn't thought of that. But I thought the chips had been
pretty well reverse-engineered by now.
Does anyone know of gate-level (or similar) diagrams for the chips? We now
have the gate-level diagrams for the Atari custom chips, thanks to Curt
Vendel, so this is the chance for you Commodore fans to prove your inherent
superiority! :)
8443
days inactive
8540
days old
3 comments
3 participants
participants (3)
-
dpeschel＠eskimo.com -
Scott.Miller＠vandenberg.af.mil -
spectre＠stockholm.ptloma.edu