Hi! There is a community project to make an 8-bit OPL2 sound board.
http://www.vintage-computer.com/vcforum/showthread.php?23271-8-BIT-OPL2-Soun
d-board
http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder
<http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=OPL2>
¶m=OPL2
The board is designed already and ready to go to prototype board build and
test.
The board supports the YM3812 and YM2151 synth chips and the YM3012 and
related DACs.
There are some interested builders working on the design at
vintage-computer.com forums.
To order prototype PCBs I need 5 builders to order prototype boards at $30
so we can get some initial hardware for build and test.
There will be software for this board to allow OPL2 programming. The board
*may* provide some compatibility for legacy PC gaming.
If you are interested in participating please contact me by email
LYNCHAJ at YAHOO.COM with OPL2 in the subject.
Thanks and have a nice day!
Andrew Lynch
Hi all --
Now that it's 2011, I just wanted to remind everyone about VCF East
7.0. It's scheduled for May 14-15 at our usual location -- the InfoAge
Science Center, in Wall, New Jersey.
Typically most of our exhibitors are from the Mid-Atlantic and Northeast
parts of the USA. However last year some exhibitors arrived from
farther away -- Mike Lee (Chicago), Vince Briel (Cleveland), and even
Robert Bernardo (northern California) -- so the rest of you are running
out of excuses distance-wise. :) At some of the past VCF East shows
we also had visitors from Missouri, Texas, and California, and from
Canada, Germany, Italy, and New Zealand.
We're still in the beginning stages of getting keynote speakers and
such, so no big announcements yet. But .... a little binary birdie says
Forrest Mims may give a talk, and there's a chance (slim, but not out of
the realm of possibility) that someone may accept my invitation whose
famous three-letter nickname once spelled the first letters of the words
in a company called "Wheels Of Zeus". ;)
So: right now we're waiting for Sellam to finish the registration page.
In the meantime, please start thinking about attending our event. The
previous VCF East was our biggest one ever, and we intend to out-do
ourselves this year.
- Evan
Arguing about this is about as daft as arguing about whether array indices
should be zero-based or one-based. It is a fact that some languages use 0 as
the index origin, others 1. It is also a fact that a century or decade
starts on the year ending with the digit 1, not 0, since there never was a
year 0. Possibly not logical, but nonetheless a fact. Claiming anything else
is plain wrong, just as claiming that the sun rotates around the earth is
wrong, even though it looks that way from the earth. And arguing about it is
completely pointless. The concept may be hard to grasp for mathematically
challenged persons who think that celebrating the start of a new millennium
in 2000 is a good marketing move, but they are still wrong. All the problems
with non-year-2000-capable software confuse the issue but the facts still
stand.
So happy new decade to all!
/Jonas
Would anyone on the list with CP/M or Z80 experience be interested in
helping design a CP/M cart for the C64 and C128? I'd like to learn more
about CP/M and the Z80, and I thought a revamped cartridge might be a
nice way of learning and tying back to my CBM bias.
Jim
I'm trying to find a source for an OKI MSM6242 RTC chip (18-pin DIP
package). As usual, all my Google searches turn up dozens and dozens of
sleazy-looking "we can get you anything, submit an RFQ.." sites.
This is the chip used in Amiga 2000s. I'm not sure if there are any
workable cross-references.
Steve
--
Good day,
I've been scanning the message archives off-and-on and finally took
the plunge and subscribed. Please let me know if my posting is out of place.
I have been a computing enthusiast for several years, starting with
the 8-bit game console genre and migrating through some of the 90s RISC
"big iron", and finally arriving at a point where I realize I have a
storage locker filled with stuff that hasn't been used in quite some time.
Not wanting to be selfish and keep it all to myself, I'm attempting to
finally clean out my inventory and disperse to good homes. Perhaps a
similar story and I'm late to this parade, but it's worth a shot.
My intent is to chip away at it slowly (the pile is large, and there's
no way I can haul it out to my living room to do a complete inventory).
Preference is: Make an offer. I'd prefer to have some shipping costs
covered at the very least.
I'm in upstate NY (14830), and have easy access to either the USPS or
UPS for shipping.
The first batch includes:
- 1x Commodore VIC-20 unit (no cables or adapters in this box). Should
work, cosmetically decent (slight yellowing, with what looks like a
small warped area in the plastic from some former owner setting a
cigarette on it)
- 1x Commodore C2N CASSETTE drive (attached cable). Should also work,
I used to use it to load various BASIC games (in another box).
- 1x TI-99/4a computer (silver with black trim). Includes a TI
Extended BASIC command module cartridge. No other cables or adapters.
- 1x The User's Guide to Texas Instruments: TI-99/4A Computer,
Software, and Peripherals spiral bound manual.
- 1x slightly beat up (but empty) box to the Atari 400/800 Computing
Language Assembler Editor. Includes unmarked Atari registration mailer
and warranty card (both good condition).
-Matthew
Off by one errors are so much fun to debug...
Celebrate whatever you want, whenever you want.
Just keep in mind that in the US, the official timekeepers, NIST have said that the third millennium, 21st century and the first decade of the 21st century all official started with 2001.
Of course we could just hold all our new year celebrations until Feb 3rd for Chinese New Year... Or better yet, just celebrate all over again. After all it is just an excuse to party mostly anyway right? ;)
I know we have some old(er) Apple developers out there, so I wanted to ask:
does MakeDataExecutable have a particular penalty?
I'm working on a PowerPC nanojit for Firefox so that Firefox's JavaScript
tracer can emit PPC instructions. It works, but it takes a huge initial
penalty, more than I would have expected. The pure-C++ JavaScript interpreter
beats it on many tasks. I'm sure that part of that is trying to beat gcc's
very good PPC optimizer, but I want to eliminate other variables.
It also seemed that PPC mulli is still slow compared to unrolled naked adds
and bitshifts, and naturally the Firefox bytecodes do not have support for
fused multiply-add or other things that POWER does well.
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- "In God We Trust (All Others We Monitor)" ----------------------------------
