The following ti99-4a poll is now closed. Here are the final results: POLL QUESTION: Yes, buy the chips, I want to upgrade my geneve to the 512 version of the...
ti99-4a@yahoogroups.com
Jan 1, 2003 8:37 am
20273
... Wow, you're fast. I didn't even had the time to reply. I also don't (didn't) know what it is! But what i've read so far it looks interesting to boot from a...
Can anyone answer these questions? What is the part number for the geneve RTC? What's Richards and Harolds BBS numbers? Does anyone have text documents of: ...
My commented disassembly may no longer exist. However, putting your bootcode into a flash chip would be relatively simple, though testing is always the...
ACK! I missed the poll! Add me to the yes list.
Greg
-----Original Message-----
From: ti99-4a@yahoogroups.com [mailto:ti99-4a@yahoogroups.com]
Sent:...
In a message dated 1/1/03 9:20:36 AM Eastern Standard Time, ... I think I can answer this one, The Hidden Reef BBS, 718.448.9402, (Running on a souped up 4a.) ...
A poll such as this during the Christmas/New Year Holidays was not a good idea unless the time-frame was extended to allow people to get back to normal...
Bill - There is a one-byte difference between a Genmod Geneve EPROM and a standard Geneve EPROM. If that byte can be changed (without harm) in the PFM code, ...
Hi Bill, the thing about the pole is that I don't have any control concerning chip availability. In this case, I was given a heads up that this lot of chips...
I really don't think I would take the chance on having my one remaining GenMod Geneve modified in what I believe would be an "upgrade" of limited value. With...
Hi Richard, Yes, I guess that is a legitimate reason to do a quick, short duration poll, but the results are not conclusive because of timing and duration. As...
(It looks like this message that I sent yesterday afternoon never made it to yahoo, so I'm resending it.) Hi Tony, I just came across the ForTI Music System...
Tony, AFAIR the last 128K of the 2MB Memex is blocked in MDOS, and that is all that is used for booting. The remaining memory is used as a RAM disk. I've got...
... I hope this makes it okay and that the ISP trouble clears up, that's never fun. ... True, for it's day (late '70s) it wasn't bad at all, and some of the...
Dan Olson
dano@...
Jan 1, 2003 10:55 pm
20288
... Maybe I remember wrong, but i thought that the 6510 was used quite a bit for all video updates as well as other I/O (user port and disk), making it such...
Dan Olson
dano@...
Jan 1, 2003 11:04 pm
20289
... I don't know how tough this would be, but if you have a PS that has adjustments for the outputs, you could adjust them to get +6 adn +13 or something like...
Dan Olson
dano@...
Jan 1, 2003 11:11 pm
20290
... I thought it was just a glitch in composit video where if you have two colors side by side, your screen shows a 'third color' where the two blend. Of...
Dan Olson
dano@...
Jan 1, 2003 11:15 pm
20291
the PFM is banked in using 128K chunks in the last 128K window of the Geneve memory map, pages >f0->ff. Two 9901 CRU lines control which 128k bank is visible....
... The 99/8 used the same VDP as the 99/4A, the TMS9918A. If you have a 99/4A with Myarc 128K or 512K card and Myarc Extended BASIC Level IV Version 2.1, you...
I haven't opened the PS on this box yet, so I don't know if it has adjustments or not, but if I could do that I would then have to externally regulate those...
LO & BEHOLD! As soon as I dug up some other screws (and more flat washers), and had the TI bus backplane firmly mounted, I found the originals on a bookcase...
GenMod Geneve remains solid as a rock! Booted from HRD, MFM hard drive & SCSI hard drive. I would have to fail the MFM hard drive (remove the common ...
... No, the screen can be on. Sprites, however, cause a variable DMA penalty that causes too much trouble with serial bus access, so those must be turned off...
... In general, artifacting refers to a falsely coloured pixel, usually due to display limitations (such as on a television set -- NTSC isn't maligned as Never...
... the 8-bit ... there was ... Yeah, I've noticed. The PC version's the best I've seen thus far, and it, unfortunately, lacks music. (Although I think there...
Adam & Cameron; I de-lurk to let you know that I think you guys have lost sight of the vs TI aspect of your original post. Too much off topic banter about...
Actually, the original idea is that Adam here (IIRC) is converting games from the Apple and the Commodore to the TI-99/4a. In order to be able to do that he...
Thank you, Dave. You hit the nail on the head with that one. (Hopefully no one takes offense at me bringing up carpentry, or thinks I should find a carpentry...
... Sure, you'd use the same system that the PEB uses I suppose. ... That's a lot to run off the power supply and regulate out-board I suppose. Maybe some sort...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
