Dragon's Lair Fans - Arcade Lifestyle
General Chat => Arcade Lifestyle => Topic started by: level42 on December 14, 2012, 09:34:45 PM
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Mail today:
(http://farm9.staticflickr.com/8489/8272369939_0770915c03_b.jpg) (http://www.flickr.com/photos/level_42/8272369939/)
Untitled (http://www.flickr.com/photos/level_42/8272369939/) by Level_42 (http://www.flickr.com/people/level_42/), on Flickr
Mmmm, not every day I get post from.....Russia Bulgaria....
(http://farm9.staticflickr.com/8503/8272370139_30f09fc82b_b.jpg) (http://www.flickr.com/photos/level_42/8272370139/)
Untitled (http://www.flickr.com/photos/level_42/8272370139/) by Level_42 (http://www.flickr.com/people/level_42/), on Flickr
Hey......there ar CHIPS inside !!!
But what da heck are they ?!?!?!
(http://farm9.staticflickr.com/8477/8272370447_0fe84c5b9a_b.jpg) (http://www.flickr.com/photos/level_42/8272370447/)
Untitled (http://www.flickr.com/photos/level_42/8272370447/) by Level_42 (http://www.flickr.com/people/level_42/), on Flickr
(http://farm9.staticflickr.com/8341/8272370703_9503d819f8_b.jpg) (http://www.flickr.com/photos/level_42/8272370703/)
Untitled (http://www.flickr.com/photos/level_42/8272370703/) by Level_42 (http://www.flickr.com/people/level_42/), on Flickr
;D
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Lol! Z80 and 6502 clones from the former "red states". Please report if they work! would be an interesting alternative to the original ones. ;D
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UB880D is rated at 2.5MHz
CM630P is rated at 1MHz
Per this link at least .. http://www.cpushack.com/soviet-cpus.html
Latter would be be too little for most of the ATARI 6502A (1.5MHz) boards... fwiw
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Bingo ! I bet Mrs. Caveman whispered that in your ear right ;) (By the way, do say "Hi" from me, and remind her she still owes me a beer...... ;))
Indeed ! The UB 880 is from the former DDR and is the Z80 clone.
The CM630P is from Bulgaria and a 6502 clone.
Yeah I want to fool around with them a bit and they sure were a heck lot cheaper than the originals ! :)
I was pretty amazed to find out about these. I never knew that the former East block countries could produce these, I mean, at the same time they were also still making Nixie tubes and Trabants.....
It would be fun to have a US game running on an East-block processor :) Especially Missile Command comes to mind for some reason.... ;D ;D
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UB880D is rated at 2.5MHz
CM630P is rated at 1MHz
Per this link at least .. http://www.cpushack.com/soviet-cpus.html
Latter would be be too little for most of the ATARI 6502A (1.5MHz) boards... fwiw
Mmmm.....meeehhhh, overclocking is of all ages ;) I'll slap a huge heat-sink on them ;)
Seriously.....are there any design differences between the 6502 and 6502A, or are they (like the later Intel practice) simply tested at a higher speed and stamped "A" if they passed the 2 Mhz test ?
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The first 6502 were not capable of 1.5Mhz, know that from own experience.
But try it :D maybe the bulgarian ones are fine to overclock them by 50%
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Hah, you smoked some original 6502's ?
Mmmm..... 50% is quite a bit to overclock....you tend to think: It's only half a megahertz...but in percentages it's of course pretty much.
Indeed all the (very rare) info I can find indicate 1 Mhz for the CM630P.
I did have my first success with one though:
I just converted my 6800 pod to a 6502 pod (simply a matter of changing the jumpers to the correct positions (regretfully meant a lot of soldering) and removing the 6800 and inserting a 6502.
First I tried the 6502 from the (not working) 6502 pod and it succeeded self-test on the 9100A :)
Then I _had_ to try the CM630P and well, again it passed the self-test :)
Don't think I will be running it in a critical thing like a Fluke pod, but at least
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We made a nice discussion about these with André a few days ago, here is the russian one I have. :D
(http://www.abc-cpu.com/index.php/chip-collection/image?format=raw&type=img&id=3292)