xxl Posted October 3, 2010 Share Posted October 3, 2010 look at this ! http://space1999.defence-force.org/ http://stormlord.defence-force.org/ http://1337.defence-force.org/ http://www.old-computers.com/museum/com … 9&st=1 this is 6502 computer with AY sound chip! is there any ATMOS memory map where i can find how program AY,GFX,interrupts and IO in assembler? find one, but there is only basic comands :/ Quote Link to comment Share on other sites More sharing options...
Rybags Posted October 3, 2010 Share Posted October 3, 2010 (edited) AY... *pukes* BBC uses that chip too and its 6502 at 2 MHz (double ORIC's) supposedly doesn't suffer any DMA penalties so maybe it'd be a better experimentation foundation for that sound chip. Possibly the best lead for getting some docs - found at the ORIC Wiki article: http://www.oric.org Found another site: http://www.48katmos.freeuk.com/ Edited October 3, 2010 by Rybags Quote Link to comment Share on other sites More sharing options...
OldAtarian Posted October 3, 2010 Share Posted October 3, 2010 AY... *pukes* BBC uses that chip too and its 6502 at 2 MHz (double ORIC's) supposedly doesn't suffer any DMA penalties so maybe it'd be a better experimentation foundation for that sound chip. Possibly the best lead for getting some docs - found at the ORIC Wiki article: http://www.oric.org Found another site: http://www.48katmos.freeuk.com/ And the BBC Micro probably has the best implementation of basic of any 8 bit home computer in the world. I wish I could find one in the US. Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted October 3, 2010 Share Posted October 3, 2010 And the BBC Micro probably has the best implementation of basic of any 8 bit home computer in the world. I wish I could find one in the US. I think the nearest you'll get to an NTSC one is Supergirl :- http://www.starringthecomputer.com/feature.php?f=396 Quote Link to comment Share on other sites More sharing options...
Rybags Posted October 3, 2010 Share Posted October 3, 2010 (edited) Yeah, it's pretty good (and fast). The OS is also fairly advanced and the machine's architecture well thought out in that you could have apps, utilities and the DFS (DOS) installed internally and they'd be banked in on demand and not hog much resources when not used. The games... although it had better base graphics capabilities than most, ie double the bitdepth at 160, 320 resolutions and it could do 80-column (640) modes, the BBC was crippled in that 32K was the most common RAM config. Also suffered in that it didn't have any hardware sprites or scrolling ability, although I believe VScrolling was possible via origin changes. The other downside was that it only has 8 colours (the base RGB mixes), in modes where 16 colours are available the extra 8 are just 2 colours from the base 8 alternating under software control. The 32K RAM left you with not a lot to play with. The disk drives were pretty quick too, fairly sure they used a similar philosophy to the ST/Amiga ie - disk controller onboard the computer, directly controlling the drives. Edited October 3, 2010 by Rybags Quote Link to comment Share on other sites More sharing options...
xxl Posted October 3, 2010 Author Share Posted October 3, 2010 > Possibly the best lead for getting some docs - found at the ORIC Wiki article: http://www.oric.org > Found another site: http://www.48katmos.freeuk.com/ nah... only basic info :/ i need real memory map, how VIA works... yes, BBC Micro is better :-) Quote Link to comment Share on other sites More sharing options...
Rybags Posted October 3, 2010 Share Posted October 3, 2010 A bit of tech info here http://twilighte.oric.org/twinew/start.htm Oric FAQ here http://freespace.virgin.net/james.groom/oric/oricfaq.htm This guy has a book with the tech stuff, but looks like a bunch of links are broken http://home.btconnect.com/geffers/#oric Webring (remember those) http://www.webring.org/hub?ring=oric Quote Link to comment Share on other sites More sharing options...
Rybags Posted October 3, 2010 Share Posted October 3, 2010 Downloadable Basic Manual (PDF) ... has a little memory map and tech info. http://www.1000bit.it/support/manuali/download.asp?id=368 Quote Link to comment Share on other sites More sharing options...
Rhod Posted October 3, 2010 Share Posted October 3, 2010 http://osdk.defence-force.org/ others kit http://www.atomicfe.com/forums/index.php?PHPSESSID=69ce58dd0713bba60cf16b89d7a5d110&board=19.0 Quote Link to comment Share on other sites More sharing options...
xxl Posted October 3, 2010 Author Share Posted October 3, 2010 thank you all. i think there is a chance to start ATMOS games on atari the same way as bbc micro (new interrupts & IO) Quote Link to comment Share on other sites More sharing options...
Irgendwer Posted October 3, 2010 Share Posted October 3, 2010 (edited) cc65 has the Oric also as target. You could have a look into the library functions and memory definitions. I'm sure Uz knows some resources for the Oric target too... Edited October 3, 2010 by Irgendwer Quote Link to comment Share on other sites More sharing options...
xxl Posted October 3, 2010 Author Share Posted October 3, 2010 (edited) first attempt Edited October 3, 2010 by xxl 1 Quote Link to comment Share on other sites More sharing options...
xxl Posted October 3, 2010 Author Share Posted October 3, 2010 :D http://atari.pl/stormlord_atmos.rar ok, there is some problems, but... who cares --- interrupts is incorrect and... Quote Link to comment Share on other sites More sharing options...
emkay Posted October 3, 2010 Share Posted October 3, 2010 http://atari.pl/stormlord_atmos.rar ok, there is some problems, but... who cares --- interrupts is incorrect and... Someones knows about a 3 channel rendition of the original tune (C64/Amiga) Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted October 3, 2010 Share Posted October 3, 2010 xxl... 6502 emulation maniac is back... Quote Link to comment Share on other sites More sharing options...
OldAtarian Posted October 3, 2010 Share Posted October 3, 2010 And the BBC Micro probably has the best implementation of basic of any 8 bit home computer in the world. I wish I could find one in the US. I think the nearest you'll get to an NTSC one is Supergirl :- http://www.starringthecomputer.com/feature.php?f=396 There was a small run of the first units made for North America but it was recalled and they were all converted to UK units when they didn't sell. Somebody out there somewhere has one or knows someone who has one. It's just a matter of networking the right vintage computer sites to find that person. Shipping from the UK is astronomical and I would only resort to that as a last resort. Quote Link to comment Share on other sites More sharing options...
emkay Posted October 3, 2010 Share Posted October 3, 2010 Stormlord on the A8 would be really nice. Quote Link to comment Share on other sites More sharing options...
Tezz Posted October 3, 2010 Share Posted October 3, 2010 Really impressive work again xxl Quote Link to comment Share on other sites More sharing options...
JamesD Posted October 3, 2010 Share Posted October 3, 2010 (edited) You could download the source for Space 1999 and port it without having to hack the Oric binary. Source Edited October 3, 2010 by JamesD Quote Link to comment Share on other sites More sharing options...
JamesD Posted October 3, 2010 Share Posted October 3, 2010 AY... *pukes* And the POKEY is sooooo superior. *pukes* Quote Link to comment Share on other sites More sharing options...
emkay Posted October 3, 2010 Share Posted October 3, 2010 AY... *pukes* And the POKEY is sooooo superior. *pukes* Depending on the AY Chip version and what type of music is used. If it comes to bass sounds, POKEY loses anyways. But the programmable waveforms seem to be endless with POKEY . Only SID can do better, when comparing common soundchips of the early 80s. Quote Link to comment Share on other sites More sharing options...
TMR Posted October 3, 2010 Share Posted October 3, 2010 Stormlord on the A8 would be really nice. One thing to watch for is that the Oric version of Stormlord isn't a straight conversion, it's flick screen and uses different level layouts. It's still a good game (and as feckin' hard as the Spectrum original) but does play differently. Quote Link to comment Share on other sites More sharing options...
JamesD Posted October 3, 2010 Share Posted October 3, 2010 AY... *pukes* And the POKEY is sooooo superior. *pukes* Depending on the AY Chip version and what type of music is used. If it comes to bass sounds, POKEY loses anyways. But the programmable waveforms seem to be endless with POKEY . Only SID can do better, when comparing common soundchips of the early 80s. SID... *pukes* Quote Link to comment Share on other sites More sharing options...
OldAtarian Posted October 3, 2010 Share Posted October 3, 2010 (edited) AY... *pukes* And the POKEY is sooooo superior. *pukes* Depending on the AY Chip version and what type of music is used. If it comes to bass sounds, POKEY loses anyways. But the programmable waveforms seem to be endless with POKEY . Only SID can do better, when comparing common soundchips of the early 80s. SID... *pukes* The SID chip rules. You have to applaud Commodore once in a while when they do good. It can't all be venom and vitriol. Edited October 3, 2010 by OldAtarian Quote Link to comment Share on other sites More sharing options...
high voltage Posted October 3, 2010 Share Posted October 3, 2010 AY... *pukes* And the POKEY is sooooo superior. *pukes* Of course, there is no doubt about that. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.