+CyranoJ Posted November 11, 2011 Share Posted November 11, 2011 While we're discussing adding a SID, can we go the whole distance and add a Kempston joystick interface and a Disney Sound Source? Quote Link to comment Share on other sites More sharing options...
José Pereira Posted November 11, 2011 Share Posted November 11, 2011 While we're discussing adding a SID, can we go the whole distance and add a Kempston joystick interface and a Disney Sound Source? 'Pardon' of my ignorance, but what is that? Can you explain or post an image? (probably would be nice ... even that I don't know what it is ...) Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted November 11, 2011 Share Posted November 11, 2011 heheh Kempston Joystick and Disney Sound Source Two bits of junk from the 80s that we should all be glad no longer exist Quote Link to comment Share on other sites More sharing options...
José Pereira Posted November 11, 2011 Share Posted November 11, 2011 (edited) Kempston I remember, I think it was for the Zx Spectrum/Timex guys play with our type Joysticks but never saw that Disney thing. Edited November 11, 2011 by José Pereira Quote Link to comment Share on other sites More sharing options...
+rdemming Posted November 11, 2011 Share Posted November 11, 2011 While we're discussing adding a SID, can we go the whole distance and add a Kempston joystick interface and a Disney Sound Source? Since the Disney Sound Source is nothing more than a simple DAC, we already have it in the form of the Covox interface available as dedicated board from Lotharek or part of Candle's Simple Stereo board. And instead of the Kempston interface, there is something much better: Multi-Joy, 8 Joystick ports instead of Kempston's only two Next... Two bits of junk from the 80s that we should all be glad no longer exist Kempston inteface is still better than playing games with the rubber keys of the ZX-Spectrum Robert Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted November 11, 2011 Share Posted November 11, 2011 Kempston inteface is still better than playing games with the rubber keys of the ZX-Spectrum Wobble. Crash. Reload Quote Link to comment Share on other sites More sharing options...
sack-c0s Posted November 11, 2011 Share Posted November 11, 2011 interface II was better - as good as a kempston on a rubber keyed spectrum, the later machines had ports built-in, and the joystick presses were mapped to 12345/67890 for the 2 sticks so you still had compatibility for those with rubber keys and no joystick. Quote Link to comment Share on other sites More sharing options...
carmel_andrews Posted November 11, 2011 Share Posted November 11, 2011 (edited) mmm. that Picture of the kempston speecy interface....I wonder how you'd pronounce the first part of the manufacturers name....is it DK' or DICK Edited November 11, 2011 by carmel_andrews Quote Link to comment Share on other sites More sharing options...
St(r)yker Posted November 14, 2011 Share Posted November 14, 2011 The need for 25 people - to the production started. 2 Quote Link to comment Share on other sites More sharing options...
+Stephen Posted November 15, 2011 Share Posted November 15, 2011 The need for 25 people - to the production started. Sorry if it's been mentioned, but this is a long thread and I don't want to re-read any of the bickering. Was a cost ever mentioned, and is it complete (i.e., contains a SID chip)? Quote Link to comment Share on other sites More sharing options...
simonl Posted November 15, 2011 Share Posted November 15, 2011 (edited) The need for 25 people - to the production started. I'd buy one if there's a production run coming up, looks like fun. Has anyone published a memory map for it? Cheers, Simon Edited November 15, 2011 by simonl Quote Link to comment Share on other sites More sharing options...
emkay Posted November 15, 2011 Share Posted November 15, 2011 Heck, why not a cartrigde with a real Synth-Chip? Quote Link to comment Share on other sites More sharing options...
Rybags Posted November 15, 2011 Share Posted November 15, 2011 Interest here too - but inclusion of SID itself would be real helpful since they're getting real hard to find. The memory mapping - since it's a cart, the best and most likely mapping would be to page $D5. So, just use the same offsets as a C64 uses, except to $D500, $D540 or wherever it happens to be based at. The query I have is clock speed. Closest we could get without being fancy would be a /2 clock but then we end up with about 0.89 MHz instead of 0.99 or whatever. No great problem I suppose, would mean though that existing tunes would need the notes redoing. Quote Link to comment Share on other sites More sharing options...
simonl Posted November 15, 2011 Share Posted November 15, 2011 (edited) The memory mapping - since it's a cart, the best and most likely mapping would be to page $D5. So, just use the same offsets as a C64 uses, except to $D500, $D540 or wherever it happens to be based at. The query I have is clock speed. Closest we could get without being fancy would be a /2 clock but then we end up with about 0.89 MHz instead of 0.99 or whatever. No great problem I suppose, would mean though that existing tunes would need the notes redoing. Thanks, sounds like a reasonable assumption. As far as the tunes go, I guess many existing player routines will be synced to vertical blank so should be fine in general unless there's lots of CPU-bound or bit banging player routines out there. Heck, why not a cartrigde with a real Synth-Chip? Why not indeed, if anyone's making one sign me up for that as well! Cheers, Simon Edited November 15, 2011 by simonl Quote Link to comment Share on other sites More sharing options...
candle Posted November 15, 2011 Share Posted November 15, 2011 sid inside this cartridge runs at 0.98mhz as in pal c64 memory map is quite simple, first one (production version) is mapped to D500-D51F, the other one is at D520-D53F for those who want more there is always soundboard 1 Quote Link to comment Share on other sites More sharing options...
+CharlieChaplin Posted November 15, 2011 Share Posted November 15, 2011 (edited) Well, I want a SID-cart ! Depending on the price and if a SID chip is included or not, maybe even two carts... So, whats the price for a cart with or without SID chip, etc. ?!? -Andreas Koch. Edited November 15, 2011 by CharlieChaplin Quote Link to comment Share on other sites More sharing options...
+Larry Posted November 15, 2011 Share Posted November 15, 2011 I'm very interested, but as others state, what is the price with or without the SID included? If you don't know exactly, please give us a "worst case" that you can estimate. I'd also still like an answer to my question about whether the original C64 SID files have to be revised/altered to play on the A8? (Or just ported and played as-is.) @Candle, can you answer the porting question? Line Out needs to go to an amplifier, I presume? -Larry Quote Link to comment Share on other sites More sharing options...
candle Posted November 16, 2011 Share Posted November 16, 2011 i can say just that the sid chip is not going to be included - its in buyer responsibility to have one (two) matching chips - in Poland they are dime and dozen, but come packed inside wierd box with some keyboard sticking out of it - dirt cheap (i remember paying $7 shipped for them) there will be jumper inside to select between "old" and "new" sid, but both chips need to be the same i can't get you any quote at this moment, since we postponed any futher work until someone of people who received prototypes (received, not won) write apriopriate software for it maybe this is just wrong, but this is the way it is i can only say that comparing to prototype, hardware will be much simplier, though providing the same clock accuracy for sid chip i don't want to speculate about the price, but my best guess at the moment is that it won't stand off from any other fancy cartridge available today 1 Quote Link to comment Share on other sites More sharing options...
+Larry Posted November 16, 2011 Share Posted November 16, 2011 Hi Candle- Two matching SID chips? I only see one on the board -- can you explain? (Unless there are plans for a stereo version.) I have a Stereo SID setup -- one naturally in a C64 and the "SID Symphony" cart. (The A8 cart looks a lot like this.) "Slight SID" -- as in "almost SID" or? -Larry i can say just that the sid chip is not going to be included - its in buyer responsibility to have one (two) matching chips - in Poland they are dime and dozen, but come packed inside wierd box with some keyboard sticking out of it - dirt cheap (i remember paying $7 shipped for them) there will be jumper inside to select between "old" and "new" sid, but both chips need to be the same i can't get you any quote at this moment, since we postponed any futher work until someone of people who received prototypes (received, not won) write apriopriate software for it maybe this is just wrong, but this is the way it is i can only say that comparing to prototype, hardware will be much simplier, though providing the same clock accuracy for sid chip i don't want to speculate about the price, but my best guess at the moment is that it won't stand off from any other fancy cartridge available today Quote Link to comment Share on other sites More sharing options...
candle Posted November 16, 2011 Share Posted November 16, 2011 slight as the name of demoscene group that seban (the author) is from plase watch bitter reality or overmind and see the people behind final version will be stereo, thus two sid chips Quote Link to comment Share on other sites More sharing options...
oky2000 Posted November 16, 2011 Share Posted November 16, 2011 While we're discussing adding a SID, can we go the whole distance and add a Kempston joystick interface..... No! because unlike Sinclair computers the A8 had joystick ports built into the machine Quote Link to comment Share on other sites More sharing options...
Thorsten Günther Posted November 17, 2011 Share Posted November 17, 2011 (edited) heheh Kempston Joystick That's a dk'tronics, not a Kempston (which was a good design using IN(31) on the Speccy and providing one joystick port). On this interface, Port 2 is Kempston compatible while Port 1 is compatible with Port 2 of the Sinclair Interface 2, which makes it a mess for two-player games (it's more like dual-compatibility one-player interface). But BTT: It obviously is possible to wire a SID to an XL, but except as proof-of-concept or for the purposes candle invented this for: where's the point? The VBXE is an already existing, under-utilized hardware expansion, but even if its features are not used, it provides you with additional RAM and a crisp-clear display. What does the SID do if there's no software for it, as all the SID software is written for the (nowadays) dirt-cheap C=64? Software sells hardware, not vice versa! Thorsten Edited November 17, 2011 by Thorsten Günther Quote Link to comment Share on other sites More sharing options...
candle Posted November 17, 2011 Share Posted November 17, 2011 What does the SID do if there's no software for it, as all the SID software is written for the (nowadays) dirt-cheap C=64? Software sells hardware, not vice versa! Thorsten ditto besides - i didn't invented it, seban/slt did - i'm just redoing it if at all because the above - without software its just a piecie of junk anyways Quote Link to comment Share on other sites More sharing options...
St(r)yker Posted November 26, 2011 Share Posted November 26, 2011 Altirra + soft Altirra-2.00-SlightSID.zip SID_Player_d5.zip Quote Link to comment Share on other sites More sharing options...
xxl Posted November 27, 2011 Share Posted November 27, 2011 Hi, try this gem plays .sid x1,x2,x3,x4,x8 per frame. type: xdrive.lib sio drive and ataridos filesystem xdrive.atr Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
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.