pps Posted January 4, 2013 Author Share Posted January 4, 2013 Will update the archive, you can find at pouet and my own webspace. Maybe I can update the post here too. Quote Link to comment Share on other sites More sharing options...
Sikor Posted January 4, 2013 Share Posted January 4, 2013 O.K. Thx. I made it for peoples, who want hear Miker's music longer. Quote Link to comment Share on other sites More sharing options...
pps Posted January 4, 2013 Author Share Posted January 4, 2013 Hmm, pouet and my site got the updated version. Here I have to upload it again... Version with DICE2013 v1.1:NYD2k13 - release 4.1.zip Quote Link to comment Share on other sites More sharing options...
+therealbountybob Posted January 6, 2013 Share Posted January 6, 2013 Nice work everyone Hey I got a (1st) mention - that made my day The IPC viewer scrambled the screen when loading pictures and locked up several times - but when I pressed break the load continued ok (130XE/1050); some of the pictures were too flickery to enjoy (PAL/CRT). Looking forward to being able to blow up some ships on Playsofts future game p.s. Liked the little Dice game Sikor Quote Link to comment Share on other sites More sharing options...
Sikor Posted January 6, 2013 Share Posted January 6, 2013 p.s. Liked the little Dice game Sikor Thx, Trbb Quote Link to comment Share on other sites More sharing options...
Synthpopalooza Posted January 7, 2013 Share Posted January 7, 2013 Programming question: The IPC viewer scrambled the screen when loading pictures and locked up several times - but when I pressed break the load continued ok (130XE/1050); Unfortunately I have no means of testing my programs on a real Atari, at least not yet. The break issue did not happen when I tested on Altirra emulator. I'm assuming the problem is a conflict between the disk load routine (TurboBASIC BGET command) and the combo DLI/VBI routine used by the PCIN graphics mode, that is only resolved by pressing the BREAK key. Is there any means to ensure that this doesn't happen when loading pictures? Also, is anyone else experiencing these issues? Quote Link to comment Share on other sites More sharing options...
Rybags Posted January 7, 2013 Share Posted January 7, 2013 Doing SIO if DLIs or medium/long running custom VBI can present problems, especially if it's at higher bitrate. Best solution is just present a blank screen or allow the user to choose. Quote Link to comment Share on other sites More sharing options...
pps Posted January 8, 2013 Author Share Posted January 8, 2013 Hmm strange. I got the mentioned glitches with ipc viewer only, when I didn't typed the 'Dx:' string. Quote Link to comment Share on other sites More sharing options...
+Stephen Posted January 8, 2013 Share Posted January 8, 2013 Nice work everyone Hey I got a (1st) mention - that made my day The IPC viewer scrambled the screen when loading pictures and locked up several times - but when I pressed break the load continued ok (130XE/1050); some of the pictures were too flickery to enjoy (PAL/CRT). Looking forward to being able to blow up some ships on Playsofts future game p.s. Liked the little Dice game Sikor What device is your Atari loading from (APE or real disk)? What is your PoKey divisor set to? Quote Link to comment Share on other sites More sharing options...
+therealbountybob Posted January 9, 2013 Share Posted January 9, 2013 What device is your Atari loading from (APE or real disk)? What is your PoKey divisor set to? My ole' 130XE and 1050 drive (think it might be a modified one but I just use it as standard)... I wouldn't know where to find a PoKey divisor though I did get a pair of nail clippers and a set of golf tees in this years crackers Quote Link to comment Share on other sites More sharing options...
+Stephen Posted January 9, 2013 Share Posted January 9, 2013 My ole' 130XE and 1050 drive (think it might be a modified one but I just use it as standard)... I wouldn't know where to find a PoKey divisor though I did get a pair of nail clippers and a set of golf tees in this years crackers OK - the only reason I asked about the divisor is most people these days use either APE or AspeQt and they allow you to set the baud rate. I'm not sure why you would get a loading timeout when using a real drive. I do have my 1050 hooked up, so I can test this later this evening when I get home. Quote Link to comment Share on other sites More sharing options...
Synthpopalooza Posted January 9, 2013 Share Posted January 9, 2013 I have found this used to happen alot to me when loading data while there is a DLI/VBI active. This has never happened to me under emulators though, but maybe there is a conflict. I wonder if shutting off Antic (POKE 559,0) during the load would resolve this? Quote Link to comment Share on other sites More sharing options...
Rybags Posted January 10, 2013 Share Posted January 10, 2013 Shutoff DMA - might work. But generally you don't need a DLI active if there's a blank screen anyway. And DMA setting should have little difference for VBlank because it's inactive for that largish portion of the display anyway. Emulation won't necessarily replicate it - a lot will depend on what method of SIO emulation is acvive, artificial speedup modes or patches will likely stop the behaviour. Quote Link to comment Share on other sites More sharing options...
phaeron Posted January 13, 2013 Share Posted January 13, 2013 I've been able to repro this in Altirra with SIO disk patch disabled at standard baud rate. The problem is that the VBI routine is taking too long. The custom VBI and the stage 1 system VBI combined take 8 scanlines, which is marginal timing-wise for 19.2Kbaud. Now, this is rare enough that ordinarily SIO would retry and there would be just a small hiccup. Most of the time it does, and if you check the sector numbers you can see some sectors getting re-read. However, there is a specific failure case when the VBI fires just after the Complete byte that SIO doesn't handle properly. Due to a bug, SIO stomps one of its variables and returns success (Y=$01) with garbage data instead of a timeout error. A high-speed OS may handle this more or less gracefully. Quote Link to comment Share on other sites More sharing options...
Synthpopalooza Posted January 13, 2013 Share Posted January 13, 2013 I've been able to repro this in Altirra with SIO disk patch disabled at standard baud rate. The problem is that the VBI routine is taking too long. The custom VBI and the stage 1 system VBI combined take 8 scanlines, which is marginal timing-wise for 19.2Kbaud. Now, this is rare enough that ordinarily SIO would retry and there would be just a small hiccup. Most of the time it does, and if you check the sector numbers you can see some sectors getting re-read. However, there is a specific failure case when the VBI fires just after the Complete byte that SIO doesn't handle properly. Due to a bug, SIO stomps one of its variables and returns success (Y=$01) with garbage data instead of a timeout error. A high-speed OS may handle this more or less gracefully. So, would disabling the VBI during the load (that is, setting 546/547 to the default values), and then re-enabling it after the load (to point back to the custom routine), fix this problem? Quote Link to comment Share on other sites More sharing options...
phaeron Posted January 13, 2013 Share Posted January 13, 2013 Yes, that should do the trick. Alternatively, you could move the code to the deferred VBI, which is automatically disabled whenever CRITIC is set and which is run with interrupts enabled. Quote Link to comment Share on other sites More sharing options...
Synthpopalooza Posted January 13, 2013 Share Posted January 13, 2013 OK, stupid question ... Lines 1250 and 1260 in my IPC viewer program contain the routine for SETVBV (which I have in a string variable) ... how would these lines be modified to use deferred VBI? Quote Link to comment Share on other sites More sharing options...
Creature XL Posted January 13, 2013 Share Posted January 13, 2013 OK, stupid question ... Lines 1250 and 1260 in my IPC viewer program contain the routine for SETVBV (which I have in a string variable) ... how would these lines be modified to use deferred VBI? Don't know the code, but if you use SETVBV from the OS then the difference is that the immeadiate VBI uses "LDA #6" and the deferred uses "LDA #7". so it might be as easy as exchanging a "6" with a "7". Quote Link to comment Share on other sites More sharing options...
Synthpopalooza Posted January 13, 2013 Share Posted January 13, 2013 Made a small fix to IPC viewer, should not show garbage anymore, and hopefully the lockup issue is fixed. Can anyone test, please? ipc viewer.atr Quote Link to comment Share on other sites More sharing options...
+therealbountybob Posted January 14, 2013 Share Posted January 14, 2013 Made a small fix to IPC viewer, should not show garbage anymore, and hopefully the lockup issue is fixed. Can anyone test, please? now loads fine (130XE/1050 drive) still shows some garbage but then goes to black screen during picture load - directory function would look better with screen turned off too. Hope reporting this helped out Quote Link to comment Share on other sites More sharing options...
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