xxl Posted June 3, 2012 Share Posted June 3, 2012 > On my real 800 (NTSC, OS B, GTIA, 48K) this says, "Sorry, Emulator" no RAM under ROM, that program didn't work on old 400/800 Atari. Quote Link to comment Share on other sites More sharing options...
Xuel Posted June 3, 2012 Share Posted June 3, 2012 ? Try disrupteddl.xex on Atari On my real 800 (NTSC, OS B, GTIA, 48K) this says, "Sorry, Emulator" On my 800XL it says, "OK, Atari" The test program sets PORTB to disable the ROM and install its own NMI and IRQ vectors. That doesn't work on an 800. Quote Link to comment Share on other sites More sharing options...
phaeron Posted June 4, 2012 Author Share Posted June 4, 2012 I've known about this problem for a while -- this is what the one Acid800 test checks that still doesn't pass on Altirra. Basically, certain combinations of mode lines and/or horizontal scrolling can cause ANTIC to lose track of the playfield DMA clock, causing it to continue DMAing through horizontal blank and interfering with display list and P/M graphics fetches. The bug is partially documented in my hardware manual. There are a lot of complex conditions involved in this and it affects a lot of ANTIC DMA processing, including the DMA fetch and shift clocks and line buffer addressing. This is basically the big last unemulated hardware bug that I know of. Quote Link to comment Share on other sites More sharing options...
xxl Posted June 10, 2012 Share Posted June 10, 2012 $D000-$D7FF - Atari HW $D000-$D7FF - SELF TEST ROM $D000-$D7FF - Unavailable RAM PORTB bit 7: base RAM $5000-$57FF (1); or SELF TEST $5000-$57FF (0) bit 5: $4000-$7FFF ANTIC base RAM (1); EXT RAM (0) bit 4: $4000-$7FFF CPU base RAM (1); EXT RAM (0) bit 0: ROM $C000-$CFFF & $D800-$FFFF (1); or RAM $C000-$CFFF & $D800-$FFFF (0) Atari can: 0xxxxxx1 - map ROM (ROM form $D000-$D7FF) with SELF TEST to $5000-$57FF 1xxxxxx0 - ROM OFF - RAM $C000-$CFFF & $D800-$FFFF Atari ignores this: 0x11xxx0 - map RAM to $5000-$57FF (RAM form $D000-$D7FF) AND ROM OFF - RAM $C000-$CFFF & $D800-$FFFF but Simius unlock this option in MMU (I replace MMU). So, in my Atari without adding any memory I have 64 KB accessible base RAM. I have a request. You could add MapRAM emulation to Altirra - it will be easier for me to write programs... testmapram.obx Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted June 20, 2012 Share Posted June 20, 2012 Just keeping up to date http://www.virtualdub.org/beta/Altirra-2.10-test27.zip Test 2.10 beta 27 A few debugger fixes By Phaeron.. Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 20, 2012 Share Posted June 20, 2012 xxl. you had replaced MMU to get access to $d000-$d7ff RAM? Quote Link to comment Share on other sites More sharing options...
xxl Posted June 20, 2012 Share Posted June 20, 2012 MAPRAM allow to disable ROM when SELF TEST is enabled (PORTB 0x11xxx0) Quote Link to comment Share on other sites More sharing options...
+rdemming Posted June 20, 2012 Share Posted June 20, 2012 MAPRAM allow to disable ROM when SELF TEST is enabled (PORTB 0x11xxx0) Maybe Candle could add MAPRAM emulation in the Ultimate1MB so more systems support this mode. Although those extra accessible 2KB seems nothing compared to the 1MB extended memory already accessible in the U1MB But those 2KB might be just the extra memory that is needed for programs that want to run on non extended Atari's (with only a replaced MMU) and can than also run on U1MB systems too. Robert Quote Link to comment Share on other sites More sharing options...
xxl Posted June 20, 2012 Share Posted June 20, 2012 better add emulation mapram to Altirra :-) Quote Link to comment Share on other sites More sharing options...
AdamM Posted June 20, 2012 Share Posted June 20, 2012 Hello All. I am a very big fan of Altirra and spend great time with it. I think I've found a quite interesting bug regarding cassette player: If using tape player with disabled "SIO Patch", it seems that in most scenarios the tape player does not start at all! (for example when attempting to load some BASIC program from tape. After use of CLOAD, user presses any key(after 'beep'). But the tape player becomes stuck). It is very easy to test: 1) emulated hardware is for example 800XL. Does not matter if PAL or NTSC. 2) disable SIO patch for cassette (menu: 'System' -> 'Cassette' -> disable option 'SIO Patch') 3) go into BASIC 4) load any .cas tape image (menu: 'File' -> 'Cassette' -> 'Load..') (Note: in this test, it's no matter what is the content of the tape, because loading from tape will not start at all! So this can be any .cas file that you have.) 5) type CLOAD and press ENTER. After the beep press ENTER again. 6) Observed: the tape is not starting at all (even no loading time counter visible). Cassette player has stuck. The recovery action that I know is to make cold reset (shift+F5). After cold reset, repeat the scenario above, and the tape will work correctly. This is probably a very old issue. Has it already been known? With enabled 'SIO Patch' the problem is not existing. I know that the issue is not 'high priority' but for real cassette lovers would be great to have it working... Could somebody please confirm this and if needed, kindly let Phaeron know about it? Maybe some day he would find some time to look into it. Quote Link to comment Share on other sites More sharing options...
carmel_andrews Posted June 21, 2012 Share Posted June 21, 2012 I think there seems to be a colour issue with the self test (both pal and ntsc), on pal the letters on the main menu are slightly pinkish, whereas on NTSC it's green Quote Link to comment Share on other sites More sharing options...
phaeron Posted June 22, 2012 Author Share Posted June 22, 2012 Tape issue was because the load path didn't hit 'play' on the emulated tape deck... only cold reset did. Fixed: http://www.virtualdub.org/beta/Altirra-2.10-test28.zip http://www.virtualdub.org/beta/Altirra-2.10-test28-src.zip The default colors should be OK for the self test -- it's pretty close to my NTSC 130XE, at least, including the green 40-column text. Remember that there can and will be variations in color between Ataris, although the presets in Altirra are designed to be reasonable. I must confess that I can't really see the point of having 2K of extra RAM mapped to $5000-57FF, particularly with the abundance of full RAM expansions. If you could map RAM to $D000-D7FF, then yeah, you could do interesting new things with that. Just getting 2K more of RAM, not so much. I'm willing to be convinced otherwise, though. Quote Link to comment Share on other sites More sharing options...
candle Posted June 22, 2012 Share Posted June 22, 2012 ultimate1mb and incognito boards maps base ram into d000-d7ff space - just in case you would ever consider adding this Quote Link to comment Share on other sites More sharing options...
+rdemming Posted June 22, 2012 Share Posted June 22, 2012 ultimate1mb and incognito boards maps base ram into d000-d7ff space - just in case you would ever consider adding this As the current documentation on spiflash only mentions mapping ram to $D600-$D7FF space instead of $D000-$D7FF, I suppose this is only in the "new" U1MB 'firmware'. I quess this base RAM in IO space is also used to implement ATR mounting? Robert Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted June 22, 2012 Share Posted June 22, 2012 I quess this base RAM in IO space is also used to implement ATR mounting? The ATR-enabled PBI BIOS uses nearly four pages of RAM scattered between $D100-$D7FF: FAT variables at $D100, partition table at $D500, and 512 byte sector buffer at $D600. ROM usage (at $D800) is currently two banked 2KB blocks. Quote Link to comment Share on other sites More sharing options...
AdamM Posted June 22, 2012 Share Posted June 22, 2012 Tape issue was because the load path didn't hit 'play' on the emulated tape deck... only cold reset did. Fixed: http://www.virtualdu...2.10-test28.zip http://www.virtualdu...-test28-src.zip wow! Works perfectly! Big thanks for the fix. Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted June 25, 2012 Share Posted June 25, 2012 (edited) Just an update.. Phaeron is up to beta 30 now, 4 releases in a week...phew. Fixes / work around for an Intel shader issue.. http://www.virtualdub.org/beta/Altirra-2.10-test30.zip Edited June 25, 2012 by Mclaneinc Quote Link to comment Share on other sites More sharing options...
w1k Posted June 25, 2012 Share Posted June 25, 2012 and what about that cart i wrote? Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted June 25, 2012 Share Posted June 25, 2012 and what about that cart i wrote? I presume you mean the ram cart? Bumping in case Avery missed it.. http://www.atariage.com/forums/topic/191852-altirra-200/page__st__125#entry2534825 Quote Link to comment Share on other sites More sharing options...
xxl Posted June 27, 2012 Share Posted June 27, 2012 I must confess that I can't really see the point of having 2K of extra RAM mapped to $5000-57FF, particularly with the abundance of full RAM expansions. If you could map RAM to $D000-D7FF, then yeah, you could do interesting new things with that. Just getting 2K more of RAM, not so much. I'm willing to be convinced otherwise, though. I use MAPRAM for this: 1 Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted June 27, 2012 Share Posted June 27, 2012 That is a nice application, for just 2k extra memory. Quote Link to comment Share on other sites More sharing options...
xxl Posted June 28, 2012 Share Posted June 28, 2012 program takes much less than 2kb in MAPRAM - allow save/load stats in any (fileformat) old games. Quote Link to comment Share on other sites More sharing options...
phaeron Posted June 29, 2012 Author Share Posted June 29, 2012 Try this version for MapRAM support (under System | Memory Size): http://www.virtualdub.org/beta/Altirra-2.10-test31.zip http://www.virtualdub.org/beta/Altirra-2.10-test31-src.zip Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted June 29, 2012 Share Posted June 29, 2012 Any programs for us to try this new feature out with please? Quote Link to comment Share on other sites More sharing options...
xxl Posted June 29, 2012 Share Posted June 29, 2012 (edited) thanks! but... not working properly. try program from post 154 (animgif - click) or from atachment. --- rainbow means: wrong. altirramapramtest.obx Edited June 29, 2012 by xxl Quote Link to comment Share on other sites More sharing options...
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