AtariGeezer Posted September 11, 2014 Share Posted September 11, 2014 Like I posted earlier, the first sector of the file on that ATR is the only one that has a sector link, the rest of the sectors were saved as raw data. I copied the data and removed 3 bytes from the sector link data and made this: Encore2.bin The file that was saved has missing data in the last 786 bytes. Quote Link to comment Share on other sites More sharing options...
Rybags Posted September 11, 2014 Share Posted September 11, 2014 Looks like a bit more missing than that... the last 2,000 or so bytes all zeroes ~ no valid cart vectors/flags. But judging by some of the text, at least a partial successful dump. Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted September 11, 2014 Share Posted September 11, 2014 Okay, about (786 Hex / 1926 Dec) Quote Link to comment Share on other sites More sharing options...
Savetz Posted September 11, 2014 Author Share Posted September 11, 2014 I guess I will try to binary save again, onto a fresh disk image. Tomorrow. Quote Link to comment Share on other sites More sharing options...
TXG/MNX Posted September 11, 2014 Share Posted September 11, 2014 Best try a cheap univeral programmer on ebay you got them very cheap on ebay just to read the roms to a .hex file. When you removed the roms you can take a good picture of the top pcb then people can remake this :-) Only the small pcb with the connector need to be photographed aswell. Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted September 13, 2014 Share Posted September 13, 2014 (edited) I suspect that the rest of this program is on a cart, because there are references in the file to addresses from $4xxx up to $Bxxx. -K Edited September 13, 2014 by Kyle22 Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 14, 2014 Share Posted September 14, 2014 Have just had a very quick look. The fact it replaces the 3rd ram slot makes this look like a 16K cart starting at $8000. Maybe try superdos for the binary save next time. here is the last 6 bytes 80 00 04 F8 BF 08 init address of $BFF8, run address of $8000 James Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 14, 2014 Share Posted September 14, 2014 The 1st sector link appears ok. the 2nd sector link is mangled. from then on, it is very difficult to tell the sector link from code as the sector link appears to be a copy of the next 3 bytes in the file Ie the sector link wasn't put in. (looking at the raw data in the atr file with a hex editor). it would appear the this dos cannot write out roms properly. James Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 14, 2014 Share Posted September 14, 2014 after a bit of work with the ATR file, saving it as a 16K cart ROM image, it works. ENCOREfixed.rom James 2 Quote Link to comment Share on other sites More sharing options...
thorfdbg Posted September 14, 2014 Share Posted September 14, 2014 I used DOS 2.0S to do: Binary Save -> ENCORE2,4000,7FFF seemed to work but if I try to binary load the file, I get ERROR 164. You did nothing wrong. Oss did when creating Dos 2.0s. It is a known problem for Dos 2.0S when trying to save *any* data from a ROM area. Dos 2.0s does "burst transfers" when transmitting data from RAM to disk, and for that it inserts the sector link into the last three bytes of the data to be saved - *life* into to the data by first storing the data that occupies the link, then saving the data from the RAM address to disk, then restoring the data. Clearly, this fails if the data to be saved is in ROM. Thus, Dos 2.0S can only save data from RAM areas with binary-save. Dos 2.5 fixed this by using a dedicated sector buffer (so does Dos 2.++ which is part of Os++, the Atari++ Os). As said, a known bug (one of the...) of 2.0S. At least you know now that there's a rom in this area.. 1 Quote Link to comment Share on other sites More sharing options...
joeventura Posted September 14, 2014 Share Posted September 14, 2014 By the way Encore Video Productions is still in business at the same address 1 Quote Link to comment Share on other sites More sharing options...
ilaskey Posted September 14, 2014 Share Posted September 14, 2014 encore.jpg after a bit of work with the ATR file, saving it as a 16K cart ROM image, it works. ENCOREfixed.rom James Press corresponging letter? Oops. Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 14, 2014 Share Posted September 14, 2014 works for me James 1 Quote Link to comment Share on other sites More sharing options...
TXG/MNX Posted September 14, 2014 Share Posted September 14, 2014 Now we only need the schematic complete so it can preserved for the future. Quote Link to comment Share on other sites More sharing options...
Savetz Posted September 14, 2014 Author Share Posted September 14, 2014 Yay, sup8pdct is a hero. Amazing. I got it running on Atari800MacX (choose Mega Cartridge 16KB for cart type.) Quote Link to comment Share on other sites More sharing options...
Savetz Posted September 14, 2014 Author Share Posted September 14, 2014 So, is dumping the EPROMs unnecessary now? I also noticed that the program traps the System Reset key. That's interesting. Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 15, 2014 Share Posted September 15, 2014 So, is dumping the EPROMs unnecessary now? It would seam so. It appears to work for everyone except ilaskey. What i did was to load the ATR file into a hex editor (winhex) Remove from end of DUP to start. remove what appeared to be the end of dump till end of ATR. Starting at the end, found the munged sector link and removed it. did same for all the rest of the sector links (took some time to do). removed the 6 byte header and saved and tested it. I also have dissembled it to have a look. James 2 Quote Link to comment Share on other sites More sharing options...
Savetz Posted September 15, 2014 Author Share Posted September 15, 2014 I also have dissembled it to have a look. Please share. Quote Link to comment Share on other sites More sharing options...
ilaskey Posted September 15, 2014 Share Posted September 15, 2014 I never said it doesn't work for me, I just pointed out the screen shit showed a typo in the program. Quote Link to comment Share on other sites More sharing options...
ilaskey Posted September 15, 2014 Share Posted September 15, 2014 Arghh.. Let down by autocorrect. Screen shot. 1 Quote Link to comment Share on other sites More sharing options...
+Allan Posted September 15, 2014 Share Posted September 15, 2014 Arghh.. Let down by autocorrect. Screen shot. Either answer would have worked. Thanks for the laugh. Allan Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 16, 2014 Share Posted September 16, 2014 Never noticed that. Have to look now... James Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted September 16, 2014 Share Posted September 16, 2014 (edited) Here is dissemblely. Only ran it through 6502 dissembler with no other work done at this point. Am getting ready to go to frazer so won't have any more time to work on it for a while. James encore diss.txt Edited September 16, 2014 by sup8pdct 1 Quote Link to comment Share on other sites More sharing options...
joeventura Posted September 16, 2014 Share Posted September 16, 2014 It's a teleprompter Quote Link to comment Share on other sites More sharing options...
Savetz Posted September 16, 2014 Author Share Posted September 16, 2014 It's a teleprompter Nope. The author told me: It's a CCTV Hotel Information system that I originally wrote for Ensign Communications to be used in local Salt Lake City, Utah hotels. It would scroll text from the bottom to the top, and show the current date and time. It was written in 6502C assembly language and had a rudimentary text editor for entering the text that the hotel wanted to scroll. I was probably 18 or 19 years old when I created it and got about $1500 for my work. I never met the co-author which updated the software afterwards. I always wondered what became of the system. Of course, I assume that most systems were replaced by more modern systems that could show pictures and video, scroll text, etc. But, I do remember seeing this system still running in the Red Lion Hotel in downtown Salt Lake City in 1990 or 91, so it did survive for quite a while. 1 Quote Link to comment Share on other sites More sharing options...
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