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Everything posted by yorgle

  1. Let me know what you think: I used the function keys from an old 800xl keyboard and obviously a 1064 case. Turned out pretty good overall though the inside is a bit of a nightmare.
  2. I could be wrong, but I believe there is a potentiometer accessible from the bottom of the case to adjust color.
  3. Ebay. There were two of them listed: one sealed and one openned but never installed. I got the sealed one for $50.00.
  4. Does anyone here know off-hand what rams (and how many) are required to install the Rambo 256k upgrade in a 1200xl? My rambo is on the way and I'd like to order the rams so that I can get right to work installing it.
  5. Hadn't considered sio2pc but that's a great idea. I take it there are no stock 8bit database programs that could handle that many records?
  6. In order to justify the continued keeping of my collection of atari computers, I feel I should put at least one of them to work at my office. I have an index card file with about 10K of cards identifying files (the paper kind) that have been closed over the years. Each card contains a client name, a file number, a one or two word description of the type of file, and the date the file was closed. I would love to enter this information into a database using my Atari, but is this realistic given the large number of records that would be needed? Each record would only need 5-6 fields with no more than 30 characters per field. I have a copy of DataPerfect but no manual so I haven't been able to even figure out enough to try it. Any suggestions? Am I dreaming?
  7. You don't need a disk to test the keyboard. Power up without a cartridge inserted and once the Atari logo appears, press the help key. Then you can select the keyboard test to try out the keyboard. Almost certain you'll need to pull the keyboard apart to clean the contacts- they're nearly always corroded to the point where most or all of the keys won't work.\
  8. Thanks. I've already got the manual. I thought the card might be more convenient. I cant seem to open the pdf you posted. It comes up blank.
  9. Has anyone ever located a scan (or link to a scan) of the assembler editor reference card? Or does anyone here have one they would care to scan?
  10. I can still remember my first "school" computer- a Commodore PET! Of course, that was 8th grade. In high school, we had the customary "lab" full of Apples. I can still remember feeling lucky to go home and play on my older brother's C64- it seemed light years ahead of the Apples we had at school. I also remember how mad our computer teacher got when my older brother would turn in his assignments written in 6502 assembly rather than BASIC. Instead of giving credit for learning assembly, the idiot gave him D's for all those assignments. Teachers like that should be fired on the spot.
  11. Thanks, Nukey. That explains the mysterious prompt. I was typing in what I thought were level selections which is why it ran so slowly.
  12. I would if I someone will tell me how to post .atr files here.
  13. I just found what appears to be a port of Warren Robinette's 2600 "Adventure" for 8bits. It apparently was written by someone named Anthony Ramos. I can get it to run on my 1200xl but it is extremely slow. Anyone else have any knowledge about this program?
  14. Purusing the net I've found a number of instances where a VCS or 2600 is referred to as an "Atari 1600." Try googling "Atari 1600" to see what I mean. Seems odd that so many people would make the same mistake. Is there some reason (unbeknownst to me) why the term "1600" would be associated with a VCS or 2600?
  15. Thanks, Nukey. Height can be whatever it takes to get it to look right. It may be a bit late but I did one to see what I could do. He either looks like a wizard or someone sleep walking in their pajamas. Wow. I've been away from this forum for a while so I missed your reply-- looks great- if I end up using it, I'll be sure to give you credit. Thanks.
  16. Sounds good. The stepping idea will allow you to see what's left in 1536 and what's going out! It's something simple. Just one thing on you whole code. I assume there is a routine for outputting nothing - i.e. there's no cursor movement? Well, now that you mention it, I left out the "no cursor movement" code because I assumed if nothing touched the tablet LDA 626 would automatically be zero. But that's not true- it's actually 228 when untouched. I'll tinker some more with it. Thanks.
  17. 764 works in ML because I ran a similar routine using a joystick and it worked fine. I'll try the stepping idea. Maybe if I can see what values are getting sent to 764 I can find out where they are coming from. What I'm ultimately hoping to use this routine for is to create a touch tablet cursor controller (like the touchpad on a laptop) that can be run while writing basic programs.
  18. Ok, I give up. Before I pull the rest of my hair out, can anyone here point me to an assembly source listing for a routine to read two paddles as x and y coordinates so I can get some ideas? Or perhaps, better yet, look at my code and tell me if I'm at all close to what I'm trying to do? All I need to do is read the values and branch to one of four locations depending on four conditions: a) if paddle(2)<100 then branch xxxx; b) if paddle(2)>150 then branch xxxx; c) if paddle(3)<114 then branch xxxx; and d) if paddle(3)>114 then branch xxxx. (Yes, I'm playing with a touch tablet here) Here's what I've been messing with so far: 1683 lda 626 ; paddle2(x) 1686 cmp # 100 1688 bcc 1731 ; move left 1690 cmp #150 1692 bcs 1735 ; move right 1694 lda 627 ; paddle3 (y) 1697 cmp 114 ; center 1699 bcs 1723 ; move up 1701 cmp 114 ; center 1703 bcc 1727 ; move down 1705 bne 1683 ... 1723 lda # 142 ; f1 up 1725 bne 1737 1727 lda # 143 ; f2 down 1729 bne 1737 1731 lda # 134 ; f3 left 1733 bne 1737 1735 lda # 135 ; f4 right 1737 sta 764 ; poke764,keycode ... Up, Down, and Left work as expected, but for some reason, whenever the program branches to 1735, garbage values get put into 764 (causing junk to appear on the screen).
  19. For what it's worth, here's the serial number of my third 1200xl: 83S DA 49595 173. The case is yellowed a bit but other than that, it's in excellent condition.
  20. Oh yeah, how silly of me. Thanks guys.
  21. After disassembling a short joystick routine I'm confused as to something that perhaps someone here can explain. (The routine uses DATA statements to POKE opcodes and arguments into ML). In one part, 173,220 are poked into memory to read the joystick. In my dissassembly, the 173,220 disassembles to LDA 632. Why is 220 used in the DATA statement instead of 632? I'm coding on unmodded 1200xl.
  22. This is exactly the type of lifesaver that Atari should have included in the 1050 manual. Thanks for posting this, I printed your post and will keep it near at hand.
  23. Wish I would have had that about three hours ago. My biggest gripe with Atari computers is the lack of a built-in DOS.
  24. Are you calling yourself a fool for forgetting to turn on the 1050, or for typing in a large BASIC program? Both. I guess I'll just chalk this one up to typing practice...
  25. Like a fool, I began typing in a relatively long BASIC program but forgot to turn on my 1050 before booting up the 1200xl. Is there any way to save what I've got in so far or am I SOL?
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