Jump to content

lbaeza

Members
  • Content Count

    645
  • Joined

  • Last visited

Everything posted by lbaeza

  1. Hi And how do you convert from code to graphics? Regards
  2. Hi Here's the list with some more familiar notation: [*]R1 1.5K Ohms [*]R2 2.7K Ohms [*]R3,R4 5.6K Ohms [*]R5 39K Ohms [*]R6 500 Ohms [*]R7 22 Ohms [*]R8 100 Ohms Regards
  3. Hi I gave it a try, and it looks like it did the trick. Now it boots OK, although I have to test it. Regards
  4. Hi How can I remove the header from .CAR files so I can get plain .BIN files? .CAR files start with a header that contents the 'CART' string followed by the cart type and the cart checksum. Tried removing the first 12 bytes from the .CAR file and saved it as a .BIN, but when loading in Atari800WinPlus I get a 'Bad format' error... Any ideas? Regards
  5. ¡Feliz Navidad! ¡Y un próspero Año Nuevo!
  6. Hi I have a Centipede cart with socketed ICs. The cart has 2 chips, 8K each. I want to read the contents of both chips with an EPROM burner. I setup the EPROM burner as if I were to read the contents of a 8K EPROM (27C64). I'm clear about the Data and Address lines connections, but what about OE (Output Enable) and CE (Chip Enable)? Should I connect both lines to pin 20 (/S4, /S5) of the ROM in order to be able to read its contents? Regards PS: I read about 2600 carts using A12 as an Output Enable...
  7. Hi I remember playing Baby Pac-Man when I was a kid, the pinball had serious mechanical problems, flippers got stuck very easily. Thanks for the tips, I'll try to give it a shot soon. Regards
  8. Hi This can be acomplished by desoldering the chips in the cart, and reading each one of them with an Eprom reader/burner. For use in emulators, the contents of the chips must be merged in one file (the ROM image). Am I correct? If not, please clarify... Regards
  9. Yes indeed! Sorry for the typos. Regards
  10. Hi I found this Machine Language tutorial. Can anybody tell me this tutorial was created by the same Chris Wilkinson? It's a very easy to read tutorial, with some entertaining comments. Highly recommendable for the beginners in 6502. Regards
  11. Hi I'm having serious problems trying to play Baby Pac Man. What emulator works better when playing this game, and what emulator is not difficult to install / play? Regards
  12. What? Somebody's selling VCS boxes? I want one too, for my naked woody! Regards
  13. No idea what the Supercart and Frontrunner is...could you please provide me with more details? Regards
  14. Hi Attached you'll see some pictures from the Pill. I found these pictures on Jindroush's site. I am decided to build one of these carts. Can anybody tell me what chip does use the Pill? It looks like a 7430 to me, but I'm not completely sure... And I can't tell the colors of the resistor...so I can't guess its value in ohms... Regards
  15. Hi According to the Atari800Win's documentation, the loader that displays a K letter on the screen was programmed by Ken Siders (hence the K). Regards
  16. Hi Where are located the Cartridge Init vector and tje Cartridge Run vector? So I can locate it in my copy of Mapping the Atari... Regards
  17. Hi I have some doubts about the CARTDUMP.BAS program. Here's the snippet of code I'm trying to understand now. 50 ? :? "WHAT CARTRIDGE SLOT TO COPY ?":? ".A=CART SLOT A:B=CART SLOT B":POKE 764,255:S=0:D=1 60 IF PEEK(764)=63 THEN S=8192:GOTO 80 70 IF PEEK(764)<>21 THEN 60 80 ? :? "WHAT DOS ARE YOU USING?":? ".1=DOS 1:2=DOS 2" 90 IF PEEK(764)=30 THEN D=2:GOTO 110 100 IF PEEK(764)<>31 THEN 90 110 POKE 764,255:? ".DEVICE:FILENAME ";:INPUT A$:OPEN #1,8,0,A$:IF D=1 THEN PUT #1,132:PUT #1,9:GOTO 130 120 PUT #1,255:PUT #1,255 130 PUT #1,0:PUT #1,45:PUT #1,34:PUT #1,77 140 FOR A=32768 TO 40959:PUT #1,PEEK(A+S):NEXT A:PUT #1,169:PUT #1,160:PUT #1,133:PUT #1,106:PUT #1,32:PUT #1,246 150 PUT #1,243:PUT #1,162:PUT #1,32:PUT #1,160:PUT #1,0:PUT #1,185:PUT #1,0:PUT #1,45:PUT #1,153:PUT #1,0:PUT #1,160 160 PUT #1,200:PUT #1,208:PUT #1,247:PUT #1,238:PUT #1,13:PUT #1,77:PUT #1,238:PUT #1,16:PUT #1,77:PUT #1,202:PUT #1,208 170 PUT #1,238:PUT #1,32:PUT #1,PEEK(40958+S):PUT #1,PEEK(40959+S):PUT #1,76:PUT #1,PEEK(40954+S):PUT #1,PEEK(40955+S) 180 PUT #1,224:PUT #1,2:PUT #1,225:PUT #1,2:PUT #1,0:PUT #1,77:CLOSE #1 I understand that this portion of code is in charge of creating a valid Atari EXE file based on the contents of an Atari cartridge. I understand lines 50 to 130 are in charge of writing a valid Atari executable file header. Next, line 140 makes the actual cart dump (FOR/NEXT cycle). My question is: What are all those PUTs done after the actual cartridge dump (Lines 140 to 170)? What's the idea here? Regards
  18. Wow! That's a fast response! And that's what I was looking for! Thanks Atarimania! Where were these utilities originally available? Regards PS at Goochman: I assume this very simple program can dump only un-protected game programs, mostly very old titles from Atari, could Star Raiders be dumped with this program? Label says © 1980...
  19. Hello I'm looking for that CARTCOPY.BAS. Can anybody tell me where can I find it? Regards PS: Some info about that program can be found here.
  20. Hi Floppydisks.com sells unformatted 5.25 inch low density DS/DD disks. Regards
  21. Hi More on 2600 bankswitching schemes can be found here. Regards
  22. Hi Always researching on this same subject, I found something interesting and cheap: a 2.4GHz video RF transmitter module. I am not a TV tech guy nor a electronics expert, but I think you can plug an antenna signal to this box, select the proper channel (CH2/CH3), and get audio and video output signals (see the last page of the document). All you have to do is soldering the proper connectors and PSU to this box and you should be ready to connect your 2600 to any monitor with A/V inputs. Please somebody with more knowledge on this matter confirm this. Regards
  23. Yeah, you're right, Tim Boxell is the man behind those great illustrations. Although the robot, mouse and cat look like had nothing to do with a particular game. Regards
×
×
  • Create New...