Jump to content

Search the Community

Showing results for tags 'tms9901'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Atari Systems
    • Atari General
    • Atari 2600
    • Atari 5200
    • Atari 7800
    • Atari Lynx
    • Atari Jaguar
    • Atari VCS
    • Dedicated Systems
    • Atari 8-Bit Computers
    • Atari ST/TT/Falcon Computers
  • Classic Consoles
  • Classic Computing
  • Modern Consoles
  • Gaming General
  • Marketplace
  • Community
  • Community
  • Game Programming
  • Site
  • PC Gaming
  • The Club of Clubs's Discussion
  • I Hate Sauron's Topics
  • 1088 XEL/XLD Owners and Builders's Topics
  • Atari BBS Gurus's Community Chat
  • Atari BBS Gurus's BBS Callers
  • Atari BBS Gurus's BBS SysOps
  • Atari BBS Gurus's Resources
  • Atari Lynx Programmer Club's CC65
  • Atari Lynx Programmer Club's ASM
  • Atari Lynx Programmer Club's Lynx Programming
  • Atari Lynx Programmer Club's Music/Sound
  • Atari Lynx Programmer Club's Graphics
  • The Official AtariAge Shitpost Club's Shitty meme repository
  • The Official AtariAge Shitpost Club's Read this before you enter too deep
  • Arcade Gaming's Discussion
  • Tesla's Vehicles
  • Tesla's Solar
  • Tesla's PowerWall
  • Tesla's General
  • Harmony/Melody's CDFJ
  • Harmony/Melody's DPC+
  • Harmony/Melody's BUS
  • Harmony/Melody's General
  • ZeroPage Homebrew's Discussion
  • Furry Club's Chat/RP
  • PSPMinis.com's General PSP Minis Discussion and Questions
  • PSPMinis.com's Reviews
  • Atari Lynx 30th Birthday's 30th Birthday Programming Competition Games
  • 3D Printing Club's Chat
  • Drivers' Club's Members' Vehicles
  • Drivers' Club's Drives & Events
  • Drivers' Club's Wrenching
  • Drivers' Club's Found in the Wild
  • Drivers' Club's General Discussion
  • Dirtarians's General Discussion
  • Dirtarians's Members' Rigs
  • Dirtarians's Trail Runs & Reports
  • Dirtarians's Wrenching
  • The Green Herb's Discussions
  • Robin Gravel's new blog's My blog
  • Robin Gravel's new blog's Games released
  • Atari Video Club's Harmony Games
  • Atari Video Club's The Atari Gamer
  • Atari Video Club's Video Game Summit
  • Atari Video Club's Discsuuions
  • Star Wars - The Original Trilogy's Star Wars Talk
  • PlusCart User's Bug reports
  • PlusCart User's Discussion
  • DMGD Club's Incoming!
  • DASM's General
  • AtariVox's Topics
  • Gran Turismo's Gran Turismo
  • Gran Turismo's Misc.
  • Gran Turismo's Announcements
  • The Food Club's Food
  • The Food Club's Drinks
  • The Food Club's Read me first!
  • The (Not So) Official Arcade Archives Club's Rules (READ FIRST)
  • The (Not So) Official Arcade Archives Club's Feedback
  • The (Not So) Official Arcade Archives Club's Rumor Mill
  • The (Not So) Official Arcade Archives Club's Coming Soon
  • The (Not So) Official Arcade Archives Club's General Talk
  • The (Not So) Official Arcade Archives Club's High Score Arena
  • Adelaide South Australia Atari Chat's General Chat & Welcome
  • Adelaide South Australia Atari Chat's Meets
  • Adelaide South Australia Atari Chat's Trades & Swaps
  • KC-ACE Reboot's KC-ACE Reboot Forum
  • The Official Lost Gaming Club's Lost Gaming
  • The Official Lost Gaming Club's Undumped Games
  • The Official Lost Gaming Club's Tip Of My Tounge
  • The Official Lost Gaming Club's Lost Gaming Vault
  • The Official Lost Gaming Club's Club Info
  • GIMP Users's Discussion

Blogs

There are no results to display.

There are no results to display.

Calendars

  • AtariAge Calendar
  • The Club of Clubs's Events
  • Atari BBS Gurus's Calendar

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Website


Facebook


Twitter


Instagram


YouTube


eBay


GitHub


Custom Status


Location


Interests


Currently Playing


Playing Next

Found 2 results

  1. My girlfriend introduced me to her TI-99/4A from when she was a kid, it has been stored in her family's garage since the mid 1980's. We took it back to our house, plugged it in, and I've fallen in love with this computer. I purchased a FlashROM99, a TiPi, and a sidecar 32K expansion. The only thing I have found that is not functioning correctly with the computer is that instead of only Function + 9 resetting the computer, the keys 6,7,8,9,0 reset the computer, regardless of any other key being pressed / alpha lock on or off, joystick connected or disconnected. I have run memory test and all banks show OK. I tested the voltage from the external and internal power supply with a multimeter and all seems to be normal there. To rule out the keyboard, I disconnected the keyboard and when shorting the appropriate pins for numbers 6,7,8,9,0 the same reset behavior persists. Interestingly enough, when first powering on the computer if it's been sitting, and I open up TI BASIC, I can get those numbers to show up briefly when pressed, though a lot of other garbage (letters and numbers not pressed) appears and then the reset behavior reemerges and stays. I would be tempted to ignore this problem, however it is necessary to use parentheses in order to call on certain devices and functions when using the TIPI, and any press of the 8 key will reset the computer. I have read other posts regarding the TMS9901 being a problem for some, but when searching I can't seem to find any similar behaviors described that prompted their replacement. Has anyone else seen anything quite like this? I don't see any obvious signs of corrosion or leaking / bulging capacitors. I have replacement capacitors and TMS9901s (eBay seller recommended in these forums!) just in case but I wanted to see if anyone has any suggestions before I start replacing parts just in case it's a common problem and I can focus on the right spot first.
  2. Hi, If I put this in RXB in Classic99, I would expect it check for Keyboard L Line and Joystick Left Input. I am interested in Joystick Input in this test case. 100 CALL IO(2,16,8,A,B) 110 CALL HPUT(2,1," ",2,1,A,4,1," ",4,1,B) 120 GOTO 100 I have connected an actual Gamepad to the USB Port and have configured it in Classic99 for Joystick #1. According to Tech Data Manuals, the TMS 9901 has Address: >0008 CruBit: 4 9901: INT4 Pin: 8 Function: Keyboard L Line, Joystick Left. For me the result is that the Joystick movement and the Button has no impact on A and B values. They keep showing 226 and 255. So I wonder what am I doing wrong? Or is it a limitation of the Emulation in Classic99 or a bug in CALL IO? There are so many things to consider: Alpha Lock Bug, 99/4 vs 99/4A Keyboard, 5 Keyboard Modes, Infrared Analog Joysticks in the System Software and Documentation, Wired Joysticks. There is a SCAN Routine in GPL and one in Assembler, there are certain locations in Ram that store the XPOS and YPOS from the Joystick. ... Can anyone give me some hints here?
×
×
  • Create New...