Details being added soon…
DIJIT AVPC Release DSR
O-P-A (Oasis Pensive Abacutors) Public Release AVPC Source Code Original Coded from 1988 – 1993 Release Done on May 24th, 2014 Long Live The TI99/4A & GENEVE The Dijit Systems Advanced Video Processor Card (AVPC) was an 80 Column card that fit into the PEB. Along with a suitable RGB monitor turned the TI-99/4A console […]
TI Image Maker
TI-IMAGE-MAKER is an internal console expansion board designed to be installed in your TI99/4A with a few simple tools. TINY-TIM (as some have nick-named it) upgrades your current TMS9918 video display processor to the latest state-of-the-art & fully compatible V9958 processor. This processor is also compatible with the V9938 used in other existing upgrades for […]
Son Of a Board
This internal plug-in 2″*2″ PCBoard with a 16K EPROM and two ASICs, allows you to replace GROMs 0 & 1 in your TI console with OPA’s own fully licensed operating system featuring among other things: 100% compatible with 99/4A operating system, and expanded on from the original licensed source files from TEXAS INSTRUMENTS themselves. Updated […]
RAMBO Horizon Upgrade Kit
RAMBO is a software & hardware package specially designed for HORIZON ramdisks in your TI99/4A expansion box. The standard Horizon is designed mainly to be a ramdisk, with >4000 based RAM (TI99 DSR space), a 6K DSR for ROS_8, & 2K RAM pages to allow easy reading & writing of sectors. This is fine for […]
ROS 8.14
HORIZON ROS_8 SERIES When John Johnson released ROS_7, it soon became standard for HORIZONs, offering more features than before & was the most compatible problem-free ROS ever; but unforeseen problems and limitations were found as new devices like V9938 upgrades, hard drives, and larger Horizons appeared. A new series became imperative when OPA released RAMBO. […]
SCRABBLE 2001
Better and more fun than the original classic SCRABBLE® board game. Play against up to four opponents, or against the computer for a challenging game using the built-in 8,000+ dictionary. This program was originally going to be released in cartridge format by TEXAS INSTRUMENTS but never done so, and with the help of O.P.A. we […]
Brain Buster
Makes those brain busting puzzles containing up to 60 words in any of eight directions. Displays and prints both the answer and puzzle. Input your own words. Or use the 12,000+ dictionary. This is another unique 100% Assembly program produced back in years ’91 to ’93 and written by the 9T9 Assembly SIG which was […]
Saturday Night BINGO
Perfect for BINGO, your TI calls out the numbers, prints the cards, and checks BINGOs. Automatic or manual operation Complete with SPEECH and graphics This is one of first programs produced back in April ’91 and written by the 9T9 Assembly SIG which was part of the 9T9 Users Group, located in Toronto, Ontario, Canada […]
RAMOS
RAMOS Directory was written as an updated MENU program to replace the common used BOOT program supplied with ROS v8.14 software for the Horizon RAMDISK. But RAMOS is totally 100% new Assembly Code, produced with the help at time of the 9T9 Assembly SIG from the 9T9 Toronto Users Group, and it makes use of […]