Search the Community

Don't forget to visit Ninerpedia; our wiki about the TI-99/4A. Check here. If you are the owner of one of the programs or sites and do not want it posted, please let me know and it will be removed immediately. Also if you think a reference to an important development resource is missing, then please let me know and I'll be happy to add to the list. If you are new to the TI-99/4A or returning after a long time, then you might want to check out the TI-FAQ page here. Also make sure to visit the TI-99/4A Home Computer Book Archive by @airernie, now hosted by @acadiel. It's a great collection of excellent technical books about programming the TI-99/4A. Latest update: March 17th 2024 1. Emulators classic99 win Windows-based emulator including TI-99 ROMs under license from Texas Instruments. Debugger, memory heatmap, OS file support, support for 128K bank-switch carts, can create ROM/GROM cartridges, possibility to record AVI movies. User manual is included. Check the classic99 Updates thead for the latest news on classic99. Click here to watch Tursi's classic99 tips and tricks video tutorial. Author: @Tursi MAME win+linux Multiple system emulator that supports the TI-99/4, TI-99/4A, TI-99/8, and Geneve. Emulates more than 400 systems. Requires ROMs from the original systems. Features a powerful Debugger, most accurate emulation, support for 64K bank-switch carts / Gram Kracker / UCSD p-code expansion card. Possibility to record AVI movies. Also see the MAME section in ninerpedia. Author: @mizapf Js99'er All major browsers TI-99/4A emulator written in javascript. Has support for TMS9918A VDP & supports most of the F18A functionality, TMS9919 sound. Virtual disk drives using google drive. Some preloaded games, demos and applications included. Js99'er development thread on Atariage can be found here. Js99'er source code repository on Github can be found here. Author: @Asmusr V9t9 win+linux TI-99/4A emulator written in java. Has support for TMS9918A VDP, TMS9919 sound & TMS5220 speech. Debugger included. V9t9 also supports the UCSD P-Code system. Some of the advanced V9t9 features include: ability to save/restore emulator state, record & playback, support for V9938 VDP. Requires ROMs from the original systems. This emulator needs the Java Runtime Environment available for free at Oracle. V9t9 discussion thread can be found here. Author: @eswartz DS99/4a DS/DSI TI99/4a Emulator for the Nintendo DS/DSi. DS99/4a discussion thread can be found here. Author: @wavemotion Win994a win Windows-based emulator of the TI-99/4a Good TMS9900 cross-assembler included. No debugger. Ti994w win Windows based emulator. Offers 80 column support, SAMS card 1Mb of RAM, V9938 support, built-in debugger, ... Author: @F.G. Kaal TI-99/Sim linux Linux-based software simulation of the TI-99/4A. PC99 DOS Commercial DOS-based emulator licensed by Texas Instruments to sell ROMs. 2. Programming languages Assembly language - Software Winasm99 win Windows based TMS9900 cross assembler with GUI and ability to build 8K cartridge roms. Is part of the Win994a emulator. asm990 linux Linux based cross Assembler for the TI 990 by Dave Pitts. You'll also need lnk990 a separate linker which can be found on the same page. TIasm win TMS9900 cross assembler TIasm will build 8K console (>0000) or cartridge (>6000) rom. Is part of the old V9T9 emulator package. Source is included. Editor/Assembler IV TI-99/4A Editor/Assembler IV is a module for the TI99/4A home computer. The software this cartridge contains is the in TMS9900 assembler rewritten Editor and Assembler loader, Program loader and an implementation of my own written Linking Loader and a simple debugger. The editor and debugger are running completely in the module space (>6000 - >7FFF). The assembler is copied from EPROM to CPU RAM before it is started. Author: @F.G. Kaal XA99 - Cross Assembler 99 win XA99 (Cross Assembler 99) is a program for assembling TMS9900 assembler code on the PC. Author: @F.G. Kaal L99 - Linker 99 win L99 is a tagged object file linker by Fred Kaal for creating program files for the TI99 and Geneve home computer. Author: @F.G. Kaal xdt99 - TI 99 Cross-Development Tools win, linux, OS X The TI 99 Cross-Development Tools (xdt99) are a small suite of programs that facilitate the development of programs for the TI 99 family of home computers on modern computer systems. All programs are written in Python and thus run on any platform that Python supports, including Linux, Windows, and Mac OS X. Includes xas99 (TMS9900 cross-assembler), xga99 (GPL cross-assembler!) and some command line tools for handling disk images and nanoPEB/CF7A+ volumes. The development thread on atariage can be found here. Author: @ralphb Assembly language - Manuals Editor/Assembler reference manual PDF The official Editor/Assembler reference manual. Note that this is not a tutorial for beginners. Still, it's an essential manual when writing assembler for the TI-99/4A. The online version can be found here. The TMS9900 Cheat-Sheet PDF Very helpful reference card with opcodes, VDP tables, colors, etc. Author: @SteveB COMPUTE!'s beginner's guide to assembly language on the TI-99/4A PDF The Lottrup book. The only manual available today focusing on programming games in TMS9900 assembler. The examples in the book are for the Mini Memory line-by-line assembler which is rather limited. The manual also contains a few errors. Check here for the corrections. Nonetheless this book is a must-read for everyone seriously interested in writing assembler games for the TI-99/4A. The online version can be found here. Introduction to Assembly Language for the TI Home Computer PDF The Molesworth assembly language introduction book. Covers VDP communication, keyboard reading, file access and a lot more. The Art of Assembly series PDF The full series of articles by the late Bruce Harrison compiled as PDF. Over 600 pages, very well written and thorough. Assembly on the 99/4A WEB Excellent thread on Assembly language programming for the TI-99/4A, focussing on game loops, etc. Author: @matthew180 SPECTRA2 zip Library for programming games in TMS9900 assembly language. Has routines for handling tiles, sprites, sound & task scheduler. Documentation manual PDF is included. Author: @retroclouds BASIC - Software Cortex BASIC TI-99/4A This is a port of the 'Cortex BASIC' interpreter used with the TMS9995-based Powertran Cortex machine. It is written in pure assembly. Graphic commands, sprites and saving to disk are supported. Currently no sound and speech supported. Power BASIC instruction manual available. Playground TI-99/4A Playground is a package making it possible to create assembly language programs that run from TI BASIC on an unexpanded console using only a cassette player to load the program(!) Although primarily intended for use in TI BASIC, programs written for playground can be run from XB, saved in E/A 5 format, loaded into a supercart, and even made into an actual cartridge. The manual describes in detail the differences in style necessary when programming for an environment that runs in only 256 bytes of memory. There is a library of subroutines for printing text, printing a number, shifting blocks in VDP, generating random numbers, using the line editor from BASIC, HCHAR, VCHAR,GPLLNK, a bit reversal routine, and a fast scroll routine. Source code is included for three different programs that should help you get started. Check here for the development thread on Atariage. Check this related thread for some clever work based on Playground. Author: @senior_falcon Extended BASIC - Software Extended Basic Game Developers Package "JUWEL4" TI-99/4A This package consists of two applications that make it possible to produce arcade quality games using Extended BASIC. Although they are designed to complement each other, each is a stand alone utility. Also included is XB 2.9 G.E.M. which offers greatly enhanced graphics in Extended BASIC. The package has been extensively updated to be fast, versatile, and simple to use. It is meant to be used with the Classic99 emulator, but the programs it creates are fully compatible with a real TI99, requiring nothing more than XB, 32K and a disk drive. Purists can use Juwel994 which has modified prompts to work with a real TI99. There is an option to use the older, more compact TI BASIC only runtime routines. This replaces for the older "Harry Wilhelm's BASIC COMPILER" and as a bonus, it's much easier and faster to use. Author: @senior_falcon 1) XB256 XB256 lets you toggle between two independent screens as desired. Screen2 lets you define all 256 characters and still have up to 28 double sized sprites using the character definitions available to Screen1. Scrolling routines let you scroll characters left, right, up, or down or scroll using single pixels. There is a text crawl that gives an effect similar to the STAR WARS title screen. You can highlight text, set the sprite early clock, print in any direction on the screen using 32 columns, read/write to VDP ram, write compressed strings or sound tables to VDP ram, play a sound list, and catalog a disk. A utility lets you save selected areas of VDP memory as compressed strings that cn be merged with your program. With this, character definitions, sound tables, screen images, etc. can be saved in a more compact form that can be loaded virtually instantaneously, even in XB There are two utilities that can convert the CALL SOUNDs in an XB program into a sound table containing music and sound effects. Sound tables can be loaded directly into VDP memory and played automatically while your XB program does other things. Also, a second player can play a different sound list simultaneously with the first, so you can have music playing with sound effects on top of the background music. 2) XB COMPILER COMPILER lets you compile an XB program into an equivalent assembly language program that will run about 30 times faster. All the XB256 subprograms are supported by the compiler and in general, all the major features of XB are supported, including XB style IF/THEN/ELSE and named subprograms. Programs using assembly support routines such as The Missing Link, T40XB and T80 XB programs can now be compiled. About the only unsupported XB features are DEF and the trig functions. There are provisions to save programs in EA5 format, as an XB loader, as a grom cartridge, or as a rom cartridge. T80XB TI-99/4A T80XB is a collection of assembly language subroutines that give the Extended BASIC programmer easy access to the 80 column screen mode offered by the F18A and other 80 column upgrades. Lets you select from two independent screens. G32 is the default screen when a program starts running.. This is the 32 column graphics mode screen normally used by Extended BASIC. It is accessed using the usual XB graphics statements. T80 is the 80 column text screen which offers 24 rows of 80 columns.. You can toggle between the two screens as desired, preserving the graphics on each screen. When using the T80 screen there are assembly equivalents that replace PRINT, CLEAR, COLOR, INPUT, CHAR, HCHAR, VCHAR plus routines that will scroll the screen and invert text on the screen. Author: @senior_falcon XB 2.9 G.E.M. (Graphics Enhancement Module)TI-99/4A XB 2.9 G.E.M. is a greatly expanded version of Tony Knerr's XB 2.7 The cartridge contains utilities that enhance Extended BASIC's graphics capabilities. XB256, T40XB, T80XB, THE MISSING LINE, and THE MISSING LINK GRAPHICS ADVENTURE are all available from the main menu or from a running program. 60 different fonts can be loaded from the cartridge or loaded from or saved to disk. Programs can be chained together and when the new program runs it will retain all numeric and string variables. This allows very large programs with the size limited only by disk capacity A powerful new editor is included that permits full screen editing in 40 and 80 columns. You can save or load programs in either IV254 format or DV80 format, and windows text if you are using an emulator. RXB 2024B TI-99/4A Rich Extended Basic (RXB) is an updated version of TI Extended Basic. Most bugs in XB have been fixed in RXB and GKXB is in the main core of RXB. RXB has features no other XB has such as batch processing, SAMS support, hard drive access or updated CALL routines. The below RXB tutorials on Youtube give a good overview of RXB's power: RXB 2020 Release video on features video RXB memory manager routines in RXB 2020 video RXB 2021 demo 1 video RXB 2021 demo 2 video RXB 2021 demo 3 video RXB 2021 demo 6 video RXB 2021 demo 7 video RXB 2021 demo 8 video RXB 2022 demo 9 video RXB 2022 demo 10 video RXB 2022 demo 11 video RXB 2022 demo 12 video Full documentation, examples, links to YouTube tutorials and GPL source code are all included in the ZIP package. Cartridge image for classic99 emulator also included. Requires a GRAM device such as a GRAM Kracker or finalGROM99 cartridge for running RXB on the TI-99/4A. Author: @RXB RXB 2024B.zip RXB 2023.zip RXB 2022.zip RXB 2021.zip RXB2020E.zip TiCodEd Windows + MAC OSX Modern, structured Extended Basic. Integrated PC editor. Development thread on Atariage. Author: @SteveB My Little Compiler (MLC) TI-99/4A Library for using assembler-like language & routines from Extended Basic. Great for putting more power in Extended Basic programs. Now includes a precompiler for high-level language syntax. Demo Pong game and documentation included. The MLC development thread can be found here. Check out the video by @rocky007 on his MLC based TI-99/4A port of Kaboom! Author: @moulinaie The Missing Link 2.0 (TML) TI-99/4A The zip archive contains "The Missing Link 2.0" and its documentation. This was published by Texaments in 1990. It gives the XB programmer easy access to the bit mapped features of the 9918 VDP. Full color cartesian graphics, turtle graphics, sprite graphics (32 sprites with auto motion) are supported. Text can be displayed on screen with fonts having sizes ranging from 4x6 pixels to 8x8 pixels. The manual is updated with many previously undocumented features. A tutorial called "Potatohead" is included. There is a loader that embeds A/L programs in high memory - they can be saved as an XB program and run directly out of high memory. Author: @senior_falcon TidBiT - BASIC/XB Translator win, linux, OS X A translator program that reads a program written in a custom, structured form of BASIC and translates it to a BASIC / Extended BASIC program. PHP required when doing a local installation. Check here for the latest revision, installation instructions included. Author: @matthew180 Kull KXBII Extensions TI-99/4A Kull Extended BASIC II programming package. High resolution graphics and clock support in Extended Basic. Documentation by @hloberg. Extended BASIC - Manuals COMPUTE!'s Programmer's Reference Guide to the TI-99/4A PDF TI-Basic programming manual touching graphics and sound. COMPUTE!'s TI Collection volume One PDF The online version can be found here. Best of TI-Basic programming by C. Regena Texas Instruments TI-99/4A user reference guide PDF The official user reference guide with details how to setup and connect your TI-99/4A. Includes an introduction on the TI-BASIC programming language. Extended Basic reference manual PDF The official extended basic manual, explaining the 40 new or expanded commands, sprites, etc. Check here for the online version with command lookup functionality. MG Night Mission PDF Advanced tutorial on how to program an arcade game in Extended Basic. MG Smart Programming Guide for Sprites PDF Advanced tutorial on how to efficiently use sprites in Extended Basic. C - Software C99 v4 TI-99/4A C99 is a small C compiler for the TI-99/4A written by the famous C. Pulley. Documentation included. C99C - C99 cross compiler and optimizers win C99C is the enhanced PC version of the C99 compiler for the TI99/4A home computer. Also included are multiple optimizers for compacting the generated assembly source (C Optimizer, Function Call Optimizer, ...) Author: @F.G. Kaal GNU C Compiler (GCC) win + linux + osx GCC for the TMS9900 allows you to cross-compile C programs on your PC (Linux, OSX or Windows) for the TI. Insomnia's release contains a set of patches against GCC 4.4. Just check out the code from the GCC project, apply the patches and build according to the build instructions for your platform and you're on your way to write programs and games for the TI in a high level language that rival the speed of assembly. And if you need just that little bit extra in terms of speed, you can always inline TMS9900 assembly for the critical sections of your code and compile everything with the same toolchain. For access to the VDP, the SN76489, etc... you can use Tursi's ti99 library, which you can find in the GCC thread. Hop over to the INSOMNIA LABS blog for background information on this port. Check the "Setting up the GCC compiler for the TI-99/4A" video by @Tursi for detailed steps on how to build and install GCC on your Windows PC. You can now download the cygwin binary port of the older TI GCC 1.10 for Windows here. (Thanks @lucien2). Author: @insomnia Fortran - Software 99-9640 Fortran TI-99/4A & Geneve The zip archive contains LGMA Products' FORTRAN v4.4 in both a version for the TI-99/4A and the Geneve 9640 computer. Documentation in PDF format included. The discussion thread on Atariage can be found here. Forth - Software Turboforth TI-99/4A A brand new implementation of the Forth langugage for the TI-99/4A. The Forth system itself is written in assembler and is optimized for speed. It runs from the cartridge space so there's plenty of space for your program in the 32K memory expansion. Check TurboForth.net the companion web site for the TurboForth system. Click here for seeing some Turboforth video tutorials. Author: @Willsy TI Forth Instruction Manual "2nd Edition 2013" PDF 2012 enhanced version of the original TI Forth Instruction Manual in PDF format by @Lee Stewart. Look here for details on manual improvements, etc. The updated TI-Forth system disk can be found here. Author: @Lee Stewart fbForth TI Forth with File-based Block I/O zip fbForth uses Level 3 file I/O for I/O of Forth blocks. It also implements 80-column text mode if you have a system with that facility. fbForth 32KB 2.0.X ROM cartridge available. Check the fbForth website Author: @Lee Stewart CAMEL99 V2 Forth TI-99/4A Multi-tasking Forth for the TI-99/4a. CAMEL99 Forth has been built as an educational tool for those who are interested in how you could cross-compile Forth to a different CPU using an existing Forth system. Camel99 Forth Development thread on Atariage can be found here. Author: @TheBF GPL - Manuals/Tutorials GPL Programmers Guide PDF The original GPL programming reference manual from Texas Instruments. Covers all opcodes and advanced stuff like coincidence detection, I/O routines, etc. The Graphics Programming Language (GPL) PDF GPL manual with instruction syntax as accepted by the RAG Software GPL Macro Assembler. Edited by @Lee Stewart TI-Intern PDF Details on "Monitor", the OS of the TI-99/4A. Disassembly of console ROM/GROMS and GPL interpreter. Has details on interrupt routine, utility subprograms, basic interpreter, etc. GPL HOW 2 Series video A complete series on how to program GPL (Graphics Progroamming Language) on the TI-99/4A. Each tutorial has its own support package with example code, GPL assembler, etc. Video tutorials done by Rich, the programmer of Rich Extended Basic. Author: @RXB GPLHOW2A - Introduction video / zip GPLHOW2B - Sprite demo video / zip GPLHOW2C - How to make a Screen Editor like TI Writer or Editor Assembler video / zip GPLHOW2D - Editor Assembler TI BASIC support.video / zip GPLHOW2E - DMII cartridge upgrades and how GPL works video / zip GPLHOW2F - TI Basic to GPL. Converting a TI Basic program to GPL video / zip GPLHOW2G - TI Basic CALL SOUND to GPL video / zip GPLHOW2H - Simultaneous sound lists and interrupt timer in GPL video / zip GPLHOW2I - XB2GPL demo of a XB game Baloons converted into a GPL program video / zip GPLHOW2J - Update to GPLHOW2I and adds a automatic music to the game from the last demo video / zip GPLHOW2K - How to make XB Program Image files into I/V 254 files video / zip LOGO - Manuals TI-LOGO programming manual PDF The official TI-LOGO programming manual. The online version can be found here. Pascal - Software Turbo Pasc'99 TI-99/4A The zip archive has the patched version of Wiposofts Turbo Pasc'99 which you can run on your favorite emulator or on the TI-99/4A itself. While Turbo Pasc'99 is not as complete an implementation of Pascal as the UCSD Pascal system, it does have the advantage of not requiring any special hardware other than 32K RAM and a disk drive, and will likely meet the programming needs of most TIers. Check here for an english translation of the german documentation. This version is started by running the Editor Assembler #EA5 program image DSK1.TP99A Pascal - Manuals UCSD Pascal ZIP + PDF The official UCSD Pascal programming manuals and disks. The zip file contains all manuals in PDF format. Here are the PDF manuals for online viewing: Compiler, Editor, Filer, Utilities, Assembler, Linker, p-code card The UCSD system disk images in v9t9/MESS format can be found here. Note that you need the UCSD P-code expansion card for running UCSD Pascal on the TI-99/4A. Thierry Nouspikel has lots of information on the technical implementation of UCSD Pascal on the TI-99/4A. Check here for details on the P-Code card and here for details on the P-Code system software. 3. Technical Documentation Hardware TMS9900 Microprocessor Data Manual PDF Data Manual on the TMS9900 16-bit processor. The TMS9900 is the CPU used in the Texas Instruments TI-99/4A Home Computer. Contains instruction execution times, opcode size, etc. TMS9901 Programmable Systems Interface Data Manual PDF Data Manual for the TMS9901, Interrupt and I/O interface controller VDP Programmer's guide PDF The official programmer'a guide for the TMS9918A and its variants. The 9918A is the Video Display Processor chip used in the TI-99/4A and several other home computers + game consoles of that era. SN76489 sound chip datasheet PDF Data sheet for the SN76489 sound generator. The TMS9919 in the TI-99/4A is close to being identical with the SN76489. SN76489AN Sound Generator TMS5220 Speech Synthesizer Data manual PDF Data manual for the TMS5220 chip used in the TI-99/4A speech synthesizer device. Interface standard & Design Guide for TI 99/4A peripherals PDF The purpose of this manual was to consolidate all information available in the public domain on the design and development of peripherals for the TI 99/4A computer into one reference. Also covers the software aspects such as DSR architecture, PABs, etc. ROM Command Module Guide 2.0 PDF This manual provides a complete description of how Assembly Language User Programs need to be written so that the object code can be downloaded into (EP)ROM's which canthen be used in the "(EP)ROM module", a module designed to be used with the TI 99/4A Home Computer. TI Hardware Manual txt Compilation of valuable hardware & programming info on Myarc memory cards, Disk Controllers, Hard Drives, CPU identification (TMS9900, TMS9995, TMS99000) in assembly language, etc. DSR (Device Service Routine) / Disk & File Management Device Service Routine Specification for the TI-99/4(A) Personal Computer PDF Functional Specification for the 99/4 Disk Peripheral PDF Software Specification for the 99/4 Disk Peripheral PDF GPL Interface Specification for the 99/4 Disk Peripheral PDF File Management Specification for the TI-99/4 Home Computer PDF File Operations in assembly language 4. Homebrew Hardware Graphics & Sound F18A Video Display Processor The F18A is a FPGA based hardware and pin compatible replacement for the TMS9918A/TMS9928/TMS9929 VDP's (Video Display Processor). Besides VGA output it offers enhanced functionalities such as 80-column mode, additional video resolutions, hardware register scrolling, an embedded TMS9900 compatible GPU, etc. The development thread on Atariage, which includes the F18A programming documentation can be found here. The store on code|hack|create has the details on F18A availability, costs, etc. Author: @matthew180 SID Master 99 sound synthesizer card The SID Master 99 is a new sound synthesizer expansion card for the Peripheral Expansion Box. It integrates the famous MOS 6581 or 8580 SID chip (as used in the Commodore 64 home computer). SIDPLAY99 sound player software available for use with this expansion card. Author: @marc.hull Homebrew cartridge boards There are a number of Homebrew cartridge boards available to the users of the TI-99/4A now. Each has its own advantages and disadvantages from a usability standpoint, and some earlier types are only available by having your own made. To read the PCB layout files mentioned below, you need the ExpressPCB software which is available for free. Check here. The files are currently not released in Gerber/Excellon format, but can be converted to it using the RobotRoom Copper Connection software, available here. Note that to convert files to Gerber format you have to have the licensed version of the software ($50). 16K board PCB file The first of the new cartridge boards is the 16K board designed by @acadiel and @Stuart. This board used an inverted output from a 74LS379 to select between two 8K banks at >6000 in the TI memory map. The banks are selected by writing to >6000. This board allows most of the third-party cartridges designed for the 99/4A to be replicated. Further details on this board (components, EPROMS, software, etc.) can be found in: 16k_board_details.rtf FlashROM 99 PCB file, firmware source code The TI 99/4A Flash ROM Cartridge, or FlashROM 99 for short, is a cartridge for the TI 99/4A home computer that allows for running ROM cartridge images stored on an SD card. The FlashROM 99 supports ROM-only images of up to 32K that use the write-to->60xx bank switching scheme. It will not work with programs using GROMs or CRU-based bank switching. The cartridge does not require the Peripheral Expansion Box and runs on both PAL and NTSC consoles. Discussion thread on Atariage can be found here. Author: @ralphb FinalGROM99 PCB file, firmware source code The TI 99/4A FinalGROM Cartridge, or FinalGROM 99 for short, is a cartridge for the TI 99/4A home computer that allows you to run ROM and GROM cartridge images from an SD card. It succeeds the FlashROM 99 released in 2016. The FinalGROM 99 supports ROM images, GROM images, and mixed images of up to 1 MB in size that use the write-to-ROM bank switching scheme. The cartridge does not require the Peripheral Expansion Box and runs on both PAL and NTSC consoles, including modified consoles with an F18A. It will also run on v2.2 consoles and enables those to run ROM-only programs. The development thread on Atariage can be found here. Author: @ralphb UberGROM code, binary, image This cartridge board significantly expands the capabilities of the TI cartridge port by providing up to 512K of ROM memory using a non-inverted 8K bank-switching scheme. This is the opposite of the scheme originally found on the 16K and 64K cartridge boards built by Jon Guidry, as that method could not extend the banking beyond the 128K maximum imposed by the 74LS379 design. The Guidry boards using the 74LS379 do not impose an expected initialization state on the latch outputs, thus requiring header files in each bank to ensure cartridge initialization. The 512K of bank-switched ROM on the the new board uses the 74LS378 and does not require the bank inversion used in prior versions of Jon’s cartridge board, but it still requires the header files in each bank to ensure stable startup. Finally, the board includes a socket for an ATMega 1284 (or 1284P) AVR. Tursi provided code to allow the AVR to be used as 128K of GROM memory space, using up to 16 GROM bases. The combination of these feature changes now allows the board to be used to replicate older ROM/GROM cartridges using 6K or 8K GROMs, with the exception of MBX cartridges, as those would require some additional logic to add 1K of RAM to the board. It is now possible to play some of the unreleased TI titles from a cartridge, as they were originally designed to be used, instead of from disk. Authors: @Ksarul @Tursi @acadiel 5. Utilities (file transfer, graphics, sound, ...) File Transfer TIImageTool win + linux TIImageTool is a tool that allows you to open disk image files as used with many emulators, and to work on them with common disk operations (like cut/copy/paste of files). It is particularly tailored for use with MESS but can also be used with other emulators. Has support for v9t9 format, PC99 format, CHD format, working with files & directories, Archiver support (can process Archiver files on the images), ... This utility needs the Java Runtime Environment available for free at Oracle. Supports Cf7a+ card images. Author: @mizapf TI99Dir win TI99 filemanager for windows. Great for transferring disk images to the TI-99/4A. Supports Cf7a+ cards and Cf7a+ card images. Author: @F.G. Kaal TiDisk-Manager OS X The TiDisk-Manager is a disk tool for disk images from floppy disks used by a TI-99/4A home computer. You will need an Apple Macintosh or Hackintosh running with Mac OS X 10.9 or newer. Has many features including file preview, export, etc. and even an interactive editor to disassemble program files and create good readable source code. The development thread on atariage can be found here Author: @HackMac Cf2k - Compact Flash 2000 TI-99/4A Cf2k (Compact Flash 2000) is a file manager for the TI99/4a with a CF7A+ compact flash adapter. With CF2k it is possible to protect/unprotect files, rename files/volumes, format volume, mount volume, copy/move/delete files, execute program files, ... Supports Cf7a+ cards. Author: @F.G. Kaal Graphics Convert9918 win Windows program for converting images into TMS9918A Graphics II (bitmap) mode. Output is in TI-Artist format or raw image/pattern dump. The article Modern Graphics on the 9918APDF gives an interesting overview on the techniques used in Convert9918. Author: @Tursi GraphiCV win/linux/osx Sprite Editor written in java. Draw your sprites on the PC and export them for use in Extended Basic and Assembler. Also supports export to Colecovision C format. Work with multiple sprite "layers" for creating multi-colored sprites. Click here for the GraphiCV development thread on atariage. Source code is also available at github. Check here. This utility needs the Java Runtime Environment available for free at Oracle. Author: @unhuman Magellan win/linux/osx TI-99/4A map editor written in java. This is the latest, updated, unofficial version. Draw your maps/screens on the PC and export them for use in Extended Basic and Assembler. Has a rich feature set: Import character set from '.PNG' or '.GIF' file, copy & paste, drawing functions, support for half-bitmap mode, Export in XB display merge format, etc. Possibility to export maps as data statements for Extended Basic and Assembler, binary export also possible. Click here for the Magellan development thread on Atariage This utility needs the Java Runtime Environment available for free at Oracle. Author: @The Codex Sprite Editor TI-99/4A TI-99/4A sprite editor written in C99. Runs from Editor/Assembler #EA5. Draw your sprites in an emulator or on the TI-99/4A machine. The zip file contains both the files for use in emulator and a TI disk image for easy transfer to the TI-99/4A. README file with detailed instructions included. You can see the Sprite Editor at work building some sprites: Jet Set Willyvideo and Parsecvideo. Author: @Willsy Sound VGM player Compresses VGM files into a format that can be played back on the TI using the included player from C and assembly. Author: @Tursi Mod2PSG2 Fully featured PC tracker for arranging music for the SN76489 and compatible sound chips. Can export to VGM and other formats. Author: KonTechs/Martin Sound List Ripper PC tool for ripping and playing back sound lists from TI files. Supports basic editing of sounds lists. Author: @Asmusr Sound list player Plays back sound lists from XB and assembly. Author: @matthew180 Advanced Sound List Player TI tools for editing and playing back advanced sounds lists. Author: @marc.hull Speech QBOX Pro win QBOX Pro is the windows software that converts WAV files to LPC speech data for playback on the TI-99/4A speech synsthesizer. This is a 16bit windows application but it still runs in Windows 2000/XP/Vista. It requires the BWCC.DLL library. BlueWizard osx LPC analysis tool for the Texas Instruments TMS5220 chip. Replacement for QBOX Pro. Has very good speech quality. Source code and pre-built install image for OS X can be found on gitHub here. Discussion thread on Atariage available here. Author: @patrick99e99 Python Wizard unix/win This project is a python port (command line version and GUI) of the great macOS tool BlueWizard. It is intended to convert (voice) audio streams into LPC bitstreams used in the TMS 5220 chip or e.g. in the Arduino library Talkie. Now you can generate your own LPC streams and make your chips say the things you want them to. Author: @deladriere TI Synth Editor win TI LPC speech pattern exploration and editing app in the spirit of the venerable Speecoder. Watch the "How To" video to create custom speech synth here Author: @pixelpedant Editors Notepad++ win Notepad++ is a free source code editor that supports several languages. Runs in Windows environment. Notepad++ syntax highlighting file win Syntax highlighting file for Assembler and Extended Basic to be used with the Notepad++ text editor. 6. Tutorials Assembly language How to implement an assembly sound player for XB web Very well written tutorial on how to implement an assembly sound player for Extended Basic. It covers the tools needed and steps involved. Commented assembly source code Not a tutorial in the classical sense, but the commented source codes of the below games should help you get the idea. Pitfall! source code ZIP Munchman source code PDF TI invaders source code PDF TI Invaders source code TXT PARSEC source code PDF Moon Mine source code PDF Hopper source code PDF TI-99/4A Operating System source code repo on GitHub The thread "The TI-99/4A Operating System" is an ongoing community project for commenting the source code of the TI-99/4A and allowing it to be assembled with todays' assemblers. TMS9918/TMS9928 Video Display Processor TMS9918/9928 video modes video Video tutorial explaining the supported graphic modes of the video processor used in the TI-99/4A. TMS9918/TMS9928 Sprites and Characters video Video tutorial about the use of sprites and character patterns in the different video modes. TMS9918/TMS9928 How to create a bitmap title screens video Video tutorial on how to create a bitmap screen for games. Speech Synthesizer Convert WAV file for playback using speech synthesizer video Video tutorial on how to use QBOX Pro to convert a 8kHz mono WAV file to LPC speech data for playback on the TI-99/4A with the speech synthesizer device. It shows how to embed the LPC byte stream into your own assembly language program. Compilers The Wilhelm Basic compiler video Video tutorial on how to compile a basic program to assembly language. Author: @Opry99er File transfer (TI99->PC) RS232 File Transfer video Video tutorial on file transfer from the TI-99/4A to the PC using a serial connection cable. Author: @Opry99er (PC->TI99) RS232 File Transfer VIEW PART 1 / VIEW PART 2 video Video tutorial split in 2 parts dealing with file transfer from the PC to the TI-99/4A using a serial connection cable. In detail: DL a game from TI Gameshelf, Use ARC303G to unarchive it, Test in Classic99, Transfer using QModem and MFM, Running game on TI. Author: @Opry99er 7. TI-99/4A related websites TI-99/4A @ wikipedia Introduction and basics of Texas Instruments TI-99/4A Home Computer. ninerpedia Wiki with information on MESS and its multicart format (RPK). Home of the TI-FAQ. Thierry Nouspikel's Tech Pages Probably the best TI hardware and software tech page. It has a wealth of technical details on all things TI-99/4A. This includes GPL, GROM, keyboard scanning, speech, etc. You can also download the full site as a zip file for offline viewing. Mainbyte's home of the TI-99/4A Very good tech site with many detailed pictures and reference area. Includes various projects for upgrading your TI-99/4A, e.g. build a supercart cartridge. Jon's hexbus page Several hardware projects including pictures. Home of the 64K bank-switched cartridge project. Author: @acadiel [code|Hack|Create] New website run by Matthew of the Atariage group. The site covers many new hardware projects as the F18A FPGA based VDP and Bank-switch mini 256K. There's also a store where you can buy cartridge PCB's and other funky stuff. Author: @matthew180 The nanoPEB & CF7+ Website Official website archived by internet archive wayback machine. Has the documentation, tools and some source code of the popular TI-99/4A Compact Flash device. Stuart's TI-99/4A Computer Home of Cortex BASIC port and lots of other projects for the TI-99/4A. TurboForth.net TurboForth.net is the companion web site for the TurboForth system written in TMS9900 Assembly Language by Mark Wills for the Texas Instruments TI-99/4A computer. TI projects page Several hardware and software projects for the TI-99/4A. Home of TI-99Dir, TI99HDX and several other must-see projects. Author: @F.G. Kaal TI-99/4A Home Computer Book Archive Site where you find many books about the TI-99/4A not seen elsewhere, all collected by @airernie and now hosted by @acadiel Author: @airernie TI-99/4A Game Shelf Provides a gallery of interesting games with images of the opening screen as well as an in-play snapshot, along with a brief review tested on a real TI 99/4A system. Hardware requirements are also listed. Has many good Extended Basic games. Author: @Vorticon WHTech WHTech is the primary archive - though it's a bit overwhelming. But pretty much all software, hardware docs, etc, are available there. 99er.net Site with useful file archive and forum functionality. comp.sys.ti Covers all TI devices, including calculators.

Geeks-Line Publishing recently launched their Kickstarter for a four-volume history book on the PS2 that will be released Winter of 2024. Each volume will have specific dust jacket artwork: PS2 Anthology Vol.1 - God of War Dust Cover PS2 Anthology. Vol.2 - Okami Dust Cover PS2 Anthology. Vol.3 - Prince of Persia Dust Cover PS2 Anthology. Vol.4 - FFX Dust Cover Geeks-Line books sell out pretty quickly, so it might be a good idea to pledge/order the PS2 Anthology Book set priced at $164 which gives you 10% off compared to buying the books separately. Learn more here at this link: https://www.kickstarter.com/projects/pcengineanthology/playstation-2-anthology

Why 'bear' some 'buddies' price? Let's all chip in and share what we've got... FOR FREE! I'll start it off... This file has your standard strip, TI-Writer, Multiplan and one you all probably do not have, Video Chess! So, what do you all have? Strips001.pdf

Hi - (12/18/2022 Replaced with updated pictures) I have a number of Atari 8bit and a few Atari ST books that I have duplicates of. Please send me a PM if you see something you want. My prices are the best around. Many books are $10 or less with a few $15 or higher. Thanks for looking!! A few Atari ST books. Not pictured but I have the Atari Logo books available too. Not pictured however I have a nice photocopy of De Re Atari in a 3-Ring binder. Also not pictured but I have a very nice copy of of the original BASIC Reference Manual that came with the 400/800.

Hi - I have 9 books in the Abacus Atari ST series and one COMPUTE! book. All are in good condition with no smoke or mold/mildew odor. Many people are collecting this Abacus series. This is your chance to get a jumpstart on the collection and save a bundle on shipping. I would like to sell as a lot but will consider all offers. I think each Abacus book is worth $25 or more. Note there are two of the book #2. All shipping via USPS Media Mail shipping only to the U.S. Buyer pays all shipping. PayPal I will gladly send or add additional pictures. Thanks for looking!!

After 2 long years my Amiga CD32 Digital Encyclopedia (found here https://screenpedia.online/?product=album ) is finally finished! I would like to thank everybody that helped along the way whether it was answering one of my hundreds of questions or simply lending support. As a thankyou to the Amiga community I have added a discount code "amigalove" that can be added at the checkout to save around 28% off the purchase. Lastly for those that purchase the book and find any mistakes or missing facts about any of the games I will fix them and release an updated version at no extra charge for life. I hope you enjoy the Amiga CD32 Digital Encyclopedia!

I have a bunch of video game systems and utilize an Everdrive for most of them. Since the cartridge just displays a list of games, I like to pull out my books (such as the Ultimate Guide to the NES), or whatever book goes with the system I'm playing, and go through the games/reviews to pick one out to play. I have the Harmony cart for the Atari and wondered if anyone can recommend a book for Atari 2600 games that includes descriptions, screenshots and reviews? I have this book, but would need to spend $30 bucks each to get the other 5 volumes (which I may plug away at over time). If you can recommend any others I'd appreciate it. I prefer physical copies vs ebooks.

I have several manuals and books for sales. Please PM me if interested and we can 'talk price'. Thanks!!

I don't know how much cross-over there is in this TI-99/4a sub-group with the Atari 8-bit home computer sub-forum, but I presume since this forum is hosted in the AtariAge forums that there must be at least a few people who collect for both computers. Right now, I have a six books for books for the TI-99/4a computer. They're the one's in my first TI video: https://www.youtube.com/watch?v=eoBjUDMar84 I'm looking to expand the TI books that I have currently in trade for spare Atari books that I have in my personal collection. Is anyone interested in doing trading books with me? If so, then I'd like to use this thread to post the books I have, and others can post the books that they have for trade. If a few people like this idea, then over the next few days I'll make a list of TI books that I want and a list, maybe with pictures, of the Atari books that I have for trade. So... is anyone interested in trading their spare or unwanted TI books with me? Adam P.S. Oh, and if you have no interest in Atari books, then you can always give your spare TI books to me...

In times like these it is becoming more important, urgent, even vital, that when going about your business and engaging in daily activities and hobbies such as our favorite pastime like vintage computing, that you keep an eye out for a complete set of manuals for your system. Including reference cards. They really add to the nostalgia factor and may even have information you don't know about. If you're an expert with your favorite machine and have no use for manuals get them anyways. They look good on a shelf and add a level of seriousness to your setup. And they're not getting any cheaper, but there's there's still time! Reading a vintage manual that you read decades ago can take you back just the same as playing with the actual hardware. The manuals and books add flavor and "detail" to the experience. I would even go as far to say they're more important than the boxes if you're messing with computers. The manuals and 3rd party books help shape today's experience in the same form as yesteryear's. They impart a sense of what was going on back then. What was important back then. It can be a real joy to work through the programming examples that illustrate various aspects of the hardware. And this applies even more so to 3rd party books - because authors not directly associated with the computer manufacturer had other goals in mind. Think experimentation and real working practical examples and projects. And different perspectives not shaped by corporate culture. Artful expressions and all that. And consider a folder of text files and .PDFs almost as valuable. You may be able to find a ton of stuff online today, it won't be there forever. Stuff goes missing on the internet all the time. Especially the suddenly important stuff that you just started looking for. While book and manual prices have remained cheap for the past 20 or so years, they are beginning to rise in price. It isn't too late to fill that bookshelf with goodies!

I think some of y'all might be interested in this book, Retrogame Archeology, by John Aycock, about the early days of home video game development. It's not just a history, though; he goes into the programming and machine-level details and tricks early programmers used, even down to how to do copy protection on cassette tapes. He covers several topics that developers here would appreciate—dealing with limited memory and slow I/O, generating procedures, and so on. It's largely concerned with 8-bit machines, but he does have some examples from the TI. It's from Springer, which is an academic publisher, and so it's...well, it's pricey. $85 just for the e-book version! I'm fortunate to have access to it as faculty on my campus.

If I am not mistaken, Ernie has stated that he wants to pass on the archive. Since yesterday I get a "pageok" when I visit the site. Anyone knows whats happening?

I was initially going to start to learn Assembly, to program with my 800XL. But a lot of the books I see on 6502 for Atari have BASIC mixed into them, and also suggest that you know Atari BASIC to be able to follow along with it. More often than not, reading through them, I don't know enough about BASIC to know what they are talking about. So I decided I would take a step back, and try to learn Atari BASIC first. But there are so.....many.....books..... on this subject that I don't know where to start. I'd like to simply start from the beginning, learning as if I knew nothing of BASIC(even though I know little tidbits of it - enough to make small text-based programs, but nothing fancy with graphics or sound). So I am wondering if anyone has any recommendations on what book I should start with to learn Atari BASIC. And then once I learn most or all I can of BASIC, where to go from there to begin to learn 6502 Assembly for the Atari(since, there's almost as many books about this as there are for learning BASIC). EDIT: Just for clarification, I want to be able to use my 800XL for these things. I don't have any access to the new BASICs like Turbo BASIC XL, or FastBasic, or anything like that. For now all I have is the Atari BASIC Rev. B(will soon be C) that's built into my machine. So that's what recommendations should be built upon.

I am pleased to announce that I have published my book Atari Projects: 50 Fun Projects for Your 8-Bit Home Computer. The goal of this book is to provide a series of fun projects to make it easy for beginners and experts alike to get the most out of their Atari 8-bit retro-computing hobby. Most projects are designed to be completed in less than an hour, and are ideal for the weekend hobbyist. The format of each project is a how-to that lists the pre-requisites, the time estimate for completion, some introductory information, a step by step guide, and some comments. The projects are presented in a sequential order that could be followed by someone new to the hobby. The book starts with projects related to purchasing and working with Atari computers and peripherals followed by chapters on software, BASIC programming, and useful resources. Included are projects on original hardware and software, as well as projects covering recent developments in technology such as flash memory devices and emulators that can enhance the Atari experience. The book is 122 pages with lots of color photos. It is printed on high-quality paper and sells for $19.80 on Lulu. Of course, all the projects can be found for free on the Atari Projects website if you don't want to buy the book. The advantage of the book is that the projects have been curated, presented in a logical order, and heavily edited. I hope you find the book fun and useful!

I am selling a lot of VIDEO GAMES, LASER DISKS, CD’S, DVD’S, BOOKS, PLAYSTATION 2 & 3, X-BOX & X-BOX 360, and a couple WII GAMES.. I WOULD LIKE JUST TO SELL ALL OF THEM TO ONE PERSON. IT WOULD BE TO YOUR BENEFIT BECAUSE I WILL GIVE YOU. WEOME PRIE OR ALL OF THEM.. PLEASE THINK ABOUT THIS GREAT DEAL, BECAUSE I REALLY WANT TO GET RID OF ALL OF THESE FOR ONE SET PRICE... I HAVE APPROX. 75 ITEMS IF NOT MORE.. THANK YOU, FROM, LANI KOCHEVAR

If you're as crazy about olden media as I am you may want to have a look at these torrents. Second post in this reddit thread: https://www.reddit.com/r/DataHoarder/comments/ag8ce1/ive_made_a_collection_of_approx_11000_old_game/ It's a terabyte or two worth of magz'n manuals kinda stuff...I already have a lot of it in my collection, but am now considering buying a new HDD and just grabbing it, because being able to download it all with couple of clicks instead of crawling thorugh all these sites and picking them individually is a massive time saver.

Okay, so I am a huge science fiction nut, from Asimov to Herbert to Adams. But I dont just love Science Fiction books, I love movies and television too, like Blade Runner, and Star Trek. Another big thing I love is Science Fiction in video games and i cant think of a decade of more science fiction in gaming than the Eighties. If you are digging in a pile of atari games and pick put a random cart, id say 9/10 its going to be at least something sci fi releated (most likely a Space Invaders clone but thats neither here nor there) like space or robots or aliens. Now my question is which books or rather which decade of books would you say inspired these science fiction stories found in the manuals of these old games? I just love these stories and id love to read full books like them! This doesnt have to be atari necessarily, arcades work too!

I am keen to get the APF with computer keyboard. I also collect 6800 and 6809 systems going back to SWTPC computers. In addition, I like collecting old computer books. Topics such as microprocessors, microprocessor interfacing, assembly language, BASIC books and so forth. Cheers

3 Atari ST Programming books (2 by Abacus Software and 1 by Clayton Walnum Atari ST INTERNALS ATARI ST GEM Programmer’s Reference Clayton Walnum’s C-manships COMPLETE Learn to program your ST in C! Eric in Montreal, Canada Contact me if your interested. ericet@macdev.ca

Hi everyone! Time for another posting of goodies for sale. Some of these are going to be really inexpensive... I plan on having $1 items, $2 items etc as well as some more normal priced items. I'll also have bundled items and of course, if you purchase a bunch of items, I'll try to make a deal. Let me know your thoughts. I want to make a minimum order of say $10 or more. Shipping will be actual postage price.. no handling fees or anything like that. One thing to note is that I am in Canada and shipping is sometimes high. At this point I am adding photos and will start adding the prices when I finish uploading the photos. And of course, without further delay... the items.... MegaMan NES $30 (only as I can get $40 in trade for it) Vic 20 Xonox Manual for Sir Lancelot $5 Metroid 2 promo keychain $5 Club Nintendo Playing Cards $5 Code of Princess 3DS - Game with artbook and CD soundtrack $25 5200 Manuals $1 each or the whole lot for $5 $2 items or $3 for 2 items Ok... that's all for now. If I find anything else, I will be sure to add them but this is it for the time being. See something you like... let me know and we can make it happen. Thanks for reading!

Hi Got a few items that I've put on ebay, but as they're not advertised with international shipping, you can PM me here direct if interested. hardware currently in good working order, but (due to age) no guarantees as to future reliability ■ THREE of these five XENs are available - serious offers only please ■ TWO hard to find program recorders ■ Broderbund Apple Science Kit (it's a "review copy") ■ collection of books - available as singles or complete. Note: these are in the UK and shipping will likely be: 65XEN - £25 (USA), £18 (Europe) £10 (UK) Program Recorder - £15 (USA), £10 (Europe), £7 (UK) Book or Science Kit - £10 (USA), £7 (Europe), £5 (UK) please make offers via PM obviously multiples will be cheaper, all post insured/tracked, paypal gift only