Friday, June 13, 2025

working with TI-99 4/A in 2025


This is a photo of one of my TI-99/4A computers that is hooked up to the file serving computer on the right. I would like to take this further and use this secondary computer as a RAM management for the TI also.

Why? Well the 32k RAM expansion gives you additional memory for TI-Extended BASIC, assembly language programs and GPL programs. The additional RAM is also is required for:

- Most of the upper end utilities and few fun 3rd party and many of the cooler home-bew stuff.
- Editor Assembler requires 32k memory expansion.
- Extended Basic can use up to 24k of the 32k memory expansion and 8k is available for loading assembly language programs.
- Logo can use 32k
- Microsoft Multiplan requires 32k memory expansion
- TI-writer requires 32k memory expansion

So how to go about it?  I'm going to study the pin configuration and chipsets used for existing solutions, then hopefully make something cheaper and more efficient that will work with what I have to work with.  Then document it like I have for other TI related projects to share and help others.

So, hopefully more to come soon.

No comments:

Post a Comment

TI Performance testing

Creative Computing wrote benchmark code. I converted the benchmark code: My goal is to benchmark all the TI products This is the code for p...