TI-95 With 32K RAM Cartridge

[Thomas Lake]

I'm trying to use a 32K RAM cartridge with the TI-95. I'd like to be able to allocate all 32K between program steps, registers and file space but the limit seems to be 16K. I've heard that there are locations in memory that can be poked with values to allow the 95 to access the whole 32K cartridge. If you know what those locations are could you let us know what we have to do to get the extra RAM? If you know of a Website that has the information, please let us know that URL. Thanks!

Tom L

[Thomas Lake]

In my search for truth, justice (and the American Way?) I discovered how to use the full capacity of the 32K cartridge for file storage, at least.

Back up any files stored on the cartridge since this will erase them all.

To allow full access:

(numbers are in Hex)

Store 20 in BFFC

Store 7F in BFF4

Key-by-key method:

1. Enter Hex Mode by pressing CONV, BAS (on function key), HEX (on function key)

2. Enter System mode by pressing FUNC, SYS (on function key), YES (on function key)

3.Type 2,0

4. Press STB (on function key)

5. Type 2nd, B (on HYP key), 2nd, F (on RCL key), 2nd, F (on RCL key), 2nd C (on INCR key)

6. Type 7, 2nd F (on RCL key)

7. Type 2nd B (on HYP key), 2nd F (on RCL key), 2nd F (on RCL key), 4

Now when you do a CAT of the file space on the cartridge, it will show 32752 bytes free. You can remove the cartridge, insert other cartridges, 

even press reset or insert the 32K cart in another machine. The number of free bytes on that 32K cart will still be correct.

The number of free bytes is stored on the cartridge.

Tom L

On Wednesday, July 5, 2017 at 11:48:53 AM UTC-4, Thomas Lake wrote: