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Use all 32K on TI-95 RAM Cartridge
07-25-2017, 06:46 AM
Post: #2
RE: Use all 32K on TI-95 RAM Cartridge
It would be nice to mention that I sent this info to you.

On 2017-07-06 08:54, HrastProgrammer wrote:

Quote:On 2017-07-05 19:20, Tom Lake wrote:

Would you happen to know what memory locations on the TI-95 need to be
modified to fully use a 32K RAM cartridge? I found the guy who
designed the calculator and he said he knew it’s possible but
couldn’t remember how it was done. Any insight you might be able to
give would be appreciated!

Based on ROM disassembly examination, TI-95 can recognize/initialize 8K and 16K RAM cartridges but cannot recognize 32K cartridges out-of-the-box.

My TI-95 emulator boots with 16K and after that I edited the RAM file and changed the following locations:

BFF4: 7F
BFFC: 20

Byte at BFFC contains cartridge size in KB (20 hex = 32KB) while the word at BFF4/BFF5 contains free memory (high byte first). After that I see 32752 bytes free inside the emulator.

I didn't test if everything works OK with 32K, though.

Best regards.
HrastProgrammer

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RE: Use all 32K on TI-95 RAM Cartridge - HrastProgrammer - 07-25-2017 06:46 AM



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