Assembly Possible on the TI-81 (???)
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Assembly Possible on the TI-81 (???)
Alright. I'm going to give my standard disclaimer: I'm just a user, not a
programmer. And I'm no hardware/software guru either. But, I had an idea
for getting assembly support to the TI-81.
Someone a while back posted on ticalc.org that the TI-81 was in fact wired
for a link port. So, install a 2.5mm jack there.
OK yeah that sounds stupid. "No link port software." That's the thing.
In the news lately have been reports of a buffer/stack overrun problem with
popular email clients. Well, why couldn't the stack be overrun on a TI-81?
Maybe if the memory were filled up and a certain instruction executed?
Anyhow, overflow the stack with an instruction to begin dumping all input on
the linkport to the RAM. I don't know you'd do anything to the VAT with
this. But again, this is just an idea.
Use that dumped stuff to call the ROM and build from the ground up a shell
that accepts file transfers. It may never do assembly games, but perhaps
TI-81's will finally have links...
--Matt Cooper / mnemonicdevice@hotmail.com
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