Re: A86: very very odd
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Re: A86: very very odd
At 16:36 1998-02-15 -0500, you wrote:
> Perhaps TI is figuring that "possibly somewhere down
>the line" they'll come out with an 87, 89, or whatever, and will want to
>make it "mostway" compatible with the 86, even at an assembly level. By
>finding routines they aren't likely to need to move, they give us some
>access to ROM, without terribly preventing that plan.
You should only use rom calls at ROM page 13, because that page
almost only contains JP <addr> instructions, which is made for
compatibility. Most likely, the reason for it being is to make
it compatible between different ROM versions, not for different
calcs. Some early TI-86 asm proggs called directly to ROM page
0,1 etc, and they didn't work on ROM 1.3 later...
If they want to make an TI-87 or something with ti-86 asm
support, every single (almost) system variable at $C000-> would
have to be at the same spot though. I doubt they can make very
many improvements, having that limit.
--
Real name: Jimmy Mårdell
IRC......: Yarin
Email....: mailto:yarin@acc.umu.se <-- NEW E-MAIL ADDRESS!!!!
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