Re: A82: Re: A few Questions about 83->82 ASM
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Re: A82: Re: A few Questions about 83->82 ASM
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Ahmed El-Helw <ahmed@ticalc.org>
Program Ideas and Upcoming Programs
the ticalc.org project - http://www.ticalc.org/
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----- Original Message -----
From: <Jkhum98@aol.com>
To: <assembly-82@lists.ticalc.org>
Sent: Friday, January 01, 1999 2:33 PM
Subject: Re: A82: Re: A few Questions about 83->82 ASM
>
>So, I am suppose to use ROM_CALL(D_HL_DECI) to display the contents of HL
in
>_Small Font_ is that right? And if I wanted to display the value of A at
>(GRAF_CURS), I would load A to L, '0' to H, but then why '1' to B? Is B the
>input for the length of the string or something like that?
D_HL_DECI is for big text... I don't know about GRAF_CURS..
to display a, you'd do
ld a,l
ld h,0
>
>And another thing, the 82 include files define the OPX registers
(locations),
>but are there no OP Operations...? =P Are they just undocumented, because
the
>OS certainly must use them, or _something_ for its normal usage in
>calculations. Without the OP commands, how are Floating Point Operations
>accomplished currently...?
No, OPs on the 82 are just a place to store stuff.. in ash3.1, you can do op
operations.. but all operations can be done without ops :)
>
> --Jason K.
>