Re: A83: Calling All Great Programers Part III !!
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Re: A83: Calling All Great Programers Part III !!
If I'm not mistakened, the only reason you would ever use bcall() is to make
a call to a ROM call that may not necessarily be on the current ROM page.
Using bcall() ensures that it will jump to the right page first...
You didn't say that straight out, so I included it...
----- Original Message -----
From: <Mike3465@aol.com>
To: <assembly-83@lists.ticalc.org>
Sent: Monday, February 05, 2001 3:09 PM
Subject: Re: A83: Calling All Great Programers Part III !!
>
> woops
> I'm sorry about the bit of misinformation saying that bcall and call are
the
> same
> looking through the source code, i saw, later, that it is infact for the
ti83
> that bcall is just a defined call, so if it's purly ti83 your coding for
the
> 2 are interchangalbe
> but for the ti83+ it is different
>
> but the code could easily be changed for compatabliity. for example, the
> following code could be changed to work on both:
> (83 only)
> call junk
>
> (83 and 83+ converted:)
> bcall(junk)
>
> it only differes once the code is made, apparently their is some extra
code
> needed. taken straight from ion.inc:
> (83 version)
> #define bcall(xxxx) call xxxx
> (83+ version)
> #define bcall(xxxx) rst 28h \ .dw xxxx
>
> this is just a thireitical approach to this. but this is, what it might
be....
>
> change program address(rst 28h),
> new address(.dw xxxx)
>
> Tell me if I'm wrong, but anyways
> I hope that helps, and not confuse you....well anyways
> bye!
>
>
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