Re: A86: sub

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Re: A86: sub


ops are 11 bytes. The format is a bit strange and I can't really understand it.
Two of the bytes are used like flag bytes (one for sign and if it is real, the
other for exponetal).
I not sure where to find info on this topic because I want to know as well.

Andrew T wrote:

> Well if you think about it.....the os of the calc is done with asm and you
> can subtract numer that are greater then 16 bits so there has to be a way.
> And I think that the ops are only 16 bits its been oer a year and i can't
> remember tho.
>
> Andrew
> >From: Jeanne9005@aol.com
> >Reply-To: assembly-86@lists.ticalc.org
> >To: assembly-86@lists.ticalc.org
> >Subject: Re: A86: sub
> >Date: Sat, 18 Sep 1999 11:55:34 EDT
> >
> >
> >I thought that the OPs would only do 16 bit math, not higher..  Is this
> >true, or is the processor capable of math greater than 16 bit?
> >
> >Glen
> >tutorial1.cjb.net
> >
> >In a message dated Sat, 18 Sep 1999 10:58:29 AM Eastern Daylight Time,
> >ComAsYuAre@aol.com writes:
> >
> > >
> > > In a message dated 9/18/99 12:20:35 AM Eastern Daylight Time,
> > > ironman_294@hotmail.com writes:
> > >
> > > > Ok I might have to subtract numbers that take up more mem then 16
> >bits.
> > > And
> > > >  as I thought about it I came up with takeing one bit at a time and
> > > >  subtracting them.  Will this work or am I just out of my mind (if I
> >am
> > > right
> > > >
> > > >  would I use the carry flag or not).
> > > >
> > >
> > >
> > > Um, you'll probably want to use the floating-point OP registers for
> >greater
> > > than 16-bit math.  It's a heckuva lot easier than subtracting one bit at
> >a
> > > time.
> >
> >
> >
>
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