Re: A83: IS>(

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Re: A83: IS>(


That shouldn't be too hard -- use HL and DE, and instead of "SUB a,b", "SBC hl,de" -- that
should work, right people?

James.

----- Original Message -----
From: Jacob Guilbeau <JakeGuilbo@home.com>
To: <assembly-83@lists.ticalc.org>
Sent: Sunday, February 20, 2000 4:49 AM
Subject: Re: A83: IS>(


>
> Thanks a lot!  The only problem I see with this is that the 'a' register is
> only an 8 bit register thereby leaving me to have only the numbers from
> 0-255 in my system variables I and N.  For the purposes of my program, I am
> going to need to be able to use numbers greater than 10,000.  I appreciate
> your response though and for the time being, 0-255 should work fine!
>
> Thanks again!
>
> Jake
> ----- Original Message -----
> From: <Edub311@aol.com>
> To: <assembly-83@lists.ticalc.org>
> Sent: Friday, February 18, 2000 6:06 PM
> Subject: Re: A83: IS>(
>
>
> >
> > JakeGuilbo asked:
> >
> > > What would be a good way to implement the basic loop:
> > >
> > >IS>(I,N)
> > >
> > >in asm? >
> > >
> >
> > This is probably really inefficient but it should get the job done. Help
> me
> > out if I forgot anything.
> >
> > #DEFINE varI 8265h
> > #DEFINE varN 8267h
> >
> > .org 9327h
> >
> > call _zerooop1  ;Get sysvar N
> > ld hl,op1+1
> > ld (hl),'N'
> > call _rclvarsym
> > call _convop1
> > ld a,e
> > ld (varN),a
> >
> > call _zerooop1  ;Get sysvar I
> > ld hl,op1+1
> > ld (hl),'I'
> > call _rclvarsym
> > call _convop1
> > ld a,e
> >
> > inc a           ;IS>(I,N)
> > ld bc,(varN)
> > sub a,c
> > jp z,IislessthanorequaltoN
> > jp sp,IisgreaterthanN
> > IislessthanorequaltoN:
> >                 ;command here if I is less than or equal to N
> > jp Done
> > IisgreaterthanN:
> >                 ;command here if I is greater than N
> > Done:
> > rest of prog
> >
> >
> > The only difference is that if I< or =N, it will execute the needed
> command
> > and skip the next, whereas IS> would execute both. This can be remedied by
> > taking out the "jp Done".
> >
> > btw Linus Wrote:
> > >
> > >> sorry i can't answer that for you
> > >
> > >
> > >
> > >ROTFLMHO!.. Thanks, I needed that laugh...
> > >
> > >Linus
> >
> > You think that's funny, you should see his AOL profile.
> >
> >                                                                 Bud
> >
>
>
>
References: