Re: A86: Re:

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Re: A86: Re:


You could also save a byte by using a jp rather than a call to _ILine, and
then you can leave off the ret, because the end of the _ILine routine has a
ret already.  Not too great in this case, but it can add up...

Bill N. wrote:

> Filipe Alberto Soares Pinto wrote:
>
> > I'd like to ask two questinons
> >
> > 1.
> > Why doesn't this work?
> >
> > #include "asm86.h"
> > #include "ti86asm.inc"
> > #include "ti86math.inc"
> > #include "ti86ops.inc"
> > #include "ti86abs.inc"
> >
> > .org _asm_exec_ram
> >
> >         call _clrLCD
> >         ld hl,1
> >         ld b,3
> >         ld c,5
> >         ld d,5
> >         ld e,1
> >         call _ILine
> >
> > .end
> > END
> >
> > I've tried changinh b,c,d and e value, but it still crashes my calc
> >
>
> Besides the missing ret, try using ld h,1 instead of ld hl,1
>
> ;-----------------------------------------------------------------------
>
>  ;  _ILine: Draw an unclipped line from (B, C) to (D, E), no clipping!
>  ;
>  ;        INPUT: Coordinate values input are integer, and assumed
>  ;               within screen values.
>  ;               B - X Coordinate of first point
>  ;               C - Y Coordinate of first point
>  ;               D - X Coordinate of second point
>  ;               E - Y Coordinate of second point
>  ;               H - Command to
> perform
>  ;                      0 - Set points to light
>  ;                      1 - Set points to dark
>  ;                      2 - Reverse point (XOR operation)
>  ;-----------------------------------------------------------------------
>
> Bill N.
> penguin@your-house.com



--
Stephen Hicks
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