Re: A85: Another newbie question, about sprites


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Re: A85: Another newbie question, about sprites




Does this work?:
 ld bc, $2020
 ld hl, (&A_shape)  ; Should parens be around something here?
 ld a,4
 out (5),a
 #fncall PSPR_NR
 ld a,0
 out (5),a
A_shape:
 .db 8,8
 .db %00000000
 .db %11111110
 .db %10000010
 .db %10000010
 .db %10000010
 .db %10000010
 .db %10000010
 .db %11111110

Josh Phillips wrote:

> I'm trying to output some simple sprites on a blank background in Usgard, so I
> immediately gravitated toward the PSPR_NR function (now that I have #fncall
> working... :-)).  But it's only given me misery, invariably crashing my
> calculator or not displaying the sprite.  Here's a code snippet:
>
>  ld b,32
>  ld c,32
>  ld hl,&A_shape
>  ld a,4
>  out (5),a
>  #fncall PSPR_NR
>  ld a,0
>  out (5),a
> A_shape:
>  .db 8,8
>  .db %00000000
>  .db %11111110
>  .db %10000010
>  .db %10000010
>  .db %10000010
>  .db %10000010
>  .db %10000010
>  .db %11111110
>
> I'd like to know either what's wrong with this code, or what method would be
> better to use.
>
> JOSH.
>
> --
> ---------------------------+-------------------------------------------
> JOSH. Phillips             | "You know, at certain times we all look
> jalbenphillips@hotmail.com |  stupid but I think the key is not to
> ---------------------------+  mind it."
>                                                     - Wade, "Babylon 5"
>
> Josh's Homepage: http://www3.sympatico.ca/susan.phillips1/josh/




References: