Re: A89: Re: Re: Addressing

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Re: A89: Re: Re: Addressing


Taking the advice of Johan, I changed the mulu.l to mulu.w.  That caused a 
lovely crash complete with grayscale static.  (Which I suppose was better 
than a blank screen and an address error.)  I then tried the optimized code 
he was kind enough to include.  It caused the same lovely crash.  Any ideas?

choose:
    ; in:   d0.w=x
    ;   d1.w=y
    ;   d2.w=picture number (0=first)
    ;
    lea Pic0(pc),a0
    lsl.w   #3,d2
    add.w   d2,a0
    add.w   d2,d2
    add.w   d2,a0
    moveq   #-1,d3
    move.l  graphlib::plane0,a1
    lea graphlib::put_sprite_mask,a2
    jsr (a2)
    lea 12(a0),a0
    move.l  graphlib::plane1,a1
    jmp (a2)
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