How can THIS?

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      Writeln('START');
      Writeln(gfx[tn][State.Status][Fix(State.Moov), State.Anim, Byte(State.dfall)].w,
              ' ',
              gfx[tn][State.Status][Fix(State.Moov), State.Anim, Byte(State.dfall)].h);
      w:=gfx[tn][State.Status][Fix(State.Moov), State.Anim, Byte(State.dfall)].w; // line 834
      h:=gfx[tn][State.Status][Fix(State.Moov), State.Anim, Byte(State.dfall)].h;
      Writeln('ASSIGNED');
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Produce THIS?:

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START
78 78
An unhandled exception occurred at $080DDF77 :
EAccessViolation : 
  $080DDF77  TPLAYER__BLIT,  line 834 of lentilpawns.pas
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