Hi Thomas,
> Your code works as long as you only new have one single object that can start at random positions.
>
> If you use more than one object (and/or VDELPx) then you will need a more general solution, because then you can't "waste" a whole register for every object. That's what .skipDraw and my latest "Zombie optimization" are made for.
You're right. I only have one player that is randomly positioned (the climber). All the other objects are stationary vertically.
> I think the first BMI is avoidable. As long as X is negative (or < 0) the carry flag will also be set after the compare.
Well, I'll be...you're exactly right. That's 2n bytes saved :)
Take care,
Dennis
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