🚀 go-pugleaf

    Which blitter routine do the bob routines use for blitting through
a mask into the background?  I thought it was the bltmaskrastport
thingy but I'm told that's a really slow.  I want to do about the same
thing without using bobs and am not sure how to go about getting
the blitter to do an AB | ~BC to C where B is a mask and A is a bitmap
and C is the dest bitmap.

thanx,
--j
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... {seismo | harvard } ! {uwvax | cs.wisc.edu} ! astroatc!jojo
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