I've just noticed that the two commands in the raster copy routine which you previously struck through:
ld b,0; this was set for usage in a different routine
ld c,32; this was set for usage in a different routine
are no longer struck out in posts 59 and 60. Although the accompanying comment after the semicolon remains in place, suggesting that those commands are still not necessary (and from my interpretation of the code, they aren't needed).
Perhaps the strikethrough font 'fell off' in the process of copying and pasting?
The strike through fell off and is lying somewhere in cyberspace.
The op codes in the listings which are unwanted have been rem'ed out and also struck through again. (just in case I paste and copy again) with that statement I am reminded that the original still has only the strike through. So I will edit that as well.
Code with the unwanted parts will still work. But since it is not needed best rem'out in addition to the strike through. (or just deleted completely)