Most code-efficient way to invert the screen
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Sorry if this question was already answered somewhere:

I have this invert-screen function and want to know if there's one that takes less space. Storage optimization is more important than speed optimization. I couldn't find a B_CALL routine other than Invert-Box, which has its issues.


Code:
ld hl, plotsscreen
push hl
pop de
ld bc, 768
Loop:
ld a, (hl)
cpl
ld (hl),a
ldi
jp pe, Loop
Just replace ldi with cpi then you don't have to load de.
  
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