RosettaCodeData/Task/Twos-complement/Z80-Assembly/twos-complement-3.z80

7 lines
131 B
Z80 Assembly
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2023-07-01 11:58:00 -04:00
xor a ;ld a,0
sub c
ld c,a
sbc a ;loads &FF into A if "sub c" set the carry (borrow) flag. Otherwise, a remains zero.
sub b
ld b,a