SGS ATES Z80, Instruction Set, Page: 81 / 273

ADD
A,
The contents of register r are added to the contents of
the Accumulator, and the result is stored in the
Accumulator. The symbol r identifies the registers
A,B,C,D,E,H or L assembled as follows in the object
code:
Register r
A 111
B
000
C 001
D 010
E 011
H 100
L 101
Set if result is negative;
reset otherwise
Set if result is zero;
reset otherwise
Set if carry from
Bit 3; reset otherwise
Set if overflow;
reset other' · lise
Re se t
Set
if carry from
Bit 7; reset otherwise