Sharp MZ-80B Owner's Manual page 103

94
Symbolic
Flags
OP- Code
No. No. No.
Mnemonic
of of M
ofT Co mments
Operation
c z
P/ V
s
N H
76 543 210
Bytes
Cycl es
States
ADD A,r A~A+r
t t
v
t
0
t
10
[QQQ]
r 1 1 4 r
Reg.
ADD
A,n A~A+n
t t v t
0
t
11
[@Q]
110 2 2 7 000 B
~
n
~
001
c
ADD A,(HL)
A~A + (HL)
t t v
t
0
t
10
IQQQJ
110 1 2 7
010 D
ADD A, (IX + d)
A ~A + (IX + d)
t
t v t
0
t
11 011 101 3 5 19
011
E
10
IOOol no
100
H
~
d
~
101 L
t t
t
t
Ill A
ADD A, (I Y + d) A ~A+ (IY + d)
v
0 11 Ill 101 3 5 19
10
IQQQJ
110
~
d
~
ADC A,s
A~A+s+CY
t
t
v
t
0
t
[QQ!] sis any of r, n, (HL), (IX +
SUB s
A~A-s
t t
v
t
1
t [[!QJ
d) , ( IY + d) as shown for
SBC A,s
A~A-s - CY
t t
v t
1
t lli]
ADD instruction
AND s A~A
As
0
t
p
t
0 1
I!Qill
The indi cat ed bits repl ace
OR s
A~Avs
0
t p
t
0 0
~
the
IQQQJ
in the A DD set
above.
XOR s
A~Avs 0
t
p
t
0 0
[@)
CP s
A- s
t t v t
1
t
[IT)
INC r r ~ r+1
•
t v t
0
t
00 r
[ !QQJ
1 1 4
INC (HL) (HL)<-(HL) + 1
•
t v t
0
t
00 110
I!Qill
1 3 11
INC
(IX + d) (IX + d) ~
•
t v t
0
t
11 011 101 3 6 23
(IX + d) + 1 00 110
I!Qill
~
d
~
INC (IY + d) (IY + d) ~
•
t
v
t
0
t
11 Ill 101 3 6 23
(IY + d) + 1 00 110
[!QQ]
~
d
~
DEC m
m-t--m- 1
•
t
v
t
1
t
[ill]
m is any of r, ( HL), (IX + d),
(IY + d) as show n for INC.
Same forma t an d stat es as
INC.
Repl ace
ITQQJ
wit h
ITQ!J
in
OP-code.
Notes: The V symbol in the P/V flag column indicates that the P/V flag contains the overflow of the result of the
operation Similarly the P symbol indicates parity. V = I means overflow, V = 0 means not overflow, P = I
means parity of the result is even, P = 0 means panty of the result is odd.
Flag Notation: • = flag not affected, 0 = flag reset, I = flag set, X = flag is unknown,
t
=
flag is affected according to the result of the operation.
8-BIT ARITHMETIC AND LOGICAL GROUP
TABLE 4.3-4