ZiLOG Z80-CPU Technical Manual page 56

Flags Op-Code
~
No.
Symbolic of
Mnemonic
Operation C Z V S N H 76 543 210 Bytes
RLCA ~ t
• • •
0 0 00 000 111 1
A
RLA
~
t
• • •
0 0 00 010 111 1
A
RRCA
~
t
• • •
0 0 00 001 111 1
A
RRA
~
t
•
• •
0 0 00 011 111 1
A
RLCr
t t P t 0 0 11 001 011
2
0010001
r
RLC (HL) t
t P t
0 0 11 001 011 2
0010001110
RLC (IX+d)
~
t t P t
0 0 11 011 101 4
r.
(Ht), (lX+d), (IYi-d)
11 001 011
~
d
-+
0010001
1
10
RLC (IY+d)
t t
P t
0 0 11 111 101 4
11 001 OIl
...
d -+
0010001110
RLm
L&=E3J
t
t P t 0 0
10101
mO=l,(HL).(IX+d), (lY+d)
RRCm
~La
t t P t 0 0 10011
m ~r.(HL), (lX+d), (IY+d)
RRm
~
t t P t 0 0
[QTIJ
m:=: r, (ilL), (IX+d). (IY+d)
SLAm
~o
t t P t 0 0
11001
m =:: r, (HL),(lX+d), (IY+d)
SRAm
~
t t
p
t 0 0
[}QI]
m == r, (ilL), (IX+d), (IY+d)
SRLm
o~
t t P t 0 0
[ill]
m =r,(HL),(IX+d), (lV+d)
RLD
A~(HL)
•
t P t 0 0 11 101 101 2
01 101 111
A~(HL)
RRD
•
t
p
t 0 0 11 101 101 2
01 100 111
Flag Notation: • =;'ilag not
affe~ted,
0
=
flag reset, 1
=
flag set, X = flag is unknown,
t
=
flag is affected according to the result of the operation.
ROTATE AND SHIFT GROUP
TABLE
7.0-7
50
No.
No.
ofM ofT
Cycles States
Comments
1 4 Rotate left circular
accumulator
1 4 Rotate left
accumulator
1 4 Rotate right circular
accumulator
1 4 Rotate right
accumulator
2
8
Rotate left circular
register r
4 15 r R£g.
000 B
6 23
001 C
010 D
011 E
100 H
101 L
6 23
111 A
Instruction format a nd
states are as shown
for RLC,m. To form
new OP·code replace
[QQQ)of RLC,m with
shown code
5 18 Rotate digit left and
right between the
accumulator
and location (HL).
5 18 The content of the
upper half of the
accumulator is
unaffected