ZiLOG Z80-CPU Technical Manual page 50

Flags
OP-Code
No. No.
No.
Symbolic of
ofM orT
Mnemonic Operation C
ZP/V
S N H 76 543 210 Bytes
Cycles Cycles
LD r, r' r~r'
• • • • • •
01 r r' 1 1 4
LD r, n r ... n
• • • • • •
00 r 110 2 2 .7
+-
n
....
LD r, (HL) r
+-
(HL)
•
. .
• • • •
01 r 110
1 2
7
LD r, (IX+d)
r
+-
(IX+d)
•
•
• •
~
..
11 011 101 3
5 19
01
r
no
...
d
....
LD r, (IY+d) r ... (IY+d)
• • • • • •
11 III 101
3 5 19
01 r
110
...
d
....
LD (HL), r (HL)
+-
r
•
• • • • •
01 1I0 r 1
2 7
LD (IX+d), r (IX+d) ... r
• • • • • •
11 011 101 3 5
19
01 llO r
...
d
....
LD (IY+d), r
(IY+d) ... r
•
•
• • •
•
11 III 101 3 5 19
01 llO
r
+-
d
....
LD (HL), n (HL) +- n
• •
•
• • •
00 llO llO 2
3
10
+- n
....
LD (IX+d), n
(IX+d) ... n
• • •
• •
•
II 011 101 4 5 19
00 llO 110
+-
d
....
+- n
....
LD (IY+d), n (IY+d) +- n
• • • • •
. .
11 III 101 4 5 19
00
llO 110
+-
d
->
+- n
->
LD A, (BC)
A+- (BC)
• • • • •
•
00 001 010 1 2
7
LD A, (DE) A+-(DE)
•
• • • • •
00 011 010 1 2 7
LD A, (nn)
A+- (nn)
• • • • • •
00 III 010 3 4 13
...
n
->
+- n
->
LD (BC),A (BC)+-A
• • • •
•
•
00 000 010 1
2 7
LD (DE), A (DE)+-A
• • • • • •
00 OlD 010 1 2
7
LD (nn), A
(nn) ... A
• • • • • •
00 llOOIO 3 4 13
...
n
->
...
n
->
LDA,I
A ... I
•
tIFF t 0 0 11 101 101
2 2
9
I
01 010 III
LDA,R
A ... R
•
tIFF t
0 0
11 101 101 2 2 9
01 011 III
LD I,A
I ... A
• • •
•
• •
11 101 101 2 2 9
01 000 III
LDR,A
R ... A
• • • • • •
11 101 101 2 2 9
01 001 III
Notes: r, r' means any of the registers A, B, C, D, E, H, L
IFF the content of the interrupt enable flip-flop (IFF) is copied into the
P/V
flag
Flag Notation: •
=
flag not affected, 0
=
flag reset, 1
=
flag set, X
=
flag is unknown,
~
= flag is affected according to the result of the operation.
S-BIT LOAD GROUP
TABLE 7.0-'
44
Comments
r, r'
Reg.
000 B
001
C
010
D
011 E
100 H
101
L
III
A