ZiLOG Z8 Technical Manual

Instruction Set
5.5
INSTRUCTION SUMMARY
Instruction
Addr Mode
Opcode
Flags Affected
Instruction
Addr Mode
Opcode
Flags Affected
and Operation
dst
Byte
and Operation
dst
Byte
src
(Hex)
CZSVDH
src
(Hex)
CZSVDH
ACC dst,src (Note 'I)
10
* 0 *
LDE dst,src
r
Irr
82
------
dst - dst + src +'C
dst - src
Irr
92
ADD dst,src
(Note 1) 00
*
* * *
0 *
LDEI dst,src
Ir Irr
83
------
dst - dst + src
dst - src
Irr Ir
93
r - r +
I; rr - rr + 1
AND dst,src
(Note 1) 50
0--
dst - dst AND src
NOP
FF
CALL dst
DA
D6
------
OR dst,src
(Note 1) 40
- .
* 0
SP - SP - 2
IRR
D4
dst - dst OR src
@SP - PC; PC - dst
POP dst
R
50
------
CCF EF
*-----
dst - @SP
IR
51
C - NOTC
SP - SP + I
CLR dst
R
BO
------
PUSH src
R
70
dst - 0
IR BI
SP
- SP -1; @SP- src IR
71
COM dst
R
60 -**0--
RCF
CF o -
dst - NOT dst
IR 61
C-O
CP dst,src (Note 1)
AD
RET
AF
------
dst - src
PC - @ SP; SP - SP + 2
DA dst
R
40 * X - -
RL dst
0.IE::3J
R
90
dst - DA dst IR
41
IR
91
DEC dst
R
00
RLCdst[~ I~
10
dst - dst - I IR
01
11
DECW dst
RR
80
RR dst
lE]lc:=:3--l/it
EO
EI
dst - dst - I
IR 81
DI 8F
IMR
(7) - 0
RRCdst~I~
CO
------
CI
SBC dst,src
(Note I) 3D
·
• I
.
DJNZ r,dst
RA
rA
- - - - -.-
dst - dst - src - C
r - r -
I
r=O-F
if r :1= 0
SCF
DF
I - - -
PC - PC + dst
C-l
Range: + 127, -128
SRA dst
lE]~I~
DO
.
·
* 0
EI 9F
------
Dl
IMR(7) - I
SRP src
1m
31
INC dst rE
-
* * • - -
RP - src
dst - dst + 1
r=O-F
SUB dst,src (Note I) 20
.
·
* * I
*
R
20
dst - dst - src
IR
21
SWAP dst ~ R
FO
X
·
• X - -
INCW dst RR AO
-
* * • - -
IR
FI
dst - dst +
IR
Al
TCM dst,src
(Note I) 60
-
·
• 0 - -
IRET
BF
.
* * • * •
(NOT dst) AND src
FLAGS - @SP; SP - SP + I
TM dst,src (Note I) 70
• 0 - -
PC - @ SP; SP - SP + 2; IMR (7) -I
-
·
dst AND src
JP cC,dst
DA
cD
------
if cc is true
c=O-F
XOR dst,src (Note I) ED
-
·
• 0 - -
PC - dst
IRR
30
dst - dst XOR src
JR cc,dst
RA
cB
------
Note 1
if cc is true,
c=O-F
These instructions have an identical set of addressing
PC - PC + dst
Range: + 127, -128
modes, which
are encoded for brevity, The first opcode
nibble is found in the instruction set table above, The
LD dst,src
1M rC
------
second nibble is expressed symbolIcally by a L: in this
dst - src
r R r8 table,
and its value is found in the following table to the
R
r9
"left of the applicable addressing mode pair.
r=O-F
For example, to determine the opcode of an"ADC
r X
C7
instructIOn using the addressing modes r (destinatIon) and
X
r
D7
Ir (source) is 13"
r Ir E3
Ir r
F3
Addr Mode
R
R
E4
Lower
R IR
E5
dst src
Opcode Nibble
R
1M E6
IR 1M E7
.l"
IR R F5
Ir
~
LDC dst,src
r Irr
C2
------
R R
~
dst - src Irr
D2
R IR
~
LDCI dst,src
Ir Irr
C3
------
R
1M
:I
dst - src Irr
Ir
D3
r - r + I; rr - rr + I
IR
1M
:I.
5-6
8085-003

ZiLOG Z8 Specifications

General

Brand	ZiLOG
Model	Z8
Category	Desktop
Language	English