ZiLOG Z80 Handbook

Chart 4-1.
Z-80 Addressing Modes
REGISTER
INDIRECT
J (O 1
2 a0 C VI
o W
c > o
d 1 ? m
NOTES
T LD R,S a ,• • S IS ADDRESSING
MODE TYPE
LD S,R
• R I S REG I STER A . B, C. D. E. H, OR L
LD S,N • N IS 8-BIT IMMEDIATE VALUE
ao LD
A,S i •• A IS AREGISTER
LD S,A • •
LD A,I • I IS
I REGISTER
LD A,R
•
R IS RREGISTER
LD IA •
LD R,A
•
RREGISTER
LD DD,S ! • DO IS BC, DE, HL, SP
LD IX,S • •
LD IY,S • •
LD HL,(NN) !
NN IS ADDRESS FIELD
LD INNI,HL
LD INNI,DD •
a LD INN),IX •
LD (NN),IY •
LD SP,HL •
LD SP,IX •
LD SP,IY •
PUSH QQ QQ IS BC, DE, HL, AF
PUSH IX •
PUSH IY •
POP QQ
POP IX •
POP IY •
EX DE,HL
EX AF,AF' •
EXX •
x x EX (SP),HL
EX ISPI,IX •
EX ISPI,IY •
LDI • • SEE CHAPTER 5FOR DETAILS
z LL LDIR • •
LDD • •
W LDDR • •
CPI •
CPIR •
CPD •
CPDR •
ADD A,S •• •
ADC A,S •
•
- SUBS • 00
SBC A,S
ANDS 0
ORS
XOR S
s
s
• •
• •
-"I CPS • • •
I N C S
W1_ DEC S
DAA, CPL,
NEG, CCF,
SCF, NOP,
I LT, Dl,
El
,
IMO,
IM 1, IM 2
11
NOTE--INSTRUCTIONS AND ADDRESSING MODES USED IN
THE 8080 ARE DESIGNATED BY A SINGLE
LINE UNDER THE
DOT. THOSE USED IN THE 8008 AND 8080
ARE DESIGNATED
BY A DOUBLE LINE UNDER THE DOT.
52

ZiLOG Z80 Specifications

General

Manufacturer	ZiLOG
Introduction Year	1976
Clock Speed	2.5 MHz to 20 MHz
Data Width	8-bit
Address Width	16-bit
Instruction Set	Z80
Transistor Count	8, 500
Package	40-pin DIP
Category	Microprocessor
Memory Address Space	64 KB
Voltage Supply	5V