ZiLOG Z8 Technical Manual

5.1 FUNCTIONAl SUHHARY
ZS instructions can be divided functionally into
the following eight groups:
•
Load
•
Arithmetic
•
Logical
•
Program Control
•
Bit Manipulation
•
Block Transfer
•
Rotate and Shift
•
CPU Control
The following summary shows the instructions
belonging to each group and the number of operands
required for each. The source operand is "src",
"dst" is the destination operand, and "cc" is a
condition code.
load Instructions
Mnemonic Operands Instruction
CLR dst
Clear
LD
dst,src Load
LDC
dst,src Load Constant
LDE
dst,src
Load External
POP
dst Pop
PUSH src
Push
Arithmetic Instructions
Mnemonic Operands Instruction
ADC dst,src
Add With Carry
ADD
dst,src Add
CP
dst,src
Compare
DA dst
Decimal Adjust
DEC
dst Decrement
DECW dst
Decrement Word
INC
dst
Increment
INCW
dst Increment
Word
SBC
dst,src Subtract With Carry
SUB
dst,src Subtract
Chapter 5
Instruction
Set
Logical Instructions
Mnemonic Operands
AND dst,src
COM dst
OR dst,src
Instruction
Logical And
Complement
Logical Or
XOR dst,src
Logical Exclusive Or
Program-Control
Instructions
Mnemonic
Operands Instruction
CALL dst Call Procedure
DJNZ
r,dst
Decrement and Jump NonO
IRET I nt errupt Return
JP cc,dst Jump
JR cc,dst
Jump Relative
RET Return
Bit-Manipulation Instructions
Mnemonic Operands Instruction
TCM
dst,src
Test Complement Under Mask
TM dst,src
Test Under
Mask
AND
dst,src
Bit Clear
OR dst,src Bit Set
XOR dst,src
Bit
Complement
Block-Transfer Instructions
Mnemonic Operands Instruction
LDCI dst,src
Load Constant
Auto-
increment
LDE! dst,src Load External Auto-
increment
Rotate and Shift Instructions
Mnemonic Operands Instruction
RL dst
Rotate Left
RLC dst
Rotate Left Through Carry
RR dst
Rotate Right
RRC dst Rotate Right Through Carry
SRA dst
Shift Right Arithmetic
SWAP dst Swap Nibbles
5-1

ZiLOG Z8 Specifications

General

Brand	ZiLOG
Model	Z8
Category	Desktop
Language	English