Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!®
184
.
Table 115. Notational Shorthand
Notation Description
Operand Range
b
Bit
b
b represents a value from 0 to 7 (000B to 111B).
cc
Condition Code
—
See Condition Codes overview in the eZ8 CPU User
Manual.
DA
ER
Direct Address
Addrs
Reg
Addrs. represents a number in the range of 0000H to
FFFFH
Extended Addressing Register
Reg. represents a number in the range of 000H to
FFFH
IM
Ir
Immediate Data
#Data
@Rn
Data is a number between 00H to FFH
n = 0 –15
Indirect Working Register
Indirect Register
IR
@Reg
@RRp
@Reg
Reg. represents a number in the range of 00H to FFH
p = 0, 2, 4, 6, 8, 10, 12, or 14
Irr
Indirect Working Register Pair
Indirect Register Pair
IRR
Reg. represents an even number in the range 00H to
FEH
p
Polarity
p
Polarity is a single bit binary value of either 0B or 1B.
n = 0 – 15
r
Working Register
Register
Rn
Reg
X
R
RA
Reg. represents a number in the range of 00H to FFH
Relative Address
X represents an index in the range of +127 to –128
which is an offset relative to the address of the next
instruction
rr
Working Register Pair
Register Pair
RRp
Reg
p = 0, 2, 4, 6, 8, 10, 12, or 14
RR
Reg. represents an even number in the range of 00H to
FEH
Vector
X
Vector Address
Indexed
Vector
#Index
Vector represents a number in the range of 00H to FFH
The register or register pair to be indexed is offset by
the signed Index value (#Index) in a +127 to -128
range.
Table 116 contains additional symbols that are used throughout the Instruction Summary
and Instruction Set Description sections.
PS017610-0404
eZ8 CPU Instruction Set
ZILOG [ ZILOG, INC. ]
