M166 Datasheet, PDF (60/127 Pages) Siemens Semiconductor Group – C16x Family of Siemens 16-Bit CMOS Single-Chip Microcontrollers

30Mar98@15:00h
C166 Family Instruction Set
Instruction Description
CPL
Integer One’s Complement
CPL
Syntax
Operation
Data Types
Description
CPL
op1
(op1) ← ¬(op1)
WORD
Performs a 1’s complement of the source operand specified by op1. The
result is stored back into op1.
Condition Flags
E
Z
V
C
N
*
*
0
0
*
Addressing Modes
E Set if the value of op1 represents the lowest possible negative number.
Cleared otherwise. Used to signal the end of a table.
Z Set if result equals zero. Cleared otherwise.
V Always cleared.
C Always cleared.
N Set if the most significant bit of the result is set. Cleared otherwise.
Mnemonic
CPL
Rw_n
Format
91 n0
Bytes
2
Semiconductor Group
60
Version 1.2, 12.97