M166 Datasheet, PDF (91/127 Pages) Siemens Semiconductor Group – C16x Family of Siemens 16-Bit CMOS Single-Chip Microcontrollers

30Mar98@15:00h
C166 Family Instruction Set
Instruction Description
OR
Logical OR
OR
Syntax
Operation
Data Types
Description
OR
op1, op2
(op1) ← (op1) ∨ (op2)
WORD
Performs a bitwise logical OR of the source operand specified by op2 and
the destination operand specified by op1. The result is then stored in op1.
Condition Flags
E
Z
V
C
N
*
*
0
0
*
Addressing Modes
E Set if the value of op2 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
OR
Rw_n, Rw_m
OR
Rw_n, [Rw_i]
OR
Rw_n, [Rw_i+]
OR
Rw_n, #data3
OR
reg, #data16
OR
reg, mem
OR
mem, reg
Format
70 nm
78 n:10ii
78 n:11ii
78 n:0###
76 RR ## ##
72 RR MM MM
74 RR MM MM
Bytes
2
2
2
2
4
4
4
Semiconductor Group
91
Version 1.2, 12.97