Siemens C16 Series Instruction Set Manual page 92

ORB
Syntax
Operation
Data Types
Description
Condition Flags
Addressing Modes
Semiconductor Group
30Mar98@15:00h
Logical OR
ORB op1, op2
(op1) ← (op1) ∨ (op2)
BYTE
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.
E Z
* *
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
ORB Rb , Rb
n m
ORB Rb , [Rw
n
ORB Rb , [Rw
n
ORB Rb , #data3
n
ORB reg, #data16
ORB reg, mem
ORB mem, reg
C166 Family Instruction Set
V C N
0 0 *
Format
71 nm
] 79 n:10ii
i
+] 79 n:11ii
i
79 n:0###
77 RR ## xx
73 RR MM MM
75 RR MM MM
92
Instruction Description
ORB
Version 1.2, 12.97
Bytes
2
2
2
2
4
4
4