Infineon Technologies C166S V2 User Manual page 284

ORB
Group
Syntax
Source Operand(s)
Destination Operand(s)
Operation
(op1) ← (op1)
Description
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.
CPU Flags
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.
Encoding
Mnemonic
ORB Rb
ORB Rb
ORB Rb
ORB Rb
ORB mem , reg
ORB reg , #data8
ORB reg , mem
User Manual
Logical Instructions
ORB op1, op2
op1, op2 → BYTE
op1 → BYTE
∨
(op2)
E Z
* *
, #data3
n
, Rb
n m
, [Rw +]
n i
, [Rw ]
n i
Detailed Instruction Description
Logical OR
V C
0 0
Format
79 n:0###
71 nm
79 n:11ii
79 n:10ii
75 RR MM MM
77 RR ## xx
73 RR MM MM
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User Manual
C166S V2
ORB
N
*
Bytes
2
2
2
2
4
4
4
V 1.7, 2001-01