M166 Datasheet, PDF (115/127 Pages) Siemens Semiconductor Group – C16x Family of Siemens 16-Bit CMOS Single-Chip Microcontrollers

30Mar98@15:00h
C166 Family Instruction Set
Instruction Description
XORB
Logical Exclusive OR
XORB
Syntax
Operation
Data Types
Description
XORB op1, op2
(op1) ← (op1) ⊕ (op2)
BYTE
Performs a bitwise logical EXCLUSIVE OR of the source operand speci-
fied 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
XORB
XORB
XORB
XORB
XORB
Rb_n, Rb_m
Rb_n, [Rw_i]
Rb_n, [Rw_i+]
Rb_n, #data3
reg, #data16
XORB reg, mem
XORB mem, reg
Format
51 nm
59 n:10ii
59 n:11ii
59 n:0###
57 RR ## xx
53 RR MM MM
55 RR MM MM
Bytes
2
2
2
2
4
4
4
Semiconductor Group
115
Version 1.2, 12.97