ARM VERSION 1.2 - Manual (Page 142)

ARM Instruction Reference
4-32 Copyright © 2000, 2001 ARM Limited. All rights reserved. ARM DUI 0068B
4.3.4 MOV and MVN
Move and Move Not.
Syntax
MOV{cond}{S} Rd, Operand2
MVN{cond}{S} Rd, Operand2
where:
cond is an optional condition code (see Conditional execution on page 4-4).
S is an optional suffix. If S is specified, the condition code flags are updated
on the result of the operation (see Conditional execution on page 4-4).
Rd is the ARM register for the result.
Operand2 is a flexible second operand. See Flexible second operand on page 4-24
for details of the options.
Usage
The MOV instruction copies the value of Operand2 into Rd .
The MVN instruction takes the value of Operand2 , performs a bitwise logical NOT
operation on the value, and places the result into Rd .
In certain circumstances, the assembler can substitute MVN for MOV , or MOV for MVN . Be
aware of this when reading disassembly listings. See Instruction substitution on
page 4-26 for details.
Condition flags
If S is specified, these instructions:
• update the N and Z flags according to the result
• can update the C flag during the calculation of Operand2 (see Flexible second
operand on page 4-24)
• do not affect the V flag.