ARM VERSION 1.2 - Manual (Page 222)

Thumb Instruction Reference
5-28 Copyright © 2000, 2001 ARM Limited. All rights reserved. ARM DUI 0068B
5.3.4 MOV, MVN, and NEG
Move, Move NOT, and Negate.
Syntax
MOV Rd, #expr
MOV Rd, Rm
MVN Rd, Rm
NEG Rd, Rm
where:
Rd is the destination register.
expr is an expression that evaluates (at assembly time) to an integer in the
range 0-255.
Rm is the source register.
Usage
The MOV instruction places #expr , or the value from Rm , in Rd .
The MVN instruction takes the value in Rm , performs a bitwise logical NOT operation on
the value, and places the result in Rd .
The NEG instruction takes the value in Rm , multiplies it by –1, and places the result in Rd .
Restrictions
In MOV Rd,#expr , MVN , and NEG instructions, Rd and Rm must be in the range r0 to r7.
In MOV Rd, Rm instructions, Rd and Rm can be any register r0 to r15, but see Condition flags
on page 5-29.