ARM VERSION 1.2 - Manual (Page 151)

ARM Instruction Reference
ARM DUI 0068B Copyright © 2000, 2001 ARM Limited. All rights reserved. 4-41
Examples
MUL r10,r2,r5
MLA r10,r2,r1,r5
MULS r0,r2,r2
MULLT r2,r3,r2
MLAVCS r8,r6,r3,r8
Incorrect examples
MUL r15,r0,r3 ; use of r15 not allowed
MLA r1,r1,r6 ; Rd cannot be the same as Rm