# title
ARM Architecture Reference Manual Thumb-2 Supplement

# topic.label
ARM Architecture Reference Manual Thumb-2 Supplement

# metadata.contentDescription
The purpose of this manual is to describe Thumb-2, its Instruction Set Architecture (ISA), and the changes to the programmers' model it introduces. This document is now RETIRED. Please refer to the Arm Architecture Reference Manual for the A-, R- or M-profile architecture depending on your implementation.