Where can I get information on the ARM and Thumb Instruction Sets?

The main reference for instruction set information is the ARM Architecture Reference Manual (or "ARM ARM"). You can download the ARMv7 A&R Architecture Manual from our download center.

Hard copies can be purchased from your local or online bookstore (Addison-Wesley : ISBN 0-201-73719-1).

Another useful source of information is the RealView Compilation Tools Assembler Guide as provided with the RealView Developement Suite (RVDS).  The Software Development Tools Documentation pages of this website also contain the latest versions of the Assembler Guides (in PDF form). The latest version of this document includes instruction set information for ARM architecture v7 and earlier. (Earlier generations of this manual were also provided with the ARM Developer Suite - ADS).

In addition to the v5TE ARM ARM, the Instruction Set Information pages of this website contain some handy instruction set quick reference cards (in PDF form).

The ARM v7-M Architecture Application Level Reference Manual for the Cortex-M3 processor is now also available.