Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

Product codes
ATSAM4S-WPIR-RD
Page of 1231
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
174
3. Adds the signed or zero extended value to the word or corresponding halfword of Rn and writes the result in 
Rd
.
Restrictions
Do not use SP and do not use PC.
Condition Flags
These instructions do not affect the flags.
Examples
SXTAH
R4, R8, R6, ROR #16 ; Rotates R6 right by 16 bits, obtains bottom
; halfword, sign extends to 32 bits, adds
; R8,and writes to R4
UXTAB
R3, R4, R10
; Extracts bottom byte of R10 and zero extends
; to 32 bits, adds R4, and writes to R3.