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
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
170
12.6.8 Packing and Unpacking Instructions
The table below shows the instructions that operate on packing and unpacking data.
Table 12-23.
Packing and Unpacking Instructions
Mnemonic
Description
PKH
Pack Halfword
SXTAB
Extend 8 bits to 32 and add
SXTAB16
Dual extend 8 bits to 16 and add
SXTAH
Extend 16 bits to 32 and add
SXTB
Sign extend a byte
SXTB16
Dual extend 8 bits to 16 and add
SXTH
Sign extend a halfword
UXTAB
Extend 8 bits to 32 and add
UXTAB16
Dual extend 8 bits to 16 and add
UXTAH
Extend 16 bits to 32 and add
UXTB
Zero extend a byte
UXTB16
Dual zero extend 8 bits to 16 and add
UXTH
Zero extend a halfword