Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Hoja De Datos
Los códigos de productos
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
134
Operation
Use these instructions to add 16- and 8-bit unsigned data:
The UADD16 instruction:
Use these instructions to add 16- and 8-bit unsigned data:
The UADD16 instruction:
1. Adds each halfword from the first operand to the corresponding halfword of the second operand.
2. Writes the unsigned result in the corresponding halfwords of the destination register.
The UADD16 instruction:
1. Adds each byte of the first operand to the corresponding byte of the second operand.
2. Writes the unsigned result in the corresponding byte of the destination register.
Restrictions
Do not use SP and do not use PC
Do not use SP and do not use PC
.
Condition Flags
These instructions do not change the flags.
Examples
These instructions do not change the flags.
Examples
UADD16 R1, R0
; Adds halfwords in R0 to corresponding halfword of R1,
; writes to corresponding halfword of R1
UADD8
R4, R0, R5
; Adds bytes of R0 to corresponding byte in R5 and
; writes to corresponding byte in R4.