Datasheet

143
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
These instructions do not affect the condition code flags.
Examples
SMLAL R4, R5, R3, R8 ; Multiplies R3 and R8, adds R5:R4 and writes to
; R5:R4
SMLALBT R2, R1, R6, R7 ; Multiplies bottom halfword of R6 with top
; halfword of R7, sign extends to 32-bit, adds
; R1:R2 and writes to R1:R2
SMLALTB R2, R1, R6, R7 ; Multiplies top halfword of R6 with bottom
; halfword of R7,sign extends to 32-bit, adds R1:R2
; and writes to R1:R2
SMLALD R6, R8, R5, R1 ; Multiplies top halfwords in R5 and R1 and bottom
; halfwords of R5 and R1, adds R8:R6 and writes to
;
R8:R6
SMLALDX R6, R8, R5, R1 ; Multiplies top halfword in R5 with bottom
; halfword of R1, and bottom halfword of R5 with
; top halfword of R1, adds R8:R6 and writes to
; R8:R6.