Byteop2P (Quad 8-Bit Average – Half-Word) - Analog Devices ADSP-BF53x Blackfin Reference

Instruction Overview
BYTEOP2P (Quad 8-Bit Average – Half-Word)
General Form
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (RNDL)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (RNDH)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (TL)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (TH)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (RNDL, R)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (RNDH, R)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (TL, R)
dest_reg = BYTEOP2P ( src_reg_0, src_reg_1 ) (TH, R)
Syntax
/* forward byte order operands */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (RNDL) ;
/* round into low bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (RNDH) ;
/* round into high bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (TL) ;
/* truncate into low bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (TH) ;
/* truncate into high bytes (b) */
/* reverse byte order operands */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (RNDL, R) ;
/* round into low bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (RNDH, R) ;
/* round into high bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (TL, R) ;
/* truncate into low bytes (b) */
Dreg = BYTEOP2P (Dreg_pair, Dreg_pair) (TH, R) ;
/* truncate into high bytes (b) */
18-24 ADSP-BF53x/BF56x Blackfin Processor Programming Reference