Alu Division Support Features - Analog Devices ADSP-BF53x Blackfin Reference

Arithmetic Logic Unit (ALU)
Table 2-9. ALU Instruction Summary (Cont'd)
Instruction
Dreg_lo = EXPADJ ( Dreg,
Dreg_lo ) (V) ;
Dreg_lo = EXPADJ
(Dreg_lo_hi, Dreg_lo);
Dreg = Dreg & Dreg ;
Dreg = ~ Dreg ;
Dreg = Dreg | Dreg ;
Dreg = Dreg ^ Dreg ;
Dreg =– Dreg ;

ALU Division Support Features

The ALU supports division with two special divide primitives. These
instructions (
DIVS
tional (error checking), addition/subtraction/division algorithm.
The division can be either signed or unsigned, but both the dividend and
divisor must be of the same type. Details about using division and pro-
gramming examples are available in
2-34 ADSP-BF53x/BF56x Blackfin Processor Programming Reference
ASTAT Status Flags
AZ AN AC0
AC0_COPY
AC1
– – –
– – –
* * **
* * **
* * **
* * **
* * *
, ) let programs implement a non-restoring, condi-
DIVQ
Chapter 15, "Arithmetic Operations."
AV0 AV1 V
AV0S AV1S V_COPY
VS
– – –
– – –
– – **/–
– – **/–
– – **/–
– – **/–
– – *
AQ
–
–
–
–
–
–
–