Справочник Пользователя для Mitsubishi Electronics QCPU

7-285

POWD(P)

.12 Special function

instructions

.12.18 Exponentiation

operation on

floating-

point

ata (Single prec

ision) (

OWD(

))

7.12.18

Exponentiation operation on floating-point data
(Single precision) (POWD(P))

POWD(P)

*1: Available only for real number

Function

(1) This instruction raises the 64-bit floating-point data type real number specified by

to the

number nth specified by

power, and then stores the operation result into the device

specified by

(2) The following shows the values to be specified by and stored into

0, 2

-1022

| Set values (Storage values) | < 2

1024

(3) If the value resulted from the operation is 0 or an underflow occurs, the result will be

processed as 0.

QnU(D)(H)CPU: The serial number (first five digits) is "10102" or later.
QnUDE(H)CPU: The serial number (first five digits) is "10102" or later.

: Exponentiation recipient data or head number of the devices where the exponentiation recipient data are

stored (real number)

: Exponentiation data or head number of the devices where the data are stored (real number)

: Head number of the devices where the operation result will be stored (real number)

Setting

Data

Internal Devices

R, ZR

Constants

Other

Bit

Word

Bit

Word

––

Basic

Process

High

performance

Redundant

Ver.

Universal

POWD

POWDP

POWD

POWDP

Command

64-bit floating-point data type real number

raised to the power of

is carried out.

Exponentiation recipient data

Exponentiation data

……… ×

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1

＋3

＋2

＋1