Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Wsfr, Word Shift Right

3 . Instruction Set

API

36

Mnemonic		Operands	Function
WSFR	P		Word Shift Right

Controllers

ES2/EX2	SS2	SA2	SX2
		SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K

H

KnX

KnY

KnM

KnS

T

C

D

E

F

WSFR, WSFRP: 9 steps

S

*

*

*

*

*

*

*

D

*

*

*

*

*

*

n1

*

*

n2

*

*

PULSE

16-bit

32-bit

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

SE

SE

SE

Operands:

S: Start No. of source device D: Start No. of destination device

n1: Length of data to be

shifted n2: Number of devices to be shifted as a group

Explanations:

1.This instruction performs a right shift from source device of n2 registers starting from S to destination device of n1 registers starting from D.

2.This instruction is generally used in pulse execution mode (WSFRP).

3.The type of devices designated by S and D has to be the same, e.g. KnX, KnY, KnM, and KnS as a category and T, C, and D as another category

4.Provided the devices designated by S and D belong to Kn type, the number of digits of Kn in S and D has to be the same.

5.Valid range of operand n1, n2 : 1≤ n2 ≤ n1 ≤512

Program Example 1:

1.When X0 is triggered, WSFRP instruction shifts D10~D13 into data stack D20~D35 and D20~D35 also shift to the right with a group of 4 registers.

2.The figure below illustrates the right shift of the registers in one scan.

n D23~D20			→	Carry
o D27~D24			→	D23~D20
p D31~D28			→	D27~D24
q D35~D32			→	D31~D28
r D13 ~D10			→	D35~D32	completed
	X0			D10	D20	K16
		WSFRP					K4

4 registers in one group shift to the right

D13

D12

D11

D10

5

D35

D34

D33

D32

D31

D30

D29

D28

D27

D26

D25

D24

D23

D22

D21

D20

Carry

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