Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Instrukcja Użytkownika Pobierz pdf (Strona 128)

Appendix D Use of Application Instructions|DOP-EXIO Series

Revision March, 2008, Doc. Name: 2007PDD23000014 D-47

Mnemonic Operands Function

ROR D

Rotation Right

Bit Devices Word Devices

X Y M S K H KnX KnY KnM KnS T C D E F

       

 

y Note:

1. If D is used in device F, only 16-bit instruction is applicable.

2. If D is designated as KnY, KnM, and KnS, only K4 (16-bit) and K8

(32-bit) are valid.

3. Range of n: 1 ~ 16 (16-bit); 1 ~ 32 (32-bit)

16-bit instruction (5 Steps)

ROR

Continuous

execution

32-bit instruction (9 Steps)

DROR

Continuous

execution

y Flags: M1022 (Carry flag)

Operands:

: Device to be rotated

: Number of bits to be rotated in 1 rotation

Explanations:

This instruction rotates the device content designated by D to the right for n bits.

Program Example:

When X0 = Off→On, the 16 bits (4 bits as a group) in D10 will rotate to the right, as shown in the figure

below. The bit marked with

※ will be sent to carry flag M1022.

011 10 101 0 0111 001

010111001111001 0

higher bit lower bit

RORP

D10

Rotate to the right

16 bits

Carry

flag

Carry

flag

After one rotation

to the right

D10

1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 156 157

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