6F3B0250

7. Instructions

FUN 078

RTR1

1 bit rotate right

Expression

Input -[ RTR1 A ]- Output

Function

When the input is ON, the data of register A is rotated 1 bit to the right (LSB direction). The pushed out bit state is stored in the left most bit (MSB) and in the carry flag (CF = S050). After the operation, if the right most bit (LSB) is ON, the output is turned ON.

Execution condition

Input

 

Operation

Output

CF

OFF

No execution

OFF

-

ON

Execution

When LSB = 1

ON

Set or reset

 

 

When LSB = 0

OFF

Set or reset

Operand

 

Name

 

 

Device

 

 

 

 

 

 

Register

 

 

 

 

Constant

Index

 

 

X

Y

R

S

T.

C.

XW

YW

RW

SW

T

C

D

I

J

K

 

 

A

Operation data

 

 

 

 

 

 

 

Ö

Ö

Ö

Ö

Ö

Ö

Ö

Ö

Ö

 

Ö

Example

When X007 is changed from OFF to ON, the data of RW15 is rotated 1 bit to the right.

The figure below shows an operation example.

 

(MSB)

 

 

 

 

 

 

 

 

 

 

 

 

(LSB)

 

 

F E D C B A 9 8 7 6 5 4 3 2 1 0

RW15

 

0

1

0

0

0

0

1

0

1

0

0

0

1

0

1

0

 

RW15 0 0 1 0 0 0 0 1 0 1 0 0 0 1 0 1 (Result)

CF

0

R001 is turned ON

190 T1/T1S User’s Manual

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Toshiba PROSEC T1 T1S, 6F3B0250 user manual RTR1, Bit rotate right