Toshiba PROSEC T1 T1S, 6F3B0250 user manual 188

6F3B0250
188 T1/T1S User’s Manual
7. Instructions
FUN 075 DSR Bi-directional shif t register
Expression
Data input - D DSR Q - Output
Shift input - S (
n
)
Enable input - E
Direction input - L
A
Function
While t he enable input ( E) is O N, this instruction shifts the dat a of the bit table, size
n
starting with
A
,
1 bit when the shift input (S) is ON. The shift direction is determined by the state of the direction input
(L).
When L is O FF, t he direction is right ( lower address dir ect ion) .
When L is O N, the direction is left (upper addr ess dir ect ion) .
The state of the data input (D) is stored in the highest bit if right shift, and stored in the lowest bit
A
if left
shift . The pushed out bit state is stored in the car r y flag (CF = S050).
When t he enable input ( E) is O FF, all bits in the table and the carry flag ar e reset to OFF.
Execution condition
Enable
input Operation Output CF
OFF Resets all bits in the bit table OFF Reset
ON S = ON L = ON Shift left execution Hi
g
hest bit state Set or reset
L = OFF Shift ri
g
ht execution Lowest bit state Set or reset
S = OFF No execution Hi
g
hest bit state -
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Leadin
g
device ÖÖÖ
n
Device size 1 - 64
Example
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