Inovance H3U Series - Page 207

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4
4 Instructions4.5.4 Data Rotation and Shift
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Function
The 16 bits of the word with the carry ag in the element [D] are shifted n bit places to the right. n is a
number in the range 0 to 15.
When n ≥ 16, bits are shifted by a number of bit places calculated by n%16 (remainder). For example,
when n = 20, bits are shifted four bit places (20%16 = 4) to the right.
The 1/0 state of the (n – 1)th bit in [D] is written to the carry ag M8022. The n bits starting from the highest
bit in [D] are lled with 0s.
1 1
1
0 1 1
1 0
1 1
bit0
1
1 0
1
1 1 0
bit1bit15 bit14 bit13 bit12 bit11bit10 bit9 bit8 bit7 bit6 bit5 bit4 bit3 bit2
D
0 0
0
0 0 0
1 0
1 1
bit0
0
1
1 1 0
bit1bit15 bit14 bit13 bit12 bit11bit10 bit9 bit8 bit7 bit6 bit5 bit4 bit3 bit2
D
0
n=6
Changed to 0
Carry flag
M8022
An error is returned in the following condition. The error ag M8067 is set to ON to identify this error and
the error code is stored in D8067.
Error 6706 is returned when n < 0.
◆
Application
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Before execution of the instruction
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After execution of the instruction