Inovance H3U Series - Page 197

196
4
4 Instructions4.5.4 Data Rotation and Shift
ROL: Rotation left
◆
Overview
When driving conditions are met, the bit pattern in D is rotated K bit places to the left on every execution of
the ROL instruction. The higher bits that are rotated out of D ll the lower bits of D.
ROL D n
Rotation left Applicable model:
H3U
D
Operand to be
rotated
Address of the word element that stores the data
16-bit instruction
(5 steps)
ROL: Continuous
execution
ROLP: Pulse
execution
32-bit instruction (9
steps)
DROL: Continuous
execution
DROLP: Pulse
execution
n
Number of bit
places rotated
on every
execution
Value range: 1 ≤ n ≤ 16 (16-bit operation); 1 ≤ n ≤ 32
(32-bit operation)
◆
Operands
Operand
Bit Element Word Element
System·User System·User Bit Designation Indexed Address Constant
Real
Number
D X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
n X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
Note: The elements in gray background are supported.
◆
Function
The bit pattern in D is rotated n bit places to the left. The instruction of the pulse execution type is generally
used. When the 32-bit instruction is executed, the register variable occupies two consecutive units.
When KnY, KnM, and KnS are specied in D, only K4 (16-bit operation) and K8 (32-bit operation) are valid.
The status of the last bit rotated is copied to the carry ag.
Example:
Higher bits Higher bits
Higher bits
Right rotation
Lower bits
Lower bits
After every
execution
Lower bits
Lower bits
After every
execution
Higher bits
Left rotation
1 000000000010011
0 1 11000000000
M10
RORP D20 K3
M8022 0
n=3
1 0 1 1100000000000
1 000000000001011
M80221
n=4
M10
ROLP D20 K4
010