B&B Electronics WOP-2121V-N4AE - Manual - Manual (Page 424)

4 14
PM Designer Operation Manual
14-15
CHAPTER 14 USING MACROS
Bitwise Exclusive OR ( ^ )
Format P1 = P2 ^ P3 Data Type U/UD/B
Function Performs bitwise Exclusive OR operation of P2 and P3 and saves the results in P1.
P1 (I/E) The location to save the result.
P2,P3 (I/E/C) The operands
Example 1 W60 = 1111000000001111b
$U100 = 0000111100001111b ^ W60 (U) /* The value of $U100 is 1111111100000000b.*/
Example 2 B15 = $U1.2 ^ B14 (B) /*If both $U1.2 and B14 are 1(On) or 0(Off), the B15 is set to 0(Off).
Otherwise B15 is set to 1(On)*/
Left Shift ( << )
Format P1 = P2 << P3 Data Type U/UD
Function Shifts P2 to the left by P3 bits and saves the results in P1. The operation supports the logic shift
only.
P1 (I/E) The location to save the result.
P2 (I/E/C) The value or the location that holds the value to be shifted.
P3 (I/E/C) The number of bits to be shifted.
Example 1 $U100 = $U101 << 8 (U)
Example 2 W200 = W100 << $U10 (UD)
Right Shift ( >> )
Format P1 = P2 >> P3 Data Type U/UD
Function Shifts P2 to the right by P3 bits and saves the results in P1. The operation supports the logic shift
only.
P1 (I/E) The location to save the result.
P2 (I/E/C) The value or the location that holds the value to be shifted.
P3 (I/E/C) The number of bits to be shifted.
Example 1 $U100 = $U101 >> 8 (U)
Example 2 W200 = W100 >> $U10 (UD)
Logical AND ( && )
Format P1 = P2 && P3 Data Type B
Function Saves 1 in P1 if both P2 and P3 are 1, otherwise saves 0 in P1.
P1 (I/E) The bit to save the result.
P2,P3(I/E/C) The operands.
Example 1 $U100.0 = $U101.0 && $U101.1 (B)