GE 90-30/20/Micro manual Xor, Shl, Shr, Rol, Ror, Bset, Bclr, Bpos

4

The following bit operation functions are described in this section:

Abbreviation	Function	Description	Page
AND	Logical AND	If a bit in bit string I1 and the corresponding bit	4-49
		in bit string I2 are both 1, place a 1 in the
		corresponding location in output string Q.
OR	Logical OR	If a bit in bit string I1 and/or the corresponding	4-49
		bit in bit string I2 are both 1, place a 1 in the
		corresponding location in output string Q.
XOR	Logical exclusive	If a bit in bit string I1 and the corresponding bit	4-51
	OR	in string I2 are different, place a 1 in the
		corresponding location in the output bit string.
NOT	Logical invert	Set the state of each bit in output bit string Q to the	4-53
		opposite state of the corresponding bit in bit string I1.
SHL	Shift Left	Shift all the bits in a word or string of words to the left	4-55
		by a specified number of places.
SHR	Shift Right	Shift all the bits in a word or string of words to the right	4-55
		by a specified number of places.
ROL	Rotate Left	Rotate all the bits in a string a specified number of	4-58
		places to the left.
ROR	Rotate Right	Rotate all the bits in a string a specified number of	4-57
		places to the right.
BTST	Bit Test	Test a bit within a bit string to determine whether that	4-60
		bit is currently 1 or 0.
BSET	Bit Set	Set a bit in a bit string to 1.	4-62
BCLR	Bit Clear	Clear a bit within a string by setting that bit to 0.	4-62
BPOS	Bit Position	Locate a bit set to 1 in a bit string.	4-64
MSKCMP	Masked Compare	Compare the contents of two separate bit strings with	4-66
		the ability to mask selected bits (available for Release
		4.5 or higher CPUs).

4-48 Series 90-30/20/Micro Programmable Controllers Reference Manual–September 1998 GFK-0467K