Not (NOT)

Op Code (Hex)	Extender	Operand 1	Operand 2	Operand [3-4]
NOT 108A		Receiver	Source

NOTI 188A	Indicator options	Receiver	Source	Indicator targets

NOTB 1C8A	Branch options	Receiver	Source	Branch targets

Operand 1: Character variable scalar or numeric variable scalar.

Operand 2: Character variable scalar or numeric variable scalar.

Operand 3-4:

Branch Form-Branch point, instruction pointer, relative instruction number, or absolute instruction number.
Indicator Form-Numeric variable scalar or character variable scalar.

Short forms

Op Code (Hex)	Extender	Operand 1	Operand [2-3]
NOTS 118A		Receiver/Source

NOTIS 198A	Indicator options	Receiver/Source	Indicator targets

NOTBS 1D8A	Branch options	Receiver/Source	Branch targets

Operand 1: Character variable scalar or numeric variable scalar.

Operand 2-3:

Branch Form-Branch point, instruction pointer, relative instruction number, or absolute instruction number.
Indicator Form-Numeric variable scalar or character variable scalar.

Description: The Boolean not operation is performed on the string value in the source operand. The resulting string is placed in the receiver operand.

The operands may be character or numeric scalars. They are both interpreted as bit strings. Substringing is supported for both character and numeric operands.

The length of the operation is equal to the length of the source operand.

The bit values of the result are determined as follows:

Source Bit	Result Bit
0	1
1	0

The result value is then placed (left-adjusted) in the receiver operand with truncating or padding taking place on the right. The pad value used in this instruction is a hex 00 byte.

Substring operand references that allow for a null substring reference (a length value of zero) may be specified for operands 1 and 2. The effect of specifying a null substring reference for the source operand is that the result is all zero and the instruction's resultant condition is zero. When a null substring reference is specified for the receiver, a result is not set and the instruction's resultant condition is zero regardless of the value of the source operand.

When the receiver operand is a numeric variable scalar, it is possible that the result produced will not be a valid value for the numeric type. This can occur due to padding with hex 00, due to truncation, or due to the resultant bit string produced by the instruction. The instruction completes normally and signals no exceptions for these conditions.

Resultant Conditions:

Zero-The bit value for the bits of the scalar receiver operand is either all zero or a null substring reference is specified for the receiver.
Not zero-The bit value for the bits of the scalar receiver operand is not all zero.

Authorization Required

None

Lock Enforcement

None

Exceptions

06 Addressing

0601 Space Addressing Violation
0602 Boundary Alignment
0603 Range

08 Argument/Parameter

0801 Parameter Reference Violation

10 Damage Encountered

1004 System Object Damage State
1044 Partial System Object Damage

1C Machine-Dependent

1C03 Machine Storage Limit Exceeded

20 Machine Support

2002 Machine Check
2003 Function Check

22 Object Access

2201 Object Not Found
2202 Object Destroyed
2203 Object Suspended
2208 Object Compressed
220B Object Not Available

24 Pointer Specification

2401 Pointer Does Not Exist
2402 Pointer Type Invalid

2C Program Execution

2C04 Branch Target Invalid

2E Resource Control Limit

2E01 User Profile Storage Limit Exceeded

36 Space Management

3601 Space Extension/Truncation

44 Protection Violation

4401 Object Domain or Hardware Storage Protection Violation
4402 Literal Values Cannot Be Changed