OP_0NOTEQUAL - Testing for Non-Zero

6. OP_0NOTEQUAL — Testing for Non-Zero

Opcode Reference

Opcode:     OP_0NOTEQUAL
Hex:        0x92
Decimal:    146
Input:      a
Output:     0 if a == 0, else 1

Overview

OP_0NOTEQUAL is essentially the boolean identity function for numeric values. It returns 1 if the input is non-zero, and 0 if the input is zero. It is the logical complement of OP_NOT.

Truth Table

``` Input | Output