Similar to OP_BOOLAND, OP_BOOLOR performs a logical OR operation on the top two items on the stack. If at least one of the items is nonzero, OP_BOOLOR pushes 1 (true); if both are 0, it pushes 0 (false). This opcode is useful in scripts that require a logical disjunction, where either of the conditions being true is sufficient.
OP_Code Walkthrough
Logical OR of the top two items of the stack
Pop Top Item a
Pop Top Item b
Compute logical OR of a and b
Push Result