OP_2DROP

INFO

Opcode number: 109
Byte representation: 0x6d
Short description: Drop the top two items from the stack.

OP_2DROP is used to discard the top two items from the stack.

Operation

1. Pop the top item from the stack.
2. Pop the next item from the stack.

Use Cases

• Discarding Temporary Data: In scripts where temporary values are pushed onto the stack for interim calculations, OP_2DROP can be used to remove them once they are no longer needed.

Notes

• This opcode is part of a family of opcodes (OP_DROP, OP_2DROP, OP_2DUP, OP_3DUP, and a few others) designed for stack item management.

Examples

Example 1

Removing temporary values after use:

# ASM script
OP_1 OP_2 OP_2DROP

# Raw script
51526d

# Stack (before OP_2DROP)
2 1

# Stack (after OP_2DROP)
(empty)