Opcodes · bitwise · enabled

OP_INVERT (0x83)

Flips every bit of the top item (bitwise NOT). Disabled since 2010 and re-enabled on BCH in May 2026.

Verified Sep 26, 2026

Stack in → out: x → ~x
Since: May 2026 (Layla): loops, functions, bitwise ops and Pay-to-Script
Cost: Base instruction cost 100 plus the byte length of the pushed result (2025 VM limits).
Bitcoin status: Disabled in Bitcoin (BTC)Disabled since 2010; an OP_SUCCESS code in Tapscript.

Example

<0x0f> OP_INVERT <0xf0> OP_EQUAL

Step through it opcode by opcode in Bitauth IDE, the in-browser BCH VM debugger.