# ?What happens when OP\_IF encounters a zero value at the top of the stack? * [ ] Script execution terminates with an error * [x] The code block between OP\_IF and OP\_ENDIF (or OP\_ELSE) is skipped * [ ] The code block is executed regardless of the value * [ ] The zero is converted to TRUE and the block executes Note to learners: OP\_IF treats zero as FALSE and skips the code block, jumping to OP\_ELSE (if present) or OP\_ENDIF. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://hub.bsvblockchain.org/higher-learning/bsv-academy/bsv-opcodes/bitwise-transform/what-happens-when-op_if-encounters-a-zero-value-at-the-top-of-the-stack.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.