38.mdx

fork	group
Frontier	Environmental Information

Index 1 is top of the stack. See PUSH.

Notes

Each instruction occupies one byte. In the case of a PUSH instruction, the bytes that need to be pushed are encoded after that, it thus increases the codesize accordingly.

Stack output

0. size: byte size of the code.

Example

*	Input	Output
1		32

Reproduce in playground.

Error cases

The state changes done by the current context are reverted in those cases:

• Not enough gas.
• Stack overflow.