01.mdx

fork	Frontier
group	Stop and Arithmetic Operations

Index 1 is top of the stack. See PUSH.

Stack input

0. a: first integer value to add.
1. b: second integer value to add.

Stack output

0. a + b: integer result of the addition modulo 2²⁵⁶.

Examples

*	Input	Output	*	*	Input	Output
1	10	20	*	1	0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF	0
2	10		*	2	1

Reproduce in playground.

Error cases

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

• Not enough gas.
• Not enough values on the stack.