feat: implement 0x3B - EXTCODESIZE Opcode

[Eikix]

Since	Group
Frontier	Environmental Information

Index 1 is top of the stack. See PUSH.

Stack input

1. address: 20-byte address of the contract to query.

Stack output

1. size: byte size of the code.

Example

	Input	Output
1	0x43a61f3f4c73ea0d444c5c1c1a8544067a86219b	32

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.

Gas

The static cost is 0. If the accessed address is warm, the dynamic cost is 100. Otherwise the dynamic cost is 2600. See section access sets.

Estimate your gas cost

State: 'address' is cold?

YesNo

Static gas + dynamic gas = 100

[Eikix]

Important update: we are gathering some bugs in the Kakarot v0 codebase, we need to make sure each issue and each PR in Kakarot-ssj is aware of the lists of known bugs. Look at this link everytime you take an issue and check your issue isn't targeted by a known bug.

[Eikix]

Important update: we are gathering some bugs in the Kakarot v0 codebase, we need to make sure each issue and each PR in Kakarot-ssj is aware of the lists of known bugs. Look at this tracking issue everytime you take an issue and check your issue isn't targeted by a known bug. Will add this reminder in many places to make sure we keep track of known bugs.