From d3abce82272b494a21fc55c0919e139a20144a11 Mon Sep 17 00:00:00 2001
From: Kaiziron <16369212+Kaiziron@users.noreply.github.com>
Date: Fri, 14 Apr 2023 10:49:16 +0800
Subject: [PATCH] Update README.md

Added PUSH0 opcode (EIP-3855)
---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7187738..8a9d27c 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,8 @@ The gas information is a work in progress. If an asterisk is in the Gas column,
 | `0x59` | MSIZE | Get the size of active memory in bytes | - | 2 |
 | `0x5a` | GAS | Get the amount of available gas, including the corresponding reduction for the cost of this instruction | - | 2 |
 | `0x5b` | JUMPDEST | Mark a valid destination for jumps | - | 1 |
-| `0x5c` - `0x5f` | Unused | - |
+| `0x5c` - `0x5e` | Unused | - |
+| `0x5f` | PUSH0 | Place the constant value 0 on stack | - | 2 |
 | `0x60` | PUSH1 | Place 1 byte item on stack | - | 3 |
 | `0x61` | PUSH2 | Place 2-byte item on stack | - | 3 |
 | `0x62` | PUSH3 | Place 3-byte item on stack | - | 3 |