From e200135b366cb74ad58013dbfacaee482e035eeb Mon Sep 17 00:00:00 2001
From: Yohan Graterol <yohangraterol92@gmail.com>
Date: Sat, 2 Dec 2017 20:48:21 -0500
Subject: [PATCH] Increase 10x the gas price for Callisto

---
 params/config.go    |  3 +++
 params/gas_table.go | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/params/config.go b/params/config.go
index 7f960272ad..82210b6975 100644
--- a/params/config.go
+++ b/params/config.go
@@ -200,6 +200,7 @@ func (c *ChainConfig) IsCallisto(num *big.Int) bool {
 // GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).
 //
 // The returned GasTable's fields shouldn't, under any circumstances, be changed.
+// Callisto has a 10x more cost in gas
 func (c *ChainConfig) GasTable(num *big.Int) GasTable {
 	if num == nil {
 		return GasTableHomestead
@@ -209,6 +210,8 @@ func (c *ChainConfig) GasTable(num *big.Int) GasTable {
 		return GasTableEIP158
 	case c.IsEIP150(num):
 		return GasTableEIP150
+	case c.IsCallisto(num):
+		return GasTableCallisto
 	default:
 		return GasTableHomestead
 	}
diff --git a/params/gas_table.go b/params/gas_table.go
index 4969382b1b..4231b22eb8 100644
--- a/params/gas_table.go
+++ b/params/gas_table.go
@@ -72,4 +72,17 @@ var (
 
 		CreateBySuicide: 25000,
 	}
+
+	GasTableCallisto = GasTable{
+		ExtcodeSize: 7000,
+		ExtcodeCopy: 7000,
+		Balance:     4000,
+		SLoad:       2000,
+		Calls:       7000,
+		Suicide:     50000,
+		ExpByte:     100,
+
+		CreateBySuicide: 250000,
+	}
+
 )