From 6137f79f726e8ec6a282ee0ca4ed45c05020ed4c Mon Sep 17 00:00:00 2001
From: Wei-Ning Huang <w@cobinhood.com>
Date: Thu, 18 Oct 2018 13:12:16 +0800
Subject: core: vm: implement RAND opcode support

DEXON has a built-in on chain random oracle that allow one to retrieve a
random variable. Add a new opcode `RAND` to load the random variable
onto the stack.
---
 core/vm/evm.go | 1 +
 1 file changed, 1 insertion(+)

(limited to 'core/vm/evm.go')

diff --git a/core/vm/evm.go b/core/vm/evm.go
index e22acb81c..be2dabcf5 100644
--- a/core/vm/evm.go
+++ b/core/vm/evm.go
@@ -90,6 +90,7 @@ type Context struct {
 	GasLimit    uint64         // Provides information for GASLIMIT
 	BlockNumber *big.Int       // Provides information for NUMBER
 	Time        *big.Int       // Provides information for TIME
+	Randomness  []byte         // Provides information for RAND
 	Difficulty  *big.Int       // Provides information for DIFFICULTY
 }
 
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