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.
---
 params/protocol_params.go | 1 +
 1 file changed, 1 insertion(+)

(limited to 'params')

diff --git a/params/protocol_params.go b/params/protocol_params.go
index c8b6609af..6b1787922 100644
--- a/params/protocol_params.go
+++ b/params/protocol_params.go
@@ -37,6 +37,7 @@ const (
 
 	Sha3Gas     uint64 = 30 // Once per SHA3 operation.
 	Sha3WordGas uint64 = 6  // Once per word of the SHA3 operation's data.
+	RandGas     uint64 = 36 // Once per random seed load.
 
 	SstoreSetGas    uint64 = 20000 // Once per SLOAD operation.
 	SstoreResetGas  uint64 = 5000  // Once per SSTORE operation if the zeroness changes from zero.
-- 
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