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.

1 files changed, 1 insertions, 0 deletions

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
 }