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authorWei-Ning Huang <w@dexon.org>2018-10-18 11:38:05 +0800
committerJimmy Hu <jimmy.hu@dexon.org>2018-11-09 13:31:14 +0800
commit433aebb7c91acf6d364acd76f6018dc1b4f847af (patch)
tree755cb38bb4ec4c873cc86c537200d4cfa1b1b83f /libevmasm/Instruction.cpp
parent91c1c3ada94f983f71938fba5abb570207acc248 (diff)
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Add opcode RAND supportv0.4.25
DEXON has a built-in on chain random oracle that allow one to retrieve a random variable. Add `rand` solidity variable is introduced to load the random variable onto the stack.
Diffstat (limited to 'libevmasm/Instruction.cpp')
-rw-r--r--libevmasm/Instruction.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/libevmasm/Instruction.cpp b/libevmasm/Instruction.cpp
index f9bbad2c..05669feb 100644
--- a/libevmasm/Instruction.cpp
+++ b/libevmasm/Instruction.cpp
@@ -57,6 +57,7 @@ const std::map<std::string, Instruction> dev::solidity::c_instructions =
{ "MULMOD", Instruction::MULMOD },
{ "SIGNEXTEND", Instruction::SIGNEXTEND },
{ "KECCAK256", Instruction::KECCAK256 },
+ { "RAND", Instruction::RAND },
{ "ADDRESS", Instruction::ADDRESS },
{ "BALANCE", Instruction::BALANCE },
{ "ORIGIN", Instruction::ORIGIN },
@@ -200,6 +201,7 @@ static const std::map<Instruction, InstructionInfo> c_instructionInfo =
{ Instruction::MULMOD, { "MULMOD", 0, 3, 1, false, Tier::Mid } },
{ Instruction::SIGNEXTEND, { "SIGNEXTEND", 0, 2, 1, false, Tier::Low } },
{ Instruction::KECCAK256, { "KECCAK256", 0, 2, 1, true, Tier::Special } },
+ { Instruction::RAND, { "RAND", 0, 0, 1, false, Tier::High } },
{ Instruction::ADDRESS, { "ADDRESS", 0, 0, 1, false, Tier::Base } },
{ Instruction::BALANCE, { "BALANCE", 0, 1, 1, false, Tier::Balance } },
{ Instruction::ORIGIN, { "ORIGIN", 0, 0, 1, false, Tier::Base } },