87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
|
package vm
|
||
|
|
|
||
|
|
import "math/big"
|
||
|
|
|
||
|
|
type req struct {
|
||
|
|
stack int
|
||
|
|
gas *big.Int
|
||
|
|
}
|
||
|
|
|
||
|
|
var _baseCheck = map[OpCode]req{
|
||
|
|
// Req stack Gas price
|
||
|
|
ADD: {2, GasFastestStep},
|
||
|
|
LT: {2, GasFastestStep},
|
||
|
|
GT: {2, GasFastestStep},
|
||
|
|
SLT: {2, GasFastestStep},
|
||
|
|
SGT: {2, GasFastestStep},
|
||
|
|
EQ: {2, GasFastestStep},
|
||
|
|
ISZERO: {1, GasFastestStep},
|
||
|
|
SUB: {2, GasFastestStep},
|
||
|
|
AND: {2, GasFastestStep},
|
||
|
|
OR: {2, GasFastestStep},
|
||
|
|
XOR: {2, GasFastestStep},
|
||
|
|
NOT: {1, GasFastestStep},
|
||
|
|
BYTE: {2, GasFastestStep},
|
||
|
|
CALLDATALOAD: {1, GasFastestStep},
|
||
|
|
CALLDATACOPY: {3, GasFastestStep},
|
||
|
|
MLOAD: {1, GasFastestStep},
|
||
|
|
MSTORE: {2, GasFastestStep},
|
||
|
|
MSTORE8: {2, GasFastestStep},
|
||
|
|
CODECOPY: {3, GasFastestStep},
|
||
|
|
MUL: {2, GasFastStep},
|
||
|
|
DIV: {2, GasFastStep},
|
||
|
|
SDIV: {2, GasFastStep},
|
||
|
|
MOD: {2, GasFastStep},
|
||
|
|
SMOD: {2, GasFastStep},
|
||
|
|
SIGNEXTEND: {2, GasFastStep},
|
||
|
|
ADDMOD: {3, GasMidStep},
|
||
|
|
MULMOD: {3, GasMidStep},
|
||
|
|
JUMP: {1, GasMidStep},
|
||
|
|
JUMPI: {2, GasSlowStep},
|
||
|
|
EXP: {2, GasSlowStep},
|
||
|
|
ADDRESS: {0, GasQuickStep},
|
||
|
|
ORIGIN: {0, GasQuickStep},
|
||
|
|
CALLER: {0, GasQuickStep},
|
||
|
|
CALLVALUE: {0, GasQuickStep},
|
||
|
|
CODESIZE: {0, GasQuickStep},
|
||
|
|
GASPRICE: {0, GasQuickStep},
|
||
|
|
COINBASE: {0, GasQuickStep},
|
||
|
|
TIMESTAMP: {0, GasQuickStep},
|
||
|
|
NUMBER: {0, GasQuickStep},
|
||
|
|
CALLDATASIZE: {0, GasQuickStep},
|
||
|
|
DIFFICULTY: {0, GasQuickStep},
|
||
|
|
GASLIMIT: {0, GasQuickStep},
|
||
|
|
POP: {0, GasQuickStep},
|
||
|
|
PC: {0, GasQuickStep},
|
||
|
|
MSIZE: {0, GasQuickStep},
|
||
|
|
GAS: {0, GasQuickStep},
|
||
|
|
BLOCKHASH: {1, GasExtStep},
|
||
|
|
BALANCE: {0, GasExtStep},
|
||
|
|
EXTCODESIZE: {1, GasExtStep},
|
||
|
|
EXTCODECOPY: {4, GasExtStep},
|
||
|
|
SLOAD: {1, GasStorageGet},
|
||
|
|
SSTORE: {2, Zero},
|
||
|
|
SHA3: {1, GasSha3Base},
|
||
|
|
CREATE: {3, GasCreate},
|
||
|
|
CALL: {7, GasCall},
|
||
|
|
CALLCODE: {7, GasCall},
|
||
|
|
JUMPDEST: {0, GasJumpDest},
|
||
|
|
SUICIDE: {1, Zero},
|
||
|
|
RETURN: {2, Zero},
|
||
|
|
}
|
||
|
|
|
||
|
|
func baseCheck(op OpCode, stack *stack, gas *big.Int) {
|
||
|
|
if r, ok := _baseCheck[op]; ok {
|
||
|
|
stack.require(r.stack)
|
||
|
|
|
||
|
|
gas.Add(gas, r.gas)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func toWordSize(size *big.Int) *big.Int {
|
||
|
|
tmp := new(big.Int)
|
||
|
|
tmp.Add(size, u256(31))
|
||
|
|
tmp.Div(tmp, u256(32))
|
||
|
|
return tmp
|
||
|
|
}
|