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