opcodes cost gas. More in depth [1] and in the yellow paper linked in the stack exchange question. [1] http://ethereum.stackexchange.com/questions/52/how-were

opcodes cost gas. More in depth [1] and in the yellow paper linked in the stack exchange question. [1] http://ethereum.stackexchange.com/questions/52/how-were-gas-costs-chosen-for-the-ethereum-virtual-machine-instructions/132 http://ethereum.stackexchange.com/questions/52/how-were-gas-...