Function opcodeOver

txscript/opcode.go:1323–1325

opcodeOver duplicates the item before the top item on the data stack. Stack transformation: [... x1 x2 x3] -> [... x1 x2 x3 x2]

(op *opcode, data []byte, vm *Engine)

//
// Stack transformation: [... x1 x2 x3] -> [... x1 x2 x3 x2]
func opcodeOver(op *opcode, data []byte, vm *Engine) error {
	return vm.dstack.OverN(1)
}

// opcodePick treats the top item on the data stack as an integer and duplicates
// the item on the stack that number of items back to the top.