Non-copy shared stack and register set device and dual language processor structure using the same

The present invention provides a non-copy shared stack and register set device and a dual language processor structure using the same, which achieve non-copy data share by controlling a selector and the stack pointer of a data stack. The selector is connected to each item of the data stack and a register of the register set, such that, when the register set requires to exchange data with the data stack, the selector is controlled and the stack pointer is updated thereby the selector switching the stack item pointed by the stack pointer to be connected to the register.