The Design and Implementation of Dynamic Translator in BTSUP System

To deal with the problem that old software cant be used because of the upgraded hardware in avionics system,BTASUP(Binary Translation for Avionics System Upgrade) is introduced.BTASUP that combines interpreter and dynamic translation can transparently execute the exercisable binary code of 1750A in PowerPC.Also the structure and theory of this system was introduced.The practical implementing way of dynamic translator,which is the important part of BTSUP,is paid more attention to in this paper.