Overview of the basic mechanisms of a multi-bit microprocessor compatible with the AMD64 architecture

The article focuses on the necessary improvements to the microprocessors that are designed to operate computer systems in various extreme environmental conditions, especially space. Technical aspects of the process of changing the bit ratio (operating mode) of the microprocessor under the influence of aggressive environment are viewed. This effect is aimed at improving the reliability of the microprocessor, and for these purposes the mechanisms of the microprocessor as well as the coprocessor (as one of the components of modern microprocessors) are considered. The principle of dynamic control of read/write operations to the register is addressed, as well as new operations were considered - reducing the bit capacity of calculations, which implies changing the mode of operation of the microprocessor, and reducing the number of cores - “logical” isolation of the damaged core in the microprocessor from the operating functionality. A mechanism for separately storing floating point components of the IEEE-754 standard has been proposed for the coprocessor, and methods of implementation have been shown.