<Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (July 2014) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (July 2014) </Td> </Tr> <P> The CPUID opcode is a processor supplementary instruction (its name derived from CPU IDentification) for the x86 architecture allowing software to discover details of the processor . It was introduced by Intel in 1993 when it introduced the Pentium and SL - enhanced 486 processors . </P> <P> By using the CPUID opcode, software can determine processor type and the presence of features (like MMX / SSE). The CPUID opcode is 0Fh, A2h (as two bytes, or A20Fh as a single word) and the value in the EAX register, and in some cases the ECX register, specifies what information to return . </P>

What is the assembly language command to read the intel cpu identification