A microprocessor configured to detect a branch to a dsp routine and to direct a dsp to execute said routine

摘要: A microprocessor configured to detect subroutine call instructions having a target address indicative of DSP function is provided. The detection such may be performed, for example, in an instruction decode unit within the microprocessor. Subroutine detected this manner are routed digital signal processor coupled near or possibly integrated into store indication that enabled. If not enabled, then executes original routines stored at instruction. Although as efficient performing function, program employing still operate properly absence DSP. In manner, computer system initially without included. user later decides upgrade with DSP, dispatch functions Until occurs, execute functions.