Consider how to implement a mutex lock using an atomic hardware instruction in 8051. Look up the JBC bit, rel instruction in the 8051 instruction set, which says JBC executes the jump if the addressed bit is set, and also clears the bit. Thus a flag can be tested and cleared in one operation. a.Explain how you should interpret the bit value when using the JBC instruction? Does the value 0 or 1 encode locked or unlocked state? What value would you initialize the bit b. write a 8051 assembly code fragment to use JBC to acquire the mutex. You can declare your own labels as branch targets if needed.