In the description of the Hack machine language in chapter $4,$ it is stated that in well$-$written programs a C$-$instruction that may cause a jump should not contain a reference to M$,$ and vice versa. Discuss why this should be avoided.

Research the concept of interrupts in a computer. You may want to look into how the Z$80$ microprocessor handles interrupt. A good source of Z$80$ information is Zaks, R$.(1980).$ Programming the Z$80.$ Sybex. Download the pdf$.$

FYI, The Z$808$ bit microprocessor has been in production for forty years. Knowledge of the Z$80$ is a great lead$-$in for further study in more complicated machines.