Question $1.$

A typical machine has $32-$bit IR and a total of $128$ different instructions. Show the instruction format for such a machine if it has one memory address. How many memory locations can this machine access?

Question $2.$

Assume a machine that has instructions of length $16$ bits. An instruction has $6$ bit operation code and $10$ bit memory address, assume that the machine has the following instructions, Load AC from memory Store AC to memory Add contents of memory to AC$,$ and save it into AC Assuming a memory that has $16-$bit locations,

A$.$ Assign an operation code for each instruction.

B$.$ Write a program $($sequence of instructions$)$ that adds the contents of Memory location $151$h to the contents of Memory location $150$h and stores the result in location $152$h$.$ If the program starts at location $100$h$,$ show the contents of the locations that carry the program.

C$.$ Show the contents of IR$,$ PC$,$ AC$,$ and Memory locations $150$h$,151$h$,$ and $152$h during execution $($after each fetch cycle and each execute cycle$).$ Initially, Location $150$h has the value $2$Bh and Location $151$h has the value A$1$h$.$

Question $3.$

For the machine described in question $2,$ assume a memory that has $8-$bit locations and a data bus of $16$ bits $($two locations can be transferred to the CPU at a time$).$

a$)$ How many memory locations the memory could have?

b$)$ Repeat part $($c$)$ in question $2.$