The partial list of opcodes for the machine are as follows

0001 = Load AC from memory

0010 = Store AC to memory

0011 = Add to AC from memory

0100 = load ac from I/O

0111= Store AC to I/O

in the following cases, the 12 bit address indentifies a particular I/O device. Show the program execution for the following program where the following instructions are executed from memory locations 300, 301, and 302.

A:Load AC from device 5

B:Add content of memory location 940( Assume that: Location 9440 contains a value of 4)

C: Store AC to device 6