4) a) In a basic computer: An instruction is shown as below at address 052H. 0 AND 094H Accumulator content is A235H and the memory word at the address 094H is the operand B863H. Follow through the instruction cycle and define the contents of PC, AR, DR, AC, IR at the end of the execute phase. Repeat the problem for the other memory reference instructions. Show the results on a table and explain exactly how they are obtained. b) The contents of memory locations at address 3AF, 32E and 9AC are 932E, 09AC and 8B9F. The contents of Program counter and Accumulator are 3 AF and 7EC3. 1-Define the instruction which will be fetched and executed next. 2-Define the binary operation performed in Accumulator when the instruction is executed? 3-Define the contents of IR, PC, AC, DR, AR, (in Hex) and the values of I, E and SC in binary at the end of the instruction cycle