Consider the following program written in assembly language.

Program 1
Memory Address	Instruction
000	Load 004
001	Add 005
002	Store 003
003	Jump 003
004	Hex 12BF
005	Hex 5D41

Assume that the computer has just executed the first instruction of the program shown above, and is going to execute Add 005.

Complete the sequence of RTLs (microinstructions) in this cycle. Then perform a trace of the execution of the instruction within one fetch-decode-execute cycle. The initial values of the registers are shown below.

Time step	Stage	RTL	PC	IR	MAR	MBR	AC
start	(init. value)		001	1004	004	12BF	12BF
1	Fetch	?
2		?
3		?
4	Decode	?
5	Get operand	?
6		?
7	Execute	?