write down the algoritmics steps and the machine code to find the maximum of thr

Question

write down the algoritmics steps and the machine code to find the maximum of three numbers stored in memory cells 00,01 and 02.Store the maximum value at memory cell 03.The opcode table is given below.

Op-code Operand Description
1 RXY LOAD reg. R from cell XY
2 RXY LOAD reg. R with cell XY
3 RXY STORE reg. R at XY
4 0RS MOVE R To S.
5 NXY STORE ON TO CELL XY
6 RST ADD S AND T into R
7 RST SUB S and T into R. (R<- S - T)

8 RST OR S and T into R.
9 0ST LOAD reg. S from cell pointed by T
A RST XOR S and T into R.
B R0X ROTATE reg. R X times.
C 0XY JUMP to XY.
D RXY JUMP TO XY If R=Reg. 0.
E RXY JUMP TO XY If R>0.
F 000 HALT

<- means arrow

Explanation / Answer

; Program name: Maximum of three numbers.

; Code segment           ; start of the code segment.

     Load R1,[00]              ;Load register R1 with [00]

     Load R2,[01]              ; Load register R2 with [01]

     Load R3,[02]              ;Load register R3 with [02]

     Load R4,[03]              ;Load register R4 with [03]

      jmpLE R1<=R2, XX   ;Compare R1 With R2

      Move R1, R3               ; Move contents of R3 into R1

XY: Store R4, R1               ; store the result in R4

       Halt                             ; Halt the program

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