2. Consider the MARIE program below. [5 marks]

a) List the hexadecimal code for each instruction. [1.5 marks]
b) Draw the symbol table. [1.5 marks]
c) What is the value stored in the AC when the program terminates? [2 marks]
Hex
Addr Label Instruction
100 Start, Load A
101 Add B
102 Store Temp
103 Load C
104 Add D
105 Add Temp
106 Store F
107 Output
108 HALT
109 A, DEC 5
10A B, DEC 3
10B C, DEC 4
10C D, DEC 13
10D E, DEC 3
10E Temp, HEX 00FD
10F F, HEX 00FE
3. Write code to implement the expression
F = (A+B) /(C*D*E) on 2-, 1- and 0-address machines. [6 marks]

 

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