1 Brakazahn

Ignou Ms-08 Assignment Solution Cs401

Question no. 1:

(a)  Assemble the following instructions and show the changes in given Accumulator register and flags after each instruction execution.                                                                                           (Marks 5)

MOV AL, 8Bh                       ; CF = ?, SF = ?, PF = ?, ZF = ?

ADD AL, 22h                         ; CF = ?, SF = ?, PF = ?, ZF = ?        

AND Al, 1000101b                ; CF = ?, SF = ?, PF = ?, ZF = ?

OR Al, 9Ah                            ; CF = ?, SF = ?, PF = ?, ZF = ?

XOR AL, 10101011b             ; CF = ?, SF = ?, PF = ?, ZF = ?

TEST AL, 2                            ; CF = ?, SF = ?, PF = ?, ZF = ?

CMP AL, 58                           ; CF = ?, SF = ?, PF = ?, ZF = ?

ADC AL, 11110000b             ; CF = ?, SF = ?, PF = ?, ZF = ?

SHR AL,2                               ; CF = ?, SF = ?, PF = ?, ZF = ?

Question no. 1 (b):                                                                                                                     (Marks 5)

Write a subroutine that can calculate the sum of an array and also save the result into DX.

( Array’s length is 20)

Question no. 2

Write an assembly language code to calculate the factorial of “7” using a subroutine and also attach the final snapshot of your AFD window.                       

                                                                                                                                                  ( Marks:10)

Глаза Стратмора сузились. - Странно. Я вчера говорил с .

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