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软件类英文笔试题


11. What will be the output of the follow C code?


define product(x) (x*x)

main()


{


int i = 3, j, k;


j = product(i );


k = product( i);


printf(%d %d,j,k);


}


12. Simplify the following Boolean expression!((i ==12) || (j 15))


13. How many flip-flop circuits are needed to divide by 16?


14. Provides 3 properties that make an OS, a RTOS?


15. What is pre-emption?


16. Assume the BC register value is 8538H, and the DE register value is 62A5H.Find the value of register BC after the following assembly operations:


MOV A,C


SUB E


MOV C,A


MOV A,B


SBB D


MOV B,A


17.In the Assembly code shown below


LOOP: MVI C,78H


DCR C


JNZ LOOP


HLT


How many times is the DCR C Operation executed?


18.Describe the most efficient way(in term of execution time and code size) to divide a number by 4 in assembly language


19.what value is stored in m in the following assembly language code fragment if n=7?


LDAA #n


LABEL1: CMPA #5


BHI L3

 


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