軟件測(cè)試類英文筆試題

時(shí)間：2020-10-15 09:59:23 筆試題目我要投稿

軟件測(cè)試類英文筆試題

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

軟件測(cè)試類英文筆試題

define product(x) (x*x)
main()

{

int i = 3, j, k;

j = product(i++);

k = product(++i);

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

}

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

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

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

5. What is pre-emption?

6. 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

7.In the Assembly code shown below

LOOP: MVI C,78H

DCR C

JNZ LOOP

HLT

How many times is the DCR C Operation executed?

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

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

LDAA #n

LABEL1: CMPA #5

BHI L3

BEQ L2

DECA

BRA L1

LABEL2: CLRA

LABEL3: STAA #m

10. What is the state of a process if a resource is not　available?

define a 365*24*60*60
11. Using the #define statement, how would you　declare a manifest constant that returns the number of seconds in a year? Disregard leap　years in your answer.

12. Interrupts are an important part of embedded　systems. Consequently, many compiler vendors offer an extension to standard C to support interrupts.Typically, the keyword is __interrupt. The followingroutine (ISR). Point out problems in the code.__interrupt double compute_area (double radius)

{

double area = PI * radius * radius;

printf(" Area = %f", area);

return area;

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軟件測(cè)試類英文筆試題