6. In 8085 Program Status Word consists of

1. 1. accumulator contents

   
   
   

   2. flags

   
   
   

   3. both accumulator and flag

   
   
   

   4. status bits

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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7. Which of the following signal is used when a microprocessor wants to address the memory?

1. 1. IO/ M

   
   
   

   2. Status signals

   
   
   

   3. ALE

   
   
   

   4. HOLD and HLDA

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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8. SHIFT LEFT instruction causes all bits shifted from one position to the left with rightmost bit set to zero. The effect is to

1. 1. multiply by 2

   
   
   

   2. divide by 2

   
   
   

   3. SET the most significant bit

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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9. The selection of a microprocessor for an application is done keeping in mind
   

1. 1. speed compatibility of microprocessor with perip-herals

   
   
   

   2. the time critical behaviour of the application

   
   
   

   3. the size of program required to implement certain functions

   
   
   

   4. all of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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10. The microprocessor contains ROM chip which contains
    

1. 1. control function

   
   
   

   2. arithmetic functions

   
   
   

   3. instructions to execute data

   
   
   

   4. memory functions

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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