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Microprocessor

Microprocessor
Pick out the matching pair

 S0;S1;wait status
 SID; SIM
 HOLD; DMA
 READY; RIM

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Microprocessor
Each instruction in an assembly language program has the following fields 1. Label field 2. Mnemonic field 3. Operand field 4. Comment field What are the correct sequence of these fields?

 1, 3, 2 and 4
 2, 4, 1 and 3
 1, 2, 3 and 4
 2, 1, 4 and 3

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Microprocessor
Which of the following instruction will never affect the zero flag?

 XRA R
 DCX Rp
 ORA R
 DCR R

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Microprocessor
The number of status flags present in 8085 microprocessor are

 5
 10
 16
 8

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

-0
-1
+0
1

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Microprocessor
It is possible to copy a file in the same directory.

False
True

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