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Microprocessor

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

 DCX Rp
 XRA R
 ORA R
 DCR R

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Microprocessor
The five flags in 8085 are designated as

D, Z, S, P, AC
Z, CY, S, D, AC
Z, CY, S, P and AC
Z, C, S, P, AC

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 6
 10
 8
 4

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Microprocessor
Which of the following is type declaration statement in C?

king = horse + 1
int bar
s = s + 1
prin = prin * prin

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Microprocessor
The number of status flags present in 8085 microprocessor are

 5
 16
 10
 8

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 0FFF H and 0FFE H
 0FFE H and 0FFF H
 1000 H and 1001 H

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