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Microprocessor

Microprocessor
Register pair used to indicate memory

 W and Z
 B and C
 H and L
 D and E

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Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 PSW
 B-C
 Stack Pointer
 D-E

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Microprocessor
Total numbers of output pins in 8085 microprocessor are

 13
 27
 30
 40

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XTHL & DAD H
 PCHL & DAD D
 XCHG & DAD H
 XCHG & DAD B

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Microprocessor
The number of status flags present in 8085 microprocessor are

 5
 8
 10
 16

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Microprocessor
For a memory with a 16-bit address space, the addressability is

2^16 bits
16 bits
Cannot be determined
8 bits

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