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Microprocessor

Microprocessor
Identify the non-maskable interrupt from the following

 RST 7.5
 RST 4.5
 RST 5.5
 RST 6.5

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Microprocessor
If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory)

Increases by 2^(address bits)/addressability
Doubles
Halves
Remains unchanged

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

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 68000
 8085
 Z-80
 6502

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Microprocessor
A combinational PLD with a fixed AND array and a programmable OR array is called a

 PAL
 PROM
 PLD
 PLA

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 11111111
 None
 00000000
 00000001

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