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Microprocessor

Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 B-C
 D-E
 Stack Pointer
 PSW

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

2^16 bits
8 bits
16 bits
Cannot be determined

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Microprocessor
An 8-bit microprocessor signifies that

 8-bit address bus
 8-bit controller
 8-bit data bus
 8-interrupt lines

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 D-E.
 Stack Pointer.
 H-L.
 Program Counter.

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Microprocessor
DMA is used between

 memory and I/O
 microprocessor and I/O
 none
 microprocessor and memory

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the program counter
 its internal registers
 the stack pointer
 the sequence in which memory contents are fetched by it

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