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Microprocessor

Microprocessor
How many bytes in a zero memory page should be reserved for vectors used by RST instructions?

 128.
 64.
 16.
 32.

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 both A and B.
 none of these.
 program counter.
 stack pointer.

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Microprocessor
A real number consists of

Integer part, fraction part along with positive or negative sign
None of these
Integer part and fraction part
Integer part

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Microprocessor
CALL instruction is a ______ instruction.

 3 bytes
 2 bytes
 1 bytes
 4 bytes

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 RIM
 DI
 SIM
 EI

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Microprocessor
Which of the following is a valid integer constant?

125 + 3
127
127
127

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