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Microprocessor

Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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Microprocessor
Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor?

 1, 3, 5
 1, 3, 4
 1, 2, 5
 2, 3, 5

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 2, 3 and 4
 1, 2 and 3
 1, 2 and 4
 1, 3 and 4

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

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

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Microprocessor
The stack pointer

 resides in microprocessor
 resides in ROM
 resides in RAM
 may be in RAM or ROM

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Microprocessor
Register pair used to indicate memory

 H and L
 D and E
 B and C
 W and Z

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