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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8255
 8155
 8251
 8257

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Microprocessor
While STC instruction executes,

 only carry flag will be affected.
 all flags will be affected.
 no flags will be affected.
 only carry and zero flags will be affected.

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Direct
Immediate
Register
Implicit

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Microprocessor
What is mean by ALU

 Arithmetic local unsigned
 Arithmetic logic unit
 Arithmetic logic upgrade
 Arithmetic logic unsigned

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Accumulators
 Registers
 Buffers
 Decoders

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Microprocessor
The control flags in 8086 are:

All of these
 the direction flag(DF).
 the interrupt flag(IF).
 the Trap flag(TF).

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