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Microprocessor

Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 INTR
 RST 7
 RST 5.5
 TRAP

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 2 and mode 3
Mode 0 and mode 2
Mode 0, mode 1 and mode 2
Mode 0 and mode 1

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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?

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

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Microprocessor
In 8085, the pins for SID and SOD are

4 and 3 respectively
3 and 4 respectively
4 and 5 respectively
5 and 4 respectively

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Microprocessor
While STC instruction executes,

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

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Microprocessor
It is possible to copy a file in the same directory.

True
False

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