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Microprocessor

Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 POP PSW
 PUSH PSW
 PUSH A
 PUSH SP

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Microprocessor
While INX B instruction execute,

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

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 1280ns
 960ns
 320ns
 640ns

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Microprocessor
Which instruction is required to rotate the content of accumulator one bit right along with carry?

 RLC
 RAR
 RAL
 RRC

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Microprocessor
The operating modes of 8255 A are called

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

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

Less than
The same as
Cannot be determined
Greater than

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