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Microprocessor

Microprocessor
Which of the following instruction is not possible in 8085?

 POP 30 H
 POP D
 POP PSW
 POP B

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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.

 SIM
 DI
 EI
 RIM

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Microprocessor
SUB A instruction in 8085

 sets zero and sign flags
 reset carry and sign flags
 sets zero and carry flags
 reset zero and parity flags

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

6 AFH
64 H
45 H
234

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Microprocessor
The 8085 microprocessor enters into bus idle machine cycle whenever

 RST 7.5 is recognized
None of these
 INTR interrupt is recognized
 DAD RP instruction is executed

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Microprocessor
The five flags in 8085 are designated as

Z, CY, S, D, AC
D, Z, S, P, AC
Z, CY, S, P and AC
Z, C, S, P, AC

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