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Microprocessor

Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 13
 10
 7

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 There are 16 address lines
 It counts 16-bits at a time
 It has to fetch two 8-bit data at a time

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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.

 DI
 SIM
 EI
 RIM

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

Immediate
Direct
Register
Implicit

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

 POP B
 POP 30 H
 POP PSW
 POP D

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 SUB A
 MOV A, 00H
 CLR A
 ORA A

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