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Microprocessor

Microprocessor
In one’s complement 8 bit representation 11111111 represents

+0
1
-1
-0

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

45 H
234
6 AFH
64 H

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Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0000H
 0018H
 0024H
 0028H

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 0FFE H and 0FFF H
 1000 H and 1001 H
 0FFF H and 0FFE H

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Microprocessor
In C the keywords are also called

Special words
Character words
Class words
Reserved words

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 DI
 RIM
 EI
 SIM

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