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Microprocessor

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

 PUSH SP
 POP PSW
 PUSH PSW
 PUSH A

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Microprocessor
In C the keywords are also called

Special words
Class words
Character words
Reserved words

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are output
 mode 0; all ports are input
 unchanged condition
 mode 2

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Microprocessor
Output of the assembler in machine codes is referred to as

 Symbolic addressing
 Macroinstruction
 Source program
 Object program

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Microprocessor
CALL instruction is a ______ instruction.

 1 bytes
 4 bytes
 2 bytes
 3 bytes

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Microprocessor
The multiplexing of address bus and data buses is used in

 never multiplexed.
 none of these.
 all the microprocessors.
 depends on the internal architecture.

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