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Microprocessor

Microprocessor
In one’s complement 8 bit representation 11111111 represents

+0
-1
-0
1

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 logical interrupts
 conditional interrupts
 software interrupts
 hardware interrupts

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Microprocessor
An 8-bit microprocessor signifies that

 8-bit address bus
 8-bit data bus
 8-interrupt lines
 8-bit controller

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Microprocessor
The first machine cycle of an instruction is always

 A memory read cycle
 A memory write cycle
 An I/O read cycle
 A fetch cycle

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Arithmetic, assignment, relational
Assignment, relational, arithmetic
Relational, assignment, arithmetic
Arithmetic, relational, assignment

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 stack pointer.
 none of these.
 both A and B.
 program counter.

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