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Microprocessor

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

 10
 13
 7
 16

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Microprocessor
A combinational PLD with a fixed AND array and a programmable OR array is called a

 PAL
 PLA
 PLD
 PROM

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Microprocessor
A 37 bit mantissa has an accuracy of

10 decimal places
8 decimal places
6 decimal places
11 decimal places

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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

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

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Microprocessor
Which of the following instruction will never affect the zero flag?

 XRA R
 DCX Rp
 DCR R
 ORA R

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 00
 10
 01
 11

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