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Recent questions tagged 8085-microprocessor

5 votes
5 answers
31
ISRO-2013-35
How many number of times the instruction sequence below will loop before coming out of the loop? MOV AL, 00H A1: INC AL JNZ A1 1 255 256 Will not come out of the loop.
How many number of times the instruction sequence below will loop before coming out of the loop? MOV AL, 00H A1: INC AL JNZ A11255256Will not come out of t...
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3 votes
2 answers
33
GATE CSE 1996 | Question: 1.22
Number of machine cycles required for RET instruction in 8085 microprocessor is 1 2 3 5
Number of machine cycles required for RET instruction in 8085 microprocessor is1235
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1 votes
1 answer
36
GATE CSE 1995 | Question: 1.1
A single instruction to clear the lower four bits of the accumulator in 8085 assembly language? XRI 0FH ANI F0H XRI F0H ANI 0FH
A single instruction to clear the lower four bits of the accumulator in 8085 assembly language?XRI 0FHANI F0HXRI F0HANI 0FH
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3 votes
1 answer
41
GATE CSE 1997 | Question: 5.2
Contents of A register after the execution of the following 8085 microprocessor program is MVIA, 55 H MVI C, 25 H ADDC DAA 7AH 80H 50H 22H
Contents of A register after the execution of the following 8085 microprocessor program is MVIA, 55 H MVI C, 25 H ADDC DAA 7AH80H50H22H
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1 votes
1 answer
42
GATE CSE 1997 | Question: 2.2
RST 7.5 interrupt in 8085 microprocessor executes the interrupt service routing from interrupt vector location 0000H 0075H 003CH 0034H
RST 7.5 interrupt in 8085 microprocessor executes the interrupt service routing from interrupt vector location0000H0075H003CH0034H
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31 votes
2 answers
44
GATE CSE 1998 | Question: 1.17
The octal representation of an integer is $(342)_8$. If this were to be treated as an eight-bit integer in an $8085$ based computer, its decimal equivalent is $226$ $-98$ $76$ $-30$
The octal representation of an integer is $(342)_8$. If this were to be treated as an eight-bit integer in an $8085$ based computer, its decimal equivalent is$226$$-98$$7...
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4 votes
0 answers
46
GATE CSE 2002 | Question: 2.4
What are the states of the Auxillary Carry (AC) and Carry Flag (CY) after executing the following 8085 program? MVI H, 5DH MIV L, 6BH MOV A, H ADD L AC = 0 and CY = 0 AC = 1 and CY = 1 AC = 1 and CY = 0 AC = 0 and CY = 1
What are the states of the Auxillary Carry (AC) and Carry Flag (CY) after executing the following 8085 program?MVIH,5DHMIVL,6BHMOVA,HADDL AC = 0 and CY = 0AC = 1 and CY =...
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2 votes
1 answer
47
GATE CSE 2002 | Question: 1.10
In 8085 which of the following modifies the program counter Only PCHL instruction Only ADD instructions Only JMP and CALL instructions All instructions
In 8085 which of the following modifies the program counterOnly PCHL instructionOnly ADD instructionsOnly JMP and CALL instructionsAll instructions
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1 votes
1 answer
48
GATE CSE 2001 | Question: 1.9
A low memory can be connected to 8085 by using $INTER$ $\overline{RESET\text{ }IN}$ $HOLD$ $READY$
A low memory can be connected to 8085 by using$INTER$$\overline{RESET\text{ }IN}$$HOLD$$READY$
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1 votes
1 answer
52
GATE CSE 2000 | Question: 1.7
To put the 8085 microprocessor in the wait state lower the HOLD input lower the READY input raise the HOLD input raise the READY input
To put the 8085 microprocessor in the wait statelower the HOLD inputlower the READY inputraise the HOLD inputraise the READY input
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3 votes
0 answers
54
GATE CSE 1992 | Question: 02,iv
02. Choose the correct alternatives (more than one may be correct) and write the corresponding letters only:
02. Choose the correct alternatives (more than one may be correct) and write the corresponding letters only:
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