in the rcl instruction, the contents of the destination operand undergo function as
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In the RCL instruction, the contents of the destination operand undergo function as
In the RCL instruction, the contents of the destination operand undergo function as carry flag is pushed into LSB and MSB is pushed into the carry flag carry flag is pushed into MSB and LSB is pushed into the carry flag auxiliary flag is pushed into LSB and MSB is pushed into the carry flag parity flag is pushed into MSB and LSB is pushed into the carry flag. Microprocessor Objective type Questions and Answers.
Discussion Forum
Que. In the RCL instruction, the contents of the destination operand undergo function as
a. carry flag is pushed into LSB and MSB is pushed into the carry flag
b. carry flag is pushed into MSB and LSB is pushed into the carry flag
c. auxiliary flag is pushed into LSB and MSB is pushed into the carry flag
d. parity flag is pushed into MSB and LSB is pushed into the carry flag
Answer:carry flag is pushed into LSB and MSB is pushed into the carry flag
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In the RCL instruction the contents of the destination operand undergo function
In the RCL instruction the contents of the destination operand undergo function from CS MISC at Fr. Conceicao Rodrigues College of Engineering
1. The instruction that is used to transfer the data from...
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Fr. Conceicao Rodrigues College of Engineering
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57. In the RCL instruction, the contents of the destination operand undergofunction asa) carry flag is pushed into LSB & MSB is pushed into the carry flagb) carry flag is pushed into MSB & LSB is pushed into the carry flagc) auxiliary flag is pushed into LSB & MSB is pushed into the carry flagd) parity flag is pushed into MSB & LSB is pushed into the carry flagAnswer: aExplanation: In RCL(Rotate right through carry), for each operation, the carry flag ispushed into LSB and the MSB of the operand is pushed into carry flag.58. The instruction that is used as prefix to an instruction to execute it
repeatedly until the CX register becomes zero is59. Match the following
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A) MOvSB/SW 1) loads AL/AX register by content of a stringB) CMPS 2) moves a string of bytes stored in source to destinationC) SCAS 3) compares two strings of bytes or words whose length is stored inCX registerD) LODS 4) scans a string of bytes or wordsa) A-3,B-4,C-2,D-1b) A-2,B-1,C-4,D-3c) A-2,B-3,C-1,D-4d) A-2,B-3,C-4,D-1Answer: dExplanation: By using the string instructions, the operations on strings can beperformed.60. The instructions that are used to call a subroutine from the main programand return to the main program after execution of called function are
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61. The instruction that unconditionally transfers the control of execution tothe specified address is
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62. Which instruction cannot force the 8086 processor out of ‘halt’ state?a) Interrupt requestb) Resetc) Both interrupt request and resetd) HoldAnswer: dExplanation: Only an interrupt request or Reset will force the 8086 processor tocome out of the ‘halt’ state.
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Microprocessors Questions and Answers for Freshers
This set of Microprocessors Questions and Answers for Freshers focuses on “Instruction Set of 8086/8088 – 3”. 1. The mnemonic that is placed before the arithmetic operation is performed is a) AAA b) AAS c) AAM d) AAD 2. The Carry flag is undefined after performing the operation a) AAA b) ADC c) AAM d) ... Read more
Microprocessors Questions and Answers – Instruction Set of 8086/8088 – 3
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This set of Microprocessors Questions and Answers for Freshers focuses on “Instruction Set of 8086/8088 – 3”.
1. The mnemonic that is placed before the arithmetic operation is performed is
a) AAA b) AAS c) AAM d) AAD View Answer
2. The Carry flag is undefined after performing the operation
a) AAA b) ADC c) AAM d) AAD View Answer
3. The instruction that performs logical AND operation and the result of the operation is not available is
a) AAA b) AND c) TEST d) XOR View Answer
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4. In the RCL instruction, the contents of the destination operand undergo function as
a) carry flag is pushed into LSB & MSB is pushed into the carry flag
b) carry flag is pushed into MSB & LSB is pushed into the carry flag
c) auxiliary flag is pushed into LSB & MSB is pushed into the carry flag
d) parity flag is pushed into MSB & LSB is pushed into the carry flag
View Answer
5. The instruction that is used as prefix to an instruction to execute it repeatedly until the CX register becomes zero is
a) SCAS b) REP c) CMPS d) STOS View Answer
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6. Match the following
A) MOvSB/SW 1) loads AL/AX register by content of a string
B) CMPS 2) moves a string of bytes stored in source to destination
C) SCAS 3) compares two strings of bytes or words whose length is stored in CX register
D) LODS 4) scans a string of bytes or words
a) A-3,B-4,C-2,D-1 b) A-2,B-1,C-4,D-3 c) A-2,B-3,C-1,D-4 d) A-2,B-3,C-4,D-1 View Answer advertisement
7. The instructions that are used to call a subroutine from the main program and return to the main program after execution of called function are
a) CALL, JMP b) JMP, IRET c) CALL, RET d) JMP, RET View Answer advertisement
8. The instruction that unconditionally transfers the control of execution to the specified address is
a) CALL b) JMP c) RET d) IRET View Answer
9. Which instruction cannot force the 8086 processor out of ‘halt’ state?
a) Interrupt request
b) Reset
c) Both interrupt request and reset
d) Hold View Answer
10. NOP instruction introduces
a) Address b) Delay c) Memory location
d) None of the mentioned
View Answer
11. Which of the following is not a machine controlled instruction?
a) HLT b) CLC c) LOCK d) ESC View Answer
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Guys, does anyone know the answer?