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Q14. When pushing aregisterpair to the stack: a- SPregister gets decremented by 2, b- SP register gets incremented by 2. C- SP register gets decremented by 1. d- SPregister getsincremented by 1. e- None of the above.

Q14. When pushing aregisterpair to the stack: a- SPregister gets decremented by 2, b- SP register gets incremented by 2. C- SP register gets decremented by 1. d- SPregister getsincremented by 1. e- None of the above.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q14. When pushing aregisterpair to thestack: a- SPregister gets decremented by 2. b- SP register gets incremented by 2. C- SP register gets decremented by 1. d- SP register gets incremented by 1. e- None of the above. Q15. Toexchange contents of DE & BC register pairusing the stack, we should: a- Push D followed by Push B then pop B followed by pop D. boPush D followed by Push E then pop B followed by pop D. c- Push B followed by Push D then pop B followed by pop D. d- Push C followed by Push B then pop B followed by pop E. e- None of the above. Q16. WR & RD pins are active low output from the CPU: a- When RD pin is 0, it means data bus is going to be output form the CPU. b- When WR pin is 0, it means data bus is going to be output form the CPU. &: Neither WR & RD can together be 0 at any time. d- Neither WR & RD can together be 0 at any time. e- None of the above. Q17. Subroutine: a- is called by CALL instruction. b- Can have another subroutine called from inside. C- Require RET instruction to go backto the calling program. d- Cause IP register affected. e All the above.
Transcribed Image Text:Q14. When pushing aregisterpair to thestack: a- SPregister gets decremented by 2. b- SP register gets incremented by 2. C- SP register gets decremented by 1. d- SP register gets incremented by 1. e- None of the above. Q15. Toexchange contents of DE & BC register pairusing the stack, we should: a- Push D followed by Push B then pop B followed by pop D. boPush D followed by Push E then pop B followed by pop D. c- Push B followed by Push D then pop B followed by pop D. d- Push C followed by Push B then pop B followed by pop E. e- None of the above. Q16. WR & RD pins are active low output from the CPU: a- When RD pin is 0, it means data bus is going to be output form the CPU. b- When WR pin is 0, it means data bus is going to be output form the CPU. &: Neither WR & RD can together be 0 at any time. d- Neither WR & RD can together be 0 at any time. e- None of the above. Q17. Subroutine: a- is called by CALL instruction. b- Can have another subroutine called from inside. C- Require RET instruction to go backto the calling program. d- Cause IP register affected. e All the above.
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