A. | As soon as the TRAP pin becomes 'LOW' |
B. | By checking the TRAP pin for 'high' status at the end of each instruction fetch |
C. | By checking the TRAP pin for 'high' status at the end of the execution of each instruction |
D. | By Checking the TRAP pin for 'high' status at regular intervals |
Option: C Explanation : Click on Discuss to view users comments. |
CPU has two modes privileged and non-privileged.In order to change the mode from privileged to non-privileged
A. | A hardware interrupt is needed |
B. | A software interrupt is needed |
C. | Either (a) or (b) |
D. | A non-privileged instruction (which does not generate an interrupt) is needed |
Option: B Explanation :
A software interrupt is initiated by some program module which need some CPU services, at that time the two modes can be interchanged. Hence (B) is correct option.
Click on Discuss to view users comments. |
A. | An RST by hardware |
B. | The instruction supplied by external device through the INTA signal |
C. | An instruction from memory location 20 H |
D. | None of these |
Option: A Explanation : Click on Discuss to view users comments. |
Syllabus included in this section is-
Various Search Terms used for this section are
This Section covers Multiple Choice Questions Answers in Computer Organisation and Architecture .Who can benefit -