May 2024
Intermediate to advanced
889 pages
30h 8m
English
book
The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
by Lyla B. Das
Content preview from The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
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THE INTERRUPT STRUCTURE OF 8086 8-41
3. Explain the terms ‘interrupt service routine’ and ‘interrupt vector’.
4. The hardware interrupt INTR is called a non-vectored interrupt. Why?
5. List the interrupts reserved by Intel.
6. Explain the sequence of actions that occur in an interrupt acknowledge cycle.
7. What happens if a number of interrupts occur at the same time?
8. What is meant by the ‘attribute’ byte with reference to video display of text?
9. List a few BIOS functions used for display activation.
10. List a few BIOS functions used for keyboard testing.
11. What does the word TSR mean?
12. Why cannot DOS interrupts be used in TSR programs? ...
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