Q1) Write an assembly program that continuously flashes 8 LEDS connected to Port B (1/0 Address 22) on and off with a period of "?" seconds. When an interrupt is received on Interrupt line RST 7.5, the interrupt service routine (ISR) should switch the LEDS off for "!!" seconds then return to flashing mode. Q2) Sketch a flowchart diagram for the main program and the ISR of RST 7.5. Substitute for "?" any number between 1 and 9. Substitute for "!" any number between I and 9.

Q1) Write an assembly program that continuously flashes 8 LEDS connected to Port B (1/0 Address 22) on and off with a period of "?" seconds. When an interrupt is received on Interrupt line RST 7.5, the interrupt service routine (ISR) should switch the LEDS off for "!!" seconds then return to flashing mode. Q2) Sketch a flowchart diagram for the main program and the ISR of RST 7.5. Substitute for "?" any number between 1 and 9. Substitute for "!" any number between I and 9.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q1) Write an assembly program that continuously flashes 8
LEDS connected to Port B (1/0 Address 22) on and off with a
period of "?" seconds. When an interrupt is received on
Interrupt line RST 7.5, the interrupt service routine (ISR)
should switch the LEDS off for "!!" seconds then return to
flashing mode.
Q2) Sketch a flowchart diagram for the main program and the
ISR of RST 7.5.
- Substitute for "?" any number between 1 and 9.
- Substitute for "!" any number between 1 and 9.
Submission Instructions:
1) Write your solution by hand on A4 size pages.
2) Write your name, signature, Date, "Homework 6" at the top of each page.
3) Take a clear photo of the page.
4) Submit the picture in MS Teams Assignment before the deadline below.

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