HW4-3750

HW4-3750 - 1 EE 3750 Homework 4 due Wed., November 7, 2001...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 OVER EE 3750 — Homework 4 due Wed., November 7, 2001 For all problems: state any assumptions made; include comments as needed to make assembly instruction sequences clear. 1. Write an 8086 instruction sequence to control a simple car radio tuner. Use program- controlled I/O. The tuner is to receive inputs from two buttons to change to preset station frequencies, an up/down signal to increment/decrement the frequency, and a reset button to change one of the station presets. The tuner is to output the new frequency whenever a change has occurred. For simplicity, assume that radio station frequencies are 16-bit integers. There are three input ports (preset, up/down, and reset) and one output port (freq). Each input from a data or status port is to be a single byte; the output to a data port is to be a word. Assume that three word variables have been initialized: PREFREQ1, PREFREQ2, and CURRFREQ, holding the preset frequency for station 1, the preset frequency for station 2, and the current radio frequency.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

HW4-3750 - 1 EE 3750 Homework 4 due Wed., November 7, 2001...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online