*** A Computer Architechture Question***

EEL 4768 Computer Architecture and organization Display Decoder Lab #3 Introduction Many digital devices use seven-segment displays to represent numbers. Some examples include digital clocks and speedometers. One or more of the seven segments light up to display the desired number. In this lab, you will construct the seven-segment display decoder. It is called a decoder because it takes the four inputs and decodes them into seven outputs. Background The objective of this lab is to simulate, and implement a seven- segment display, as shown in Figure. Each of the seven segments is labeled a through g. The numbers 0 through F light up the segments shown in Figure 2. For example, the number 0 lights up all but the middle segment, segment g Figure 1. Seven-segment display 123456 189AbCdEF Figure 2. Se ven-segment display function You wil build a seven-segment display decoder, shown in Figure 3. The circuit has four input bits, Dso (representing a hexadecimal number between 0 and F), and produces seven output bits, Sg, that drive the seven segments to display the number. A segment of the display turns on when it is 0. Such an output is called a low-asserted output or active low output