- Emmanuel Chang
- Kai Ze Ee
- Stuti Rastogi
- Yash Singh
- Vishnu Lagudu
This calculator has the ability to add or subtract two two digit decimal numbers. The numerical results are displayed on two seven segments displays and the sign and overflow flag are displayed using an RGB LED.
The instructions to the calculater can be found here.
Input/Ouput (IO) of Integrated Circuit (IC):
System Signals :
clk : 10 MHz clock
nrst : active low system reset
Inputs :
push buttons (1, 0) : binary inputs to the calculator
add, subtract inputs (opcodes)
reg [1-4] : four register values to tell where to store digit input or where to read from.
Outputs :
segs[0-13] : 14 segments to show the digit outputs
neg : signals whether the output or inputs are negative values
overflow: signals if the numbers caused a overflow
Required Equipments:
- Common cathode 7 segment displays: 2
- LED (red) : 1
- LED (blue) : 1
- Push buttons : 10
- 10kΩ resistors : 10
- 150Ω resistor : 16
- Board by efabless : 1
- Wires of various lengths
- Breadboard : 1
Example:
