A calculator for basys3 board implemented in System Verilog. It can perform addition and subtraction of 4-bit binary numbers and displays the result on the seven-segment display in either hex or decimal.
- sw[3:0] are used for inputting 4-bit binary values (operand1, operand2)
- sw4 is used for the selecting operator (1 for addition and 0 for subtraction)
- BTNL is used for resetting at any time
- BTNU is used to confirm operand values
- Seven-segment display is used to display values
- BTND is used for changing the display mode (hex or decimal)
i. Select operand 1, then confirm. While selecting, the value of operand 1 needs to be displayed on the sevensegment display. Page 1 of 2 ii. Select operand 2, then confirm. While selecting, the value of operand 2 needs to be displayed on the sevensegment display. iii. Display result on the seven-segment display
