Digital-System-Design

Digital System Design Lab verilog codes

Basic Gates

• OR GATE
• AND GATE
• NOT GATE
• NAND GATE
• NOR GATE
• X-OR GATE
• X-NOR GATE

Code Converter

• Binary to Gray conversion
• Gray to Binary conversion
• BCD to Excess-3
• Excess-3 to BCD

Adder

• Half Adder
• Full Adder (using half adder)
• Full Adder (without using half adder)
• 4 Bit Ripple Carry Adder
• 4 Bit Carry Lookahead Adder

Subtractor

• Half Subtractor
• Full Subtractor

Adder-Subtractor

• 4 bit adder subtractor

Comparator

• 2 bit comparator

Multiplexer

• 2x1 MUX
• Enable 2x1 MUX
• 4x1 MUX
• 4x1 MUX using 2x1 MUX
• 8x1 MUX

Multiplier

• 2x2 Array Multiplier

Flip Flops

• JK FlipFlop
• D FlipFlop
• D flipflop using SR flipflop with clear input
• T FlipFlop
• Master Slave JK flipflop

Counters

• Synchronous

  • 4 bit random sequence
  • 3 Bit Synchronous Up/Down

• Asynchronous

  • 4 bit ripple counter or mod-16 counter
  • Mod - 10 Counter