Digital Design
Completed

High-Speed 16-Bit Speculative Adder in Verilog

16-bit adder using speculative carry prediction for faster computation.

3 months
Individual Project
Digital Design
Digital Design · Verilog HDL · System-on-Chip
High-Speed 16-Bit Speculative Adder in Verilog
High-Speed 16-Bit Speculative Adder in Verilog screenshot 1
Active
High-Speed 16-Bit Speculative Adder in Verilog screenshot 2
High-Speed 16-Bit Speculative Adder in Verilog screenshot 3

Technical Deep Dive

This digital design project explored speculative execution techniques applied to adder design, predicting carry bits to reduce critical path delay. Key Features: • 16-bit word length • 2-stage speculative carry • Misprediction recovery logic • Configurable speculation depth Performance Metrics: • 14% faster than conventional CLA • 5% area overhead • 8% power increase (justifiable by speed gain) • 92% prediction accuracy Implementation Details: • Verilog-2001 RTL • Synopsys Design Compiler synthesis • 65nm standard cell library • Formal verification using JasperGold Applications: • High-speed microprocessors • DSP coprocessors • FPGA accelerators

Engineering Challenges

  • Misprediction recovery logic
  • Timing closure
  • Power-area tradeoffs
  • Verification complexity

Achievements & Outcomes

  • Working FPGA prototype
  • Research paper in progress
  • Potential for patent
  • Teaching resource

Technology Stack

Verilog
SystemVerilog
DC Synthesis
Formal Verification
ASIC Design

Key Innovations

  • 16-bit speculative architecture
  • 14% speed improvement
  • 92% prediction accuracy
  • Formal verification
  • Synthesizable RTL

Applications

Digital Design
Verilog HDL
System-on-Chip