Learn Bluespec-systemverilog - 3 Code Examples & CST Typing Practice Test

Bluespec SystemVerilog (BSV) is a high-level hardware description language (HDL) for designing complex digital systems. It extends SystemVerilog with a rule-based programming model, enabling modular, correct-by-construction hardware design.

View all 3 Bluespec-systemverilog code examples →

Blink LED Module 2-bit Counter 2-input AND Gate

Learn BLUESPEC-SYSTEMVERILOG with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Blink LED Module

module mkBlinkLED(LED led);
    Reg#(Bit#(24)) counter <- mkReg(0);

    rule tick;
        counter <= counter + 1;
        led <= counter[23];
    endrule
endmodule

Toggle an LED using a counter and rule-based logic in BSV.

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2-bit Counter

module mkCounter2Bit(Bit#(2) count);
    Reg#(Bit#(2)) cnt <- mkReg(0);

    rule increment;
        cnt <= cnt + 1;
        count <= cnt;
    endrule
endmodule

A simple 2-bit synchronous counter using BSV rules.

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2-input AND Gate

module mkAndGate(Bit A, Bit B, Bit Y);
    rule logic;
        Y <= A & B;
    endrule
endmodule

Implement a 2-input AND gate in Bluespec SystemVerilog.

Let’s Try →

Frequently Asked Questions about Bluespec-systemverilog

What is Bluespec-systemverilog?

What are the primary use cases for Bluespec-systemverilog?

Designing FPGA-based digital systems. Building complex ASIC hardware components. Rapid prototyping of hardware modules. Hardware/software co-design experiments. Teaching hardware design and formal verification concepts

What are the strengths of Bluespec-systemverilog?

High-level abstractions reduce hardware design complexity. Rule-based concurrency simplifies timing and scheduling. Reusable modules improve design productivity. Strong type system prevents common hardware errors. Synthesis to FPGA and ASIC supported

What are the limitations of Bluespec-systemverilog?

Niche language with smaller community than traditional HDLs. Learning curve for rule-based concurrency. Toolchain may not support all FPGA/ASIC flows. Less widely used in industry compared to standard SystemVerilog or VHDL. Debugging complex rules can be challenging

How can I practice Bluespec-systemverilog typing speed?

CodeSpeedTest offers 3+ real Bluespec-systemverilog code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Learn Bluespec-systemverilog - 3 Code Examples & CST Typing Practice Test

Code Sample Descriptions

Blink LED Module

module mkBlinkLED(LED led);
    Reg#(Bit#(24)) counter <- mkReg(0);

    rule tick;
        counter <= counter + 1;
        led <= counter[23];
    endrule
endmodule

Toggle an LED using a counter and rule-based logic in BSV.

Let’s Try →

2-bit Counter

module mkCounter2Bit(Bit#(2) count);
    Reg#(Bit#(2)) cnt <- mkReg(0);

    rule increment;
        cnt <= cnt + 1;
        count <= cnt;
    endrule
endmodule

A simple 2-bit synchronous counter using BSV rules.

Let’s Try →

2-input AND Gate

module mkAndGate(Bit A, Bit B, Bit Y);
    rule logic;
        Y <= A & B;
    endrule
endmodule

Implement a 2-input AND gate in Bluespec SystemVerilog.

Let’s Try →

Frequently Asked Questions about Bluespec-systemverilog

What is Bluespec-systemverilog?

What are the primary use cases for Bluespec-systemverilog?

What are the strengths of Bluespec-systemverilog?

What are the limitations of Bluespec-systemverilog?

How can I practice Bluespec-systemverilog typing speed?

CodeSpeedTest offers 3+ real Bluespec-systemverilog code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.