TL;DR
A programmer has developed a BASIC interpreter that boots on UEFI systems, allowing users to run classic BASIC environments on modern hardware. This innovation could impact hobbyist computing and retro programming communities.
A developer has successfully created a BASIC interpreter that boots directly on UEFI systems, bypassing traditional operating systems to run in native firmware mode. This development enables vintage-style programming environments on modern hardware, appealing to hobbyists and retro computing enthusiasts.
The developer, who posted on Show HN, explained that the project, named Thoreau BASIC, is designed to emulate classic BASIC environments with line numbers, immediate mode, simple graphics, strings, and arrays. Unlike traditional interpreters that run within an OS, this version boots directly from UEFI firmware, the modern replacement for BIOS in most PCs. The implementation involved writing low-level code that interfaces with UEFI firmware, allowing the interpreter to initialize hardware, display graphics, and accept user input without an operating system.
This achievement is notable because it demonstrates that a full programming environment can operate independently of an OS, directly on hardware firmware. The developer emphasized that the goal was to recreate a familiar, simple programming environment reminiscent of early personal computers, but on contemporary hardware platforms. The project is still in development, with some features like advanced graphics and extended memory management still under construction, but the core booting capability has been demonstrated successfully.
Implications for Retro Computing and Firmware Development
This project matters because it shows that vintage programming environments can be revived and run natively on modern hardware, which could inspire hobbyist projects, educational tools, or even minimalistic computing systems. By booting directly into a BASIC interpreter, users can experiment with programming without a full OS, potentially reducing complexity and resource usage. Additionally, this approach could influence firmware development by demonstrating how user environments can be embedded directly into UEFI firmware, opening pathways for custom firmware-based computing environments.
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Background on UEFI, BASIC, and Firmware Programming
UEFI (Unified Extensible Firmware Interface) has become the standard firmware interface for most modern PCs, replacing the traditional BIOS. It provides a flexible, modular environment that allows for custom bootloaders and firmware applications. BASIC, a programming language originating in the 1960s, became popular in personal computing for its simplicity and accessibility. Over the decades, many BASIC interpreters have existed, but most require an operating system to run.
Creating a BASIC interpreter that boots directly on UEFI is a significant technical challenge because it involves writing low-level code that interacts directly with firmware and hardware, bypassing the OS layer. Previous efforts to run vintage environments on modern hardware often relied on emulators or virtual machines. This project stands out by running on actual hardware firmware, demonstrating a new way to deploy legacy programming environments.
“My goal was to create a small, self-contained environment where you could write and run BASIC programs without needing an operating system.”
— the developer
retro programming environment for modern PC
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Technical Limitations and Future Challenges
It is not yet clear how fully the interpreter supports all BASIC features, such as complex graphics, file handling, or extended memory management. The project is still in early stages, and stability, performance, and compatibility across different hardware remain to be tested. Additionally, the security implications of running code directly from firmware are not yet addressed, raising questions about safety and robustness.
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Next Steps in Development and Community Involvement
The developer plans to refine the interpreter, expand its feature set, and improve hardware compatibility. Community feedback and contributions are encouraged to help identify bugs and develop new functionalities. Future milestones include enabling more advanced graphics, supporting file I/O, and possibly porting the project to other firmware platforms or hardware architectures. There is also interest in creating educational materials to demonstrate low-level firmware programming.
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Key Questions
Can this BASIC interpreter run on any UEFI-compatible PC?
While the project is designed for UEFI systems, compatibility depends on specific hardware and firmware implementations. Testing across various platforms is ongoing.
Does this mean I can run BASIC programs directly on my PC without an OS?
In theory, yes. The interpreter boots directly from firmware, but practical use may be limited by hardware support and stability at this stage.
What are the potential uses for this project?
This could serve educational purposes, hobbyist experimentation, or as a foundation for minimal firmware-based computing environments.
Is this project safe to try on my hardware?
Since it runs at the firmware level, caution is advised. It is recommended to test on non-critical systems and ensure firmware updates are backed up.
Will this project support modern BASIC features like graphics and file I/O?
The current version supports basic features; expanded capabilities are planned but not yet implemented.
Source: hn
