nowfound

Dev tools · October 20, 2020

C++17 RISC-V RV32GC / RV64GC userspace emulator library

The fastest RVA23 RISC-V sandbox. Contribute to libriscv/libriscv development by creating an account on GitHub.

C++17 RISC-V RV32GC / RV64GC userspace emulator library launched on October 20, 2020 with 31 votes, #909 of 4,018 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.

Visit github.com ↗Alternativestop 23% of October 2020

In plain words

This is a userspace emulator library that runs RISC-V RV32GC and RV64GC binaries on other systems. Built with C++17, it allows developers and researchers to execute RISC-V programs without dedicated hardware. The library is useful for testing, debugging, and running RISC-V software across different platforms. It targets developers, embedded systems engineers, and anyone needing to emulate RISC-V instruction sets.

written from the facts on this page · September 2026

Does a similar job

all alternatives →
  • Libriscv – RISC-V userspace emulator library2022 · github.com · ▲40

    The fastest RVA23 RISC-V sandbox. Contribute to libriscv/libriscv development by creating an account on GitHub.

  • C++17 RISC-V RV32/64/128 userspace emulator library2022 · github.com · ▲5

    The fastest RVA23 RISC-V sandbox. Contribute to libriscv/libriscv development by creating an account on GitHub.

  • RISC-V core written in 600 lines of C892023 · github.com · ▲190

    32-bit RISC-V CPU in ~800 lines of C89. Contribute to mnurzia/rv development by creating an account on GitHub.

  • I built a RISC-V emulator that runs DOOMMay 2026 · github.com · ▲50

    Demo: https://www.youtube.com/watch?v=f5uygzEmdLw Hi HN, I built a RISC-V emulator that implements the RV32IM instruction set and a minimal syscall interface to run DOOM. A few weeks ago, I got my first output with a simple hello world assembly program. Since then I have been working tirelessly to get DOOM to run. I needed to figure out how to run C programs first, and came across newlib, which allows the underlying environment to implement the syscall stubs one by one until the programs run. I have also added ELF loading, but currently only a single `PT_LOAD` segment is…

  • Minimax – A Compressed-First, Microcoded RISC-V CPU2022 · github.com · ▲171

    RISC-V's compressed instruction (RVC) extension is intended as an add-on to the regular, 32-bit instruction set, not a replacement or competitor. Its designers intended RVC instructions to be expanded into regular 32-bit RV32I equivalents via a pre-decoder. What happens if we explicitly architect a RISC-V CPU to execute RVC instructions, and "mop up" any RV32I instructions that aren't convenient via a microcode layer? What architectural optimizations are unlocked as a result? "Minimax" is an experimental RISC-V implementation intended to establish if an RVC-optimized CPU is, in practice, any…

  • A Project Oberon System version running on RISC-V instead of RISC-5Aug 2026 · github.com · ▲121

    Modified version of the original from http://www.projectoberon.com/ for use with the Oberon IDE - GitHub - rochus-keller/OberonSystem at op2-rv32

More dev tools this month

the category →
  • Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

    Dev tools · 2d ago · github.com

  • /dev/null▲492

    a social network for devs

    Dev tools · 5d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 30d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 28d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 25d ago · openbot.run

  • Talanoa▲346

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 22d ago · talanoa.email

Source: Show HN post ↗

Launched alongside, October 2020

the whole month →