TheThirdOne/rars

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1618 stars · 311 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

RARS is a RISC-V assembler and runtime simulator built as a successor to MARS, distributed as an executable Java jar. It provides a beginner-friendly development environment for writing, assembling, and debugging RISC-V assembly programs with breakpoint debugging and pseudo-instruction visualization.

Use cases

• assemble and simulate RISC-V assembly programs
• learn RISC-V assembly in a computer architecture course
• debug RISC-V assembly with breakpoints
• see how pseudo-instructions map to machine code
• assemble multiple RISC-V files together
• teach assembly language with a MARS-like tool

When to choose

• you are a student or educator learning/teaching RISC-V assembly
• you want a MARS-like environment but for RISC-V instead of MIPS
• you need a lightweight, cross-platform simulator that runs as a jar

When to avoid

• you need a full production RISC-V toolchain or emulator for real hardware
• you require MIPS support (use original MARS)
• you need cycle-accurate simulation or OS-level RISC-V execution

Facets

application · maturity active

interpreter developer-tools education developer-tools cross-platform jvm risc-v assembler simulator assembly-language mars-fork ide education computer-architecture desktop

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markdown · JSON · MCP: product_card(name="TheThirdOne/rars")