yrp604/rappel
A linux-based assembly REPL for x86, amd64, armv7, and armv8 observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3857
- days_rel: n/a
- days_push: 909
- n_releases_24m: 0
Adoption not part of the score
1277 stars · 65 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Rappel is a Linux-based interactive assembly REPL that runs instructions by rewriting and executing a child process's .text section under ptrace, displaying register and flag states after each step. It supports x86, amd64, armv7, and armv8/aarch64 architectures.
Use cases
- experiment with x86 assembly instructions interactively
- check how an instruction affects CPU registers and flags
- learn assembly language by typing instructions and seeing results
- test single assembly instructions in a pipe for scripting
- explore amd64 and ARM instruction behavior on Linux
When to choose
- you want a quick interactive way to try assembly instructions on Linux
- you need to see register and flag effects of individual instructions
- you are learning or teaching x86 or ARM assembly
When to avoid
- you need a full debugger with breakpoints and memory inspection
- you are on Windows or macOS
- you need Thumb mode support on ARM
- your kernel uses grsecurity PAX_MPROTECT, which breaks ptrace-based memory writes
Facets
cli-tool · maturity maintenance
interpreter developer-tools developer-tools operating-systems cli assembly-repl ptrace x86 amd64 armv7 armv8 aarch64 interactive-learning debugging command-line linux
1 source
- readme: https://github.com/yrp604/rappel · fetched 2026-08-28 · cee453215c84
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| yrp604/rappel | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem