bitdefender/bddisasm

Health v2 · maintenance only

Adoption not part of the score

1084 stars · 121 forks observed · 2026-08-28

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

bddisasm is a fast, lightweight x86/x64 instruction decoder library written in C with no external dependencies, no memory allocation, and thread safety. It also includes bdshemu, a basic instruction emulator designed to detect shellcode-like behavior, plus CLI tooling and Python/Rust bindings.

Use cases

• decode x86/x64 machine code instructions
• disassemble raw binary files from the command line
• emulate shellcode to detect malicious behavior
• integrate disassembly into hypervisors or kernel drivers
• analyze malware samples statically
• add x86 disassembly to Python or Rust tooling

When to choose

• you need a fast, dependency-free x86/x64 decoder usable in user, kernel, or hypervisor contexts
• you want shellcode behavior emulation without a heavyweight emulator
• you need detailed instruction info like operand access modes, CPUID flags, and flags access

When to avoid

• you need disassembly for architectures other than x86/x64
• you need full system emulation with API call support
• you want a high-level interactive reverse-engineering suite like a full disassembler GUI

Facets

library · maturity active

parser reverse-engineering security simulation developer-tools security reverse-engineering developer-tools operating-systems windows cross-platform python rust cpp cli x86 x64 disassembler instruction-decoder shellcode-emulation hypervisor kernel no-dependencies thread-safe linux macos

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