https://github.com/samth/disassemble

Disassembler for Racket
https://github.com/samth/disassemble

disassembler racket

Last synced: about 2 months ago
JSON representation

Disassembler for Racket

• Host: GitHub
• URL: https://github.com/samth/disassemble
• Owner: samth
• License: mit
• Created: 2011-01-05T22:14:44.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2023-04-27T01:45:19.000Z (over 1 year ago)
• Last Synced: 2024-12-01T03:51:05.810Z (about 2 months ago)
• Topics: disassembler, racket
• Language: Scheme
• Homepage:
• Size: 134 KB
• Stars: 78
• Watchers: 6
• Forks: 14
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

• awesome-racket - disassemble - Disassembler for Racket. (Compilers)
• awesome-racket-and-scheme - disassemble

README

        
[![Build Status](https://api.travis-ci.org/samth/disassemble.svg)](https://travis-ci.org/samth/disassemble)

A disassembler for JITed functions in Racket.

To install:

    % raco pkg install disassemble

To use it, try something like this:

```

[samth@punge:~/sw/disassemble (master) plt] racket

Welcome to Racket v6.0.1.10.

> (require disassemble)

> (define (f x) 1)

> (disassemble f)

       0: 488943f8                       (mov (mem64+ rbx #x-8) rax)

       4: 4883c3f8                       (add rbx #xfffffffffffffff8)

       8: b803000000                     (mov eax #x3)

       d: 4c8b75c8                       (mov r14 (mem64+ rbp #x-38))

      11: 4883c428                       (add rsp #x28)

      15: 415d                           (pop r13)

      17: 415c                           (pop r12)

      19: 5b                             (pop rbx)

      1a: 5d                             (pop rbp)

      1b: c3                             (ret)

>

```

If you have `ndisasm` installed (and in your `PATH`) you can also try:

```

> (disassemble f #:program 'nasm)

00000000  488943F8          mov [rbx-0x8],rax

00000004  4883C3F8          add rbx,byte -0x8

00000008  B803000000        mov eax,0x3

0000000D  4C8B75C8          mov r14,[rbp-0x38]

00000011  4883C428          add rsp,byte +0x28

00000015  415D              pop r13

00000017  415C              pop r12

00000019  5B                pop rbx

0000001A  5D                pop rbp

0000001B  C3                ret

```

This works only on x86 or x86-64.

Also, the `dump` function writes the bytes of the machine code to a

file:

```

> (dump const "file.bin")

```

Patches, uses, complaints, and suggestions are all welcome.

The disassembly code (when not using NASM) is taken from Göran

Weinholt's [_Machine Code_ library](https://gitlab.com/weinholt/machine-code).