https://github.com/devinacker/swizzle

small utility for reordering address/data bits in ROM images
https://github.com/devinacker/swizzle

Last synced: 3 months ago
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small utility for reordering address/data bits in ROM images

• Host: GitHub
• URL: https://github.com/devinacker/swizzle
• Owner: devinacker
• License: mit
• Created: 2023-07-23T21:00:24.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2023-07-23T21:02:28.000Z (almost 3 years ago)
• Last Synced: 2025-04-19T09:21:07.907Z (about 1 year ago)
• Language: C
• Size: 2.93 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING.txt

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README

          
`swizzle` is a utility for reordering (swizzling) the address and/or data bits of a ROM image.

Usage: `swizzle [options] in_path out_path`

Supported options:

* `-h` / `--help` - show this information and exit

* `-a` / `--addr ` - specify address bit order (optional)

* `-d` / `--data ` - specify data bit order (optional)

* `-w` / `--word ` - specify number of bytes per word (default 1, max 4)

* `-b` / `--big` - use big-endian byte ordering

`` is a comma-separated list of 0-based bit indexes (comma separated, most significant first).

Example: to reverse the order of bits in each byte:

`swizzle -d0,1,2,3,4,5,6,7 in.bin out.bin`