Rom Patcher JS

A ROM patcher made in Javascript.

This is the npm module implementation, for a web version go here.

Highlights

* Supported formats:
* IPS
* UPS
* APS (N64/GBA)
* BPS
* RUP
* PPF
* Paper Mario Star Rod (.mod)
* VCDiff (.xdelta, .vcdiff)
* can patch and create patches
* can fix internal headers after patching (Sega Mega Drive/Genesis, Game Boy)
* can remove headers before patching

Install

``sh
npm install -g rom-patcher
`

Usage

$3

`sh
RomPatcher patch "my_rom.bin" "my_patch.ips"
`
For more options:
`sh
RomPatcher patch --help
`
Options explanation:
- --validate-checksum: should validate checksum
- --add-header: adds a temporary header to the provided ROM for patches that require headered ROMs
- --remove-header: removes ROM header temporarily for patches that require headerless ROMs
- --fix-checksum: fixes any known ROM header checksum if possible
- --output-suffix: add a (patched) suffix to output ROM file name

$3

`sh
RomPatcher create "original_rom.bin" "modified_rom.bin"
`
By default, the patch will be created in IPS format. You can specify your desired format:
`sh
RomPatcher create "original_rom.bin" "modified_rom.bin" --format bps
``
Allowed values: ips, bps, ppf, ups, aps, rup (default: ips)