NESCompress tool
Posted: Tue Nov 26, 2024 8:16 am
I made a tool for NES compression. It's a command line Windows app. Get it from "releases" on the github link.
https://github.com/SpiderDave/NESCompress
Code: Select all
NESCompress v2024.11.26-alpha by SpiderDave (https://github.com/spiderdave)
Compress or decompress data from NES games. Supported formats:
* Konami RLE compression (as used in Life Force)
* Kemko RLE compression (as used in Bugs Bunny Crazy Castle)
Usage: NESCompress [opts]
Options:
-c, --compress:filename filename to compress
-d, --decompress:filename filename to decompress
-m, --method:method compression method
-a, --ppuaddr:address ppu address (c)
-o, --outputfile:filename output filename (c)
-0, --nt0:filename output filename for nametable 0 (d)
-1, --nt1:filename output filename for nametable 1 (d)
-2, --nt2:filename output filename for nametable 2 (d)
-3, --nt3:filename output filename for nametable 3 (d)
-b, --bkpal:filename output filename for background palette (d)
-s, --spritepal:filename output filename for sprite palette (d)
-h, --help Show this help
-v, --version show detailed version information
Items labeled with (d) apply only to decompressing.
Items labeled with (c) apply only to compressing.
Valid compression methods are: [konami, kemko]
When specifying filenames, you may also use a colon at the end and add
a file offset.
Examples:
NESCompress -d:"Castlevania III - Dracula's Curse (USA).nes:0xb580" -0:"nt0.nam"
NESCompress -c:"uncompressed.nam" -a:0x2000 -o:"compressed.nam"
NESCompress -c:"custom.nam" -o:"cv3Edit.nes:0xb580"