# LZOnDecompress

Quick and dirty LZOn decompressor. LZOn is the format used for compressed multiboot files in DS Download Station ROMs.

Usage:

```
LZOnDecompress.exe <filename>
```

Produces filename.nds in the working directory.

**NO SUPPORT PROVIDED.** Feel free to report bugs though.

## LZOn reference

```
0x00: Magic "LZOn"
0x04: Magic 0x00,0x2F,0xF1,0x71 (presumably)
0x08: Size of decompressed file (32-bit, big endian)
0x0C: Size of compressed file minus 0x11 (32-bit big endian)
0x10: LZO compressed data stream (follows https://www.kernel.org/doc/Documentation/lzo.txt). Note that 16-bit values in the LZO stream are little endian.
```

Output generated by decompressing the LZO data stream and then padding to the decompressed file size specified in the header with 0x00 bytes.