Playing around Galpani 1 and 2 on PC-98. Since both games has CD-check, I couldn't get it to install into HDI image. Also tried to switch emulator from Neko Project to Anex86 with CDX plugin, but it didn't work for me.
The archive file (.LBR file) are easy enough to extract, but all image files are compressed. Without the ability to run the game, I just dive right in to look for decompression code with IDA Pro, available here: https://www.scummvm.org/news/20180331/
To my surprise, there are not just one decompression code, but THREE decompression code. The difference is just the dictionary position and length. The 2nd code is 2x the position and 1/2 the length. The 3rd code is 4x the position and 1/4 the length.
So yeah, HOLY CRAP! How am I suppose to know which decompression code to use, if I can't verify it via save state?
So far, I managed to get this by randomly trying the decompression code:
![[Image: dxNJcKK.png]](https://i.imgur.com/dxNJcKK.png)
Really wish to have save states to check for stuff.
- Rufas
P.S. I heard DOSBOX and MAME can also run PC-98 games. Not sure if it is real or not. I haven't try.
The archive file (.LBR file) are easy enough to extract, but all image files are compressed. Without the ability to run the game, I just dive right in to look for decompression code with IDA Pro, available here: https://www.scummvm.org/news/20180331/
To my surprise, there are not just one decompression code, but THREE decompression code. The difference is just the dictionary position and length. The 2nd code is 2x the position and 1/2 the length. The 3rd code is 4x the position and 1/4 the length.
So yeah, HOLY CRAP! How am I suppose to know which decompression code to use, if I can't verify it via save state?
So far, I managed to get this by randomly trying the decompression code:
Really wish to have save states to check for stuff.
- Rufas
P.S. I heard DOSBOX and MAME can also run PC-98 games. Not sure if it is real or not. I haven't try.