Issue description:

I created a new mod, on the biggest disk thre is 1.048.576k space.
When i add 8 disks in the diskdrive, i got: '-201,326,592' storage.

morerefinedstorage-1.0.jar.zip [Depedencies: Refined Storage, Reborn Core, Reborn Storage]

What happens:

Screenshot

What you expected to happen:

working

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.12.2
• Forge: 14.23.5.2772+
• Refined Storage: latest

no crash log

Looks like an integer overflow to me.

EDIT: That's exactly what it is.

can you make it as a 'long' instead of an int?