The 'lint' type in system 4 is NOT a 64-bit integer type. It is actually
a signed 32-bit integer type that is clamped between 0 and INT32_MAX.
Negative numbers can be assigned to a lint using SH_LOCALASSIGN (or at
least, the unofficial compiler emits such code) but LI_* instructions
always produce a positive result.
I'm guessing System40.exe converts lints to 64-bit integers for doing
arithmetic, and then clamps the result to the 32-bit integer range
before writing back to a variable.
This fixes a bug in Sengoku Rance where units would become invincible in
commander battles after their HP fell below zero.
- Create separate directories for source and header files.
- Build code shared between xsystem4 and aindump as a static library.
- Create header dirs gfx/ system4/ and vm/
- Make CG.c/h usable without a running VM
Nunuhara Cabbage