Macros starting with `r' in src/include

• RES_SHIFT src/include/drawing.h:21
• restore_string src/include/savestate.h:37
• restore_u16 src/include/savestate.h:33
• restore_u32 src/include/savestate.h:32
• restore_u64 src/include/savestate.h:31
• restore_u8 src/include/savestate.h:34