Post-Full Decompilation Cleanup

[WhenGryphonsFly]

Once we have reached 100% code decompilation, some cleanup actions will need to be taken.

• Resolve remaining NONMATCHING and TODO
• Find and resolve any fakematches that were not labeled TODO
• Check duplicate code for the possibility of being an inline function
• Split c files (such as rom_3219C.c)
• Split h files (such as functions.h and variables.h)
• Clean up declarations (e.g., use extern and static as appropriate)
  • Deal with overlapping symbols
• Ensure when setting IO registers that all fields are specified and are specified in the same order (least to most significant bits?)
• Establish and follow a style guideline in general
• Ensure overlapping IO registers use the proper register (see sub_24DC)
• Ensure proper DMA instructions are used (e.g., DmaCopy16 vs DmaCopy32)
• Remove magic numbers

Data decompilation and symbol documentation are not on this list, as they will still be calculated by calcrom after 100% code decompilation.