[Reduction] #191: bcloser
[Reduction] #192: bgetc
[Reduction] #193: bread

This function doesn't seem to be used outside pfopen(), and IDA struggles with
that function, which explains the missing references.
[Reduction] #194: text_fillca
[Reduction] #195: bseek

Without underscore. Relative seek.
[Reduction] #196: bseek_

With underscore. Seek origin as a separate parameter.
I'm... sure there is a reason?
[Reduction] #197: VSync-related global data

[Binary change] nop → db 0 after the data declarations in every affected
executable.
[Reduction] #198-201: vsync_start and vsync_end