DOS is not the same thing as the underlying CPU, after all. A separate
file not only indicates to future port authors which parts of the code
are x86-specific, but it also speeds up build times…
… in theory, because removing 677 lines from 49 files each doesn't seem
to speed up the build as much as I had hoped? But apparently my whole
system mysteriously got faster in the meantime, and I was getting 22-23
seconds for the entire repo even before this commit. Good enough.
Part of P0134, funded by [Anonymous].
Rather than preferring either the Microsoft/Watcom `(in|out)pw?` style,
or the Borland `(in|out)portb?` style, master.lib had to introduce its
own `(OUT|IN)P[BW]` naming scheme… Insert obligatory xkcd standards
comic.
Part of P0126, funded by [Anonymous] and Blue Bolt.
Not really surprising why this works, and probably was how the original
code looked all along: The function is never called from anywhere, and
as long as the next function still lies on the same 16-byte paragraph,
it makes no difference whether the unused one is placed at the end of
the previous segment, or the beginning of the next.
Which means we can choose whatever leads to fewer translation units 👍
(Maintenance mode commit)