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].
Umm… but this can't be in the same translation unit as frame_delay(),
because OP.EXE has cdg_put_nocolors() inbetween, which means we'd have
to compile it twice.
What probably happened there: ZUN originally wrote this in C when
frame_delay() was still next to it, then generated ASM from it,
tinkered with that, and ultimately only linked that ASM into the final
game, with the NOPCALL still in there. That might very well be the one
temporary NOPCALL workaround we can never get rid of…
Oh well, at least we got lucky with the padding, and can keep the
cdg_put_nocolors() decompilation from the last commit.
Part of P0133, funded by [Anonymous].
nmlgc