Allowing us to consistently mirror the declaration in pc98.inc
without adding a planar.inc file. 😛 And points us to two more
dots8_t* arrays that should have used the Planar<> template.
Part of P0135, funded by [Anonymous].
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].
Yup, no trick there. If the selection moves to the other character, the
original background behind the raised top and left edges has to be
blitted back to VRAM, which means that it also has to be stored
somewhere. TH04 backs up exactly the two 256×8 and 8×244 strips behind
Reimu and Marisa, requiring 2 KB of heap memory, whereas TH05 simply
gave up, and backs up the entire 640×400 screen, totalling 128 KB.
Part of P0125, funded by [Anonymous].