- in mdloadskin() and gloadtile_hi(), use new function check_nonpow2()
(bit-twiddling) instead of loop
- Replace a couple of missed literals with CACHEAD_* enum labels
git-svn-id: https://svn.eduke32.com/eduke32@4488 1a8010ca-5511-0410-912e-c29ae57300e0
Note: in polymer.c, this was buggy (but harmless) because .r is a char:
if ((uint32_t)hictinting[MAXPALOOKUPS-1].r & 0xFFFFFF00) != 0xFFFFFF00)
git-svn-id: https://svn.eduke32.com/eduke32@4487 1a8010ca-5511-0410-912e-c29ae57300e0