ref: 789ebc73042e07b5e50b3cc3c17ebd1df141f000 dir: /macros/pals.asm/
tilepal: MACRO ; vram bank, pals x = \1 << 3 rept (_NARG +- 1) / 2 dn (x | PAL_BG_\3), (x | PAL_BG_\2) shift shift endr endm