ref: c5fb2c947ffcdd0ddd80319a24a6acbe828d9598 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