( Current Y position on the LCD, that is, where we're going to
  spit our next glyph. )
: LCD_CURY 0 _mem+ ;
: LCD_CURX 1 _mem+ ;
( two pixel buffers that are 8 pixels wide (1b) by FNTH
  pixels high. This is where we compose our resulting pixels
  blocks when spitting a glyph. )
: LCD_BUF 2 _mem+ ;
: _cmd 0x10 ( CMD ) PC! _wait ;
: _data! 0x11 ( DATA ) PC! _wait ;
: _data@ 0x11 ( DATA ) PC@ _wait ;
: LCDOFF 0x02 ( CMD_DISABLE ) _cmd ;
: LCDON 0x03 ( CMD_ENABLE ) _cmd ;