CONS_BG
fb_clear(0, cons.y *ROM_FONT_HEIGHT, FB_WIDTH, FB_HEIGHT / 2, CONS_BG);
fb_addr[j] = bitmap & 0x8000 ? CONS_FG : CONS_BG;
fb_addr[j] = fb_addr[j] == CONS_FG ? CONS_BG : CONS_FG;
fb_clear(0, 0, FB_WIDTH, FB_HEIGHT, CONS_BG);
CONS_BG);