Functions starting with `u' in 321/rhapsody

• Update16_1 321/rhapsody/vid_next.m:1228
• Update32_1 321/rhapsody/vid_next.m:1411
• Update8_1 321/rhapsody/vid_next.m:1030
• UpdateBitmap 321/rhapsody/vid_next.m:657
• UpdateFramebuffer 321/rhapsody/vid_next.m:620