254   mov  ax, # VBE_DISPI_INDEX_XRES  local
257   mov  ax, 4[bp] ; xres  local
426   mov  ax, # VBE_DISPI_INDEX_X_OFFSET  variable
437   mov  ax, # VBE_DISPI_INDEX_X_OFFSET  variable
440   in   ax, dx  variable
448   mov  ax, # VBE_DISPI_INDEX_Y_OFFSET  variable
459   mov  ax, # VBE_DISPI_INDEX_Y_OFFSET  variable
462   in   ax, dx  variable
491   mov  ax, # VBE_DISPI_INDEX_VIRT_WIDTH  variable
502   mov  ax, # VBE_DISPI_INDEX_VIRT_WIDTH  variable
505   in   ax, dx  variable
512   mov  ax, # VBE_DISPI_INDEX_VIRT_HEIGHT  variable
515   in   ax, dx  variable
525   mov  ax, # VBE_DISPI_INDEX_XRES  variable
528   in   ax, dx  variable
531   mov  ax, #0x0011  variable
535   shr  ax, #3  variable
545   mov  ax, # VBE_DISPI_INDEX_YRES  variable
548   in   ax, dx  variable
573   mov  ax, #0x0009  variable
594   mov  ax, #0x0506  variable
597   mov  ax, #0x0f02  variable
598   out  dx, ax  variable