[comp.lang.pascal] Inverse Bright on MDA ?

ZCCBJSB%EB0UB011.BITNET@cunyvm.cuny.edu (Josep Sau B.) (05/21/91)

In a MDA (monochrome text-only device adapter) monitor several
text attributes may be achieved using these values for TextAttr:
  $07  Normal (LightGray on Black)
  $0F  Bright (White on Black)
  $70  Inverse (Black on LightGray)
  $01  Underlined (LightGray)
  $09  Bright underlined (White)
And setting 7th bit ORing $80 brings the same attributes plus blinking.
$F0 brings "Inverse Blinking", as could be expected of $70 OR $80.

The question is, How to obtain "Bright Inverse" (Black on White)???
I've seen some programs, like Framework, that produces these
attributes on screen (Turbo doesn't, by the way).
Testing the 256 possible values for TextAttr from Turbo gives
no clues...

Anyone there could give some help ???
   Some sort of low level programming to ports ???

--Josep Sau