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Text File  |  1990-06-25  |  241b  |  6 lines
  1. To blank EGA/VGA screen - read flipflop at 0x3DA, then write 0x00
  2.                           to control port at 0x3C0
  3.  
  4. To restore screen       - read flipflop at 0x3DA, then write 0x020
  5.                           to control port at 0x3C0
  6.