Retro video games delivered to your door every month!
Click above to get retro games delivered to your door ever month!
X-Hacker.org- Peter Norton Programmer's Guide - Norton Guide http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide] 

  Service C1H (decimal 193) returns the segment address of the ROM BIOS
  extended data area. The ROM BIOS clears the carry flag and returns the
  segment value in register ES if an extended BIOS data segment is in use.
  Otherwise, service C1H returns with the carry flag set.

  The ROM BIOS uses the extended data area for transient storage of data.
  For example, when you pass the address of a pointing-device interface
  subroutine to the BIOS, the BIOS stores this address in its extended data
  area.
Online resources provided by: http://www.X-Hacker.org --- NG 2 HTML conversion by Dave Pearson