Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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Int 18h
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  Interrupt:   18h
 
  Title:       ROM BASIC
 
  Description:                                          [PC] [AT] [PS/2]
 
     Transfers control to ROM BASIC. This interrupt is invoked when
     the system is turned on or restarted if attempts to read a boot
     sector from the fixed disk or floppy disk drives are unsuccessful.
 
     Input       Output
 
     None        None
                                    -♦-