qa.hlp (Table of Contents; Topic list)
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Int 15H Function 21H Subfunction 01H
   ◄Summary►  ◄Notes►  ◄Back►
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  Description:  Write POST Error Log      [PS/2]
 
  Adds an entry to the power-on self-test (POST) error log.
 
  Input                           Output
  ════════════════════            ═════════════════════════════
  AH=21H                          If function successful
  AL=01H                          Carry flag=clear
  BH=device identifier            AH=00H
  BL=device error code            If function unsuccessful
                                  Carry flag=set
                                  AH=status
                                     01H=error list full
                                     80H=invalid command
                                     86H=function not supported
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