www.delorie.com/djgpp/doc/rbinter/16.html   search  
15D042BL01

Category: no classification
Flags: available only in real or V86 mode

INT 15 - Intel Pentium Pro BIOS UPDATE - WRITE BIOS UPDATE AREA

	AX = D042h
	BL = 01h
	ES:DI -> microcode update block (see #00533)
	CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
Return: CF clear if successful
	CF set on error
	AH = status (see #00532)
	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
	    00h successful
Notes:	a microcode update may also be initiated by a WRMSR instruction
	  with ECX=0079h, EDX=00000000h, and EAX=linear address of update
	  block (see #00533)
	at least 32K stack space must be available when this function is called
SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h,MSR 00000079h


  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2000   by Ralf Brown     Updated Jul 2000