www.delorie.com/djgpp/doc/rbinter/48.html   search  
2F4A15BX0000

Category: no classification

INT 2F - MS EMM386.EXE v4.46+ - INSTALL I/O VIRTUALIZATION HANDLER

	AX = 4A15h
	BX = 0000h (function number)
	DX = starting I/O address
	EDX high word = ending I/O address
	CX = number of ports to trap
	DS:SI -> I/O dispatch table (see #02815)
	DI = size of client's code and data (size of DS segment which must be
	      made available to I/O dispatch function in protected mode)
Return: CF clear if successful
	CF set on error
Notes:	this interface is only available in virtual-86 mode; the I/O handlers
	  will be called in protected mode
	only ports 0100h-FFFFh may be trapped; EMM386 reserved ports 0000h-
	  00FFh


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