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__dpmi_map_device_in_memory_block

Syntax

 
#include <dpmi.h>

int __dpmi_map_device_in_memory_block(__dpmi_meminfo *info, 
                                      unsigned long *physaddr);

Description

Please refer to the DPMI Specification (see section DPMI Specification) for details on DPMI function call operation. Also see the DPMI Overview (see section DPMI Overview) for general information.

DPMI function AX = 0x0508 (DPMI 1.0 only). Supported by CWSDPMI, but not by Windows.

This function maps a physical address range to virtual memory. Pass the handle, offset relative to the start of the block, and number of pages to map.

Return Value

-1 on error, else zero.

Portability

ANSI/ISO C No
POSIX No


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  Copyright 2004   by DJ Delorie     Updated Apr 2004