#include <dpmi.h> int __dpmi_free_physical_address_mapping(__dpmi_meminfo *_info);
Please refer to section DPMI Specification for details on DPMI function call operation. Also see section DPMI Overview for general information.
DPMI function AX = 0x0801
This function unmaps a physical device mapped with section __dpmi_physical_address_mapping. Fill in the linear address.
-1 on error, else zero.
not ANSI, not POSIX
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