DOS/32 Advanced DOS Extender - Programmer's Reference 2.44 - DPMI function 0801h - Free Physical Address Mapping Releases a mapping of physical to linear addresses that was previously obtained with the Physical Address Mapping DPMI function 0800h.
In: | AX = 0801h BX:CX = linear address returned by physical address mapping call
Out: | if successful: CF clear if failed: CF set AX = error code 8025h - invalid linear address
Notes: a) The client should call this function when it is finished using a device previously mapped to linear addresses with the Physical Address Mapping DPMI function 0800h. Copyright © Supernar Systems, Ltd. 1996-2002 All Rights Reserved.