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AH = 40h
Return:
AH = status (00h,80h,81h,84h) (see #03648)
Note: This call can be used only after establishing that the EMS driver is in fact present
See Also: AH=3Fh - AX=FFA5h - @xxxxh:xxxxh"PMM"
(Table 03648) Values for EMS function status: 00h successful 80h internal error 81h hardware malfunction 82h busy -- retry later 83h invalid handle 84h undefined function requested by application 85h no more handles available 86h error in save or restore of mapping context 87h insufficient memory pages in system 88h insufficient memory pages available 89h zero pages requested 8Ah invalid logical page number encountered 8Bh invalid physical page number encountered 8Ch page-mapping hardware state save area is full 8Dh save of mapping context failed 8Eh restore of mapping context failed 8Fh undefined subfunction 90h undefined attribute type 91h feature not supported 92h successful, but a portion of the source region has been overwritten 93h length of source or destination region exceeds length of region allocated to either source or destination handle 94h conventional and expanded memory regions overlap 95h offset within logical page exceeds size of logical page 96h region length exceeds 1M 97h source and destination EMS regions have same handle and overlap 98h memory source or destination type undefined 9Ah specified alternate map register or DMA register set not supported 9Bh all alternate map register or DMA register sets currently allocated 9Ch alternate map register or DMA register sets not supported 9Dh undefined or unallocated alternate map register or DMA register set 9Eh dedicated DMA channels not supported 9Fh specified dedicated DMA channel not supported A0h no such handle name A1h a handle found had no name, or duplicate handle name A2h attempted to wrap around 1M conventional address space A3h source array corrupted A4h operating system denied access
Category: Memory Management - Int 67h - L
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