HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                  INT 67,40 - Get EMM Status  (LIM EMS 3.0+)

       AH = 40h

       on return:
       AH = status

            00  success
            80  internal software error
            81  hardware malfunction
            83  unallocated or invalid handle
            84  undefined function requested
            85  no handles available
            86  error in save or restore of mapping context
            87  more pages requested than physically exist
            88  more pages requested than currently available
            89  zero pages requested
            8A  invalid logical page number
            8B  illegal physical page number
            8C  context stack out of memory
            8D  context save failed, handle already has context stack
            8E  context restore failed, no context stack for handle
            8F  invalid subfunction
            90  undefined attribute type
            91  feature not supported
            92  success, portion of the source region was overwritten
            93  length of source or destination region exceeds length of
                region allocated to either source or destination handle
            94  conventional and expanded memory regions overlap
            95  offset within logical page exceeds size of logical page
            96  region length exceeds 1M
            97  source and destination regions have same handle and overlap
            98  memory source or destination type undefined
            9A  specified DMA register set not supported ???
                specified alternate map register set not supported
            9B  all DMA register sets currently allocated ???
                all alternate map register sets currently allocated
            9C  alternate DMA sets not supported ???
                alternate map register sets not supported
            9D  undefined or unallocated DMA register set ???
                undefined or unallocated alternate map register set
            9E  dedicated DMA channels not supported
            9F  specified dedicated DMA channel not supported
            A1  duplicate handle name
            A2  attempted to wrap around 1Mb conventional address space
            A3  contents of partial page map corrupted or count of
                mappable segments exceeds total mappable segments
            A4  operating system denied access

       - registers not listed are preserved
       - should only be used after establishing that the EMS driver
         is present

Esc or Alt-X to exit int 67,40 Home/PgUp/PgDn/End ←↑↓→
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