INT 67H 4700H: Save Mapping Context
Compatibility: EMS 3.2+
Expects: AX 4700H
DX EMM handle owned by caller
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Returns: AH EMM status (0=successful)
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Info: EMM will save the current mapping of physical to logical EMS
pages, so that a TSR program or device driver may page-in its own
memory transparently to the interrupted program.
Use INT 67H 4800H restores the original mapping.
See Also: INT 67H: EMM Services
Extended Memory Specification (XMS)
Interrupts and BIOS Services
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