DOSMGR_BackFill_Allowed

include dosmgr.inc

VxDcall DOSMGR_BackFill_Allowed
jc      no_backfilling
 

Specifies whether the MS-DOS configuration allows for low-memory backfills. The V86MMGR device calls this service. Uses Flags.

• Clears the carry flag if backfilling is allowed; otherwise, set the carry flag.

This service depends on the high MS-DOS state. Certain high MS-DOS configurations prevent low memory 640K backfill from being possible.