DOS Fn 5802H: Query Upper-Memory Link State
Compatibility: 5.0+
Expects: AX 5802H
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Returns: AL 01H = upper▲ memory is currently linked
00H = not linked (all allocations go to conventional▲ mem)
CF always clear (CF=NC=0)
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Info: Obtains a code indicating whether programs can allocate memory
from UMBs▲.
See Accessing Upper Memory for info on allocating from UMBs.
See Also: Fn 48H (allocate memory)
Memory Control Functions
DOS Functions
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