Int 2F/AX=4A01h

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DOS 5+ - QUERY FREE HMA SPACE

AX = 4A01h

Return:
BX = number of bytes available in HMA (0000h if DOS not using HMA) ES:DI -> start of available HMA area (FFFFh:FFFFh if not using HMA)

Notes: Called by Windows 3.1 DOSX.EXE. Supported by Novell DOS 7

See Also: AX=4310h - AX=4A02h

Category: DOS Kernel - Int 2Fh - D

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