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Format of MS-DOS 7.0 HMA memory control block

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Offset Size Description

00h

WORD

signature "MS" (4Dh 53h)

02h

WORD

usage flag???
0000h = free
else

-

???

04h

WORD

size of memory block in bytes (not counting MCB)

06h

WORD

offset of next memory block in HMA or 0000h

08h

8 BYTEs

unused (0)

See Also:

#01628,#01630,#01632