Int 21/AH=FFh/DH=10h

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Rational Systems DOS/4GW - ???

AH = FFh
DH = 10h
AL = ???
BX = ???
CX = ???
DI = ???
SI = ???

Return:
???

Note: Among other things, frees two memory blocks via INT 21/AH=49h

Category: DOS Extenders - Int 21h - R

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