Interrupt List - Release 61 (16jul00)
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∕ HTML Edition ∕ Interrupt List ∕ DOS Extenders ∕ INT 21 - Rational Systems DOS/4GW - ??? {undocumented, protected mode}
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INT 21 UP - Rational Systems DOS/4GW - ???                                      
	AH = FFh
	DH = 0Dh
	???
Return: ???
Interrupt List - Release 61 (16jul00) Copyright © 1989-1999,2000 Ralf Brown, HTML conversion by RBILtoHTML - 0.9.3.3245 (r314) Copyright © 2020-2022 Jerome Shidel