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Int 2F Fn 7200 - Srdisk V1.30 - Installation Check [d]
AX = 7200h
Return: AL = FFh if installed
ES = segment of device driver header (see below)
Program: SRDISK is a freeware resizeable RAMdisk by Marko Kohtala
Format of device driver header:
Offset Size Description
00h 10 BYTEs same as standard device driver header (see INT 21/AH=52h)
0Ah BYTE number of subunits (drives) supported by driver
0Bh 3 BYTEs signature "SRD"
0Eh 4 BYTEs memory type string (currently only "XMS ")
12h 4 BYTEs ASCII driver version string "N.NN"
16h BYTE 00h
17h BYTE configuration format version (currently 00h)
18h WORD offset of drive configuration data
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