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AH = 18h DL = drive number CH = lower 8 bits of highest cylinder number (number of cylinders - 1) CL = sectors per track (bits 0-5) top 2 bits of highest cylinder number (bits 6,7)
Return:
AH = status 00h requested combination supported 01h function not available 0Ch not supported or drive type unknown 80h there is no disk in the drive ES:DI -> 11-byte parameter table (see #01264 at INT 1E)
Note: This function does not set the INT 1E vector to point at the returned parameter table; it is the caller's responsibility to do so
See Also: AH=05h - AH=07h - AH=17h - INT 1E
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