INT 13 U - QUICKCACHE II v4.20 - SET READ BUFFER SIZE FOR SPECIFIC DRIVE
AH = 39h
AL = new size of read buffer
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=2Ah,AH=3Ah