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AH = 0Fh DL = drive number (80h = first, 81h = second hard disk) ES:BX -> buffer
Return:
CF set on error CF clear if successful AH = status code (see #00234)
Notes: Does not write data to the drive. Should be called before formatting to initialize an XT-type controller's sector buffer. Used for diagnostics only on PS/2 systems
See Also: AH=0Bh
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