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AH = 01h DL = drive (bit 7 set for hard disk)
Return:
CF clear if successful (returned status 00h) CF set on error AH = status of previous operation (see #00234)
Note: Some BIOSes return the status in AL; the PS/2 Model 30/286 returns the status in both AH and AL
See Also: AH=00h - INT 4D/AH=01h - MEM 0040h:0041h - MEM 0040h:0074h
(Table 00234) Values for disk operation status: 00h successful completion 01h invalid function in AH or invalid parameter 02h address mark not found 03h disk write-protected 04h sector not found/read error 05h reset failed (hard disk) 05h data did not verify correctly (TI Professional PC) 06h disk changed (floppy) 07h drive parameter activity failed (hard disk) 08h DMA overrun 09h data boundary error (attempted DMA across 64K boundary or >80h sectors) 0Ah bad sector detected (hard disk) 0Bh bad track detected (hard disk) 0Ch unsupported track or invalid media 0Dh invalid number of sectors on format (PS/2 hard disk) 0Eh control data address mark detected (hard disk) 0Fh DMA arbitration level out of range (hard disk) 10h uncorrectable CRC or ECC error on read 11h data ECC corrected (hard disk) 20h controller failure 31h no media in drive (IBM/MS INT 13 extensions) 32h incorrect drive type stored in CMOS (Compaq) 40h seek failed 80h timeout (not ready) AAh drive not ready (hard disk) B0h volume not locked in drive (INT 13 extensions) B1h volume locked in drive (INT 13 extensions) B2h volume not removable (INT 13 extensions) B3h volume in use (INT 13 extensions) B4h lock count exceeded (INT 13 extensions) B5h valid eject request failed (INT 13 extensions) B6h volume present but read protected (INT 13 extensions) BBh undefined error (hard disk) CCh write fault (hard disk) E0h status register error (hard disk) FFh sense operation failed (hard disk)
See Also: #M0022
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