Int 13/AH=12h

SyQuest - START/STOP SCSI DISK

AH = 12h
AL = subfunction
00h start disk
01h stop disk
CX = wait flag
00h wait for ready
01h don't wait for ready
DL = hard drive ID (bit 7 for hard disks must be set)

Return:
CF set on error
CF clear if successful
AH = status
00h successful
01h invalid function request
80h timeout

See Also: AH=12h"Future Domain" - AH=13h"SyQuest"

Category: Disk I/O Enhancements - Int 13h - S

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