Int 13/AH=13h

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SyQuest - READ DRIVE PARAMATERS (for DOS 5+)

AH = 13h
DL = drive ID (bit 7 set for hard disks)

Return:
CF set on error AH = status (07h) (see #00234 at AH=01h) CF clear if successful AH = 00h BL = drive type (AT/PS2 floppies only) (see #00242) CH = low eight bits of maximum cylinder number CL = maximum sector number (bits 5-0) high two bits of maximum cylinder number (bits 7-6) DH = maximum head number DL = number of drives ES:DI -> drive parameter table (floppies only)

Notes: The return values are identical to the standard INT 13/AH=08h, but the number of drives is not limited to 2, so. Scanning all possible drive numbers with the Read DASD Type call (AH=15h) should generally be preferred to determine the number of drives attached to the system.

See Also: AH=08h"PC" - AH=12h"SyQuest" - AH=15h - AH=59h"SyQuest"

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

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