Int 13/AH=1Ch

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Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM

AH = 1Ch
DL = hard drive ID (any valid SCSI hard disk)

Return:
CF set on error AH = status code (see #00234 at AH=01h) CF clear if successful ES:BX -> first byte of free RAM on controller

Notes: The Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h to 1BFFh on-board the controller for storing drive information and controller status; ES:BX points to the first byte available for other uses. ES contains the segment at which the controller resides; the controller's two memory-mapped I/O ports are at offsets 1C00h, 1E00h

See Also: AH=1Bh"SCSI"

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

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