RBIL61 - GET FIRST CLUSTER

RBIL61 - GET FIRST CLUSTER

INT 21 - DOS 2+ internal - "SYSVARS" - GET LIST OF LISTS {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx51421}

INT 21 - DOS 3.2+ - IOCTL - GENERIC BLOCK DEVICE REQUEST {#idx49049}

INT 21 - MS-DOS 7.0+ - GENERIC IOCTL - GET FIRST CLUSTER {#idx49415}