Function 15h Sequential Disk Write (FCB)
Writes record specified by Struct -FCB sequentially to disk
entry AH 15h
DS:DX pointer to address of Struct -FCB
return AL 00h successful write
01h diskette full, write canceled
02h disk transfer area (DTA) too small or segment wrap
note 1) The data to write is obtained from the disk transfer area
2) The record size is set to the value at offset 0Eh in the FCB.
3) This service cannot write to files set as read-only
4) The record pointed to by the Current Block (offset 0Ch) and the Current
Record (offset 20h) fields is loaded at the DTA, then the Current Block
and Current Record fields are incremented.
5) If the record size is less than a sector, the data in the DTA is written
to a buffer; the buffer is written to disk when it contains a full
sector of data, the file is closed, or a Reset Disk Int\21f\0D is
6) The record is written to disk at the current DTA address as specified
by the most recent call to function 1Ah. If the size of the record and
location of the DTA are such that a segment overflow or wraparound would
occur, the error return is set to AL=02h
|file: /Techref/INT/21f/15.htm, 1KB, , updated: 1999/4/26 11:31, local time: 2023/12/9 04:10,
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