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Copyright 1991 David Jurgens |
INT 21,27 - Random Block Read Using FCB
AH = 27h
CX = number of records to read
DS:DX = pointer to an opened FCB
on return:
AL = 00 if read was successful
= 01 if EOF (no data read)
= 02 if DTA is too small
= 03 if EOF (partial record read)
CX = actual number of records read
- allows random access and sequential reading of a group
of records from a file opened with an FCB into the DTA
- FCB must be setup with drive id, filename, extension
record length and random record number before call
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| Esc or Alt-X to exit |
int 21,27 |
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