Extract - ZiLOG Z80-RIO Operating System User's Manual

5.25
EXTRACT
SYNTAX
EXTRACT file name
DESCRIPTION
EXTRACT
Lists record count, record length, and the number of bytes
in the last record of file name. If the file is of type
procedure, the file entry point, the lowest and highest
memory addresses affected by the file, and the addresses
of the memory segments which make up the file are also
displayed. For files created by IMAGE, the segment addresses
are those given in the parameter list. However, LINK provides
an optimizing algorithm for segment allocation dependent on
program memory utilization and file record length. Thus,
EXTRACT can be used to determine the best record length for
a procedure file.
I/O UNIT UTILIZATION
Unit 0: file input
Unit 2:
output listing, error messages
EXAMPLE
%EXTRACT EXTRACT
RECORD COUNT
=
0001 RECORD LENGTH
=
0400
NO. OF BYTES IN LAST RECORD
=
0400
ENTRY POINT
=
4400 LOW ADDRESS
=
4400 HIGH ADDRESS
=
47FF
STACK SIZE
=
0080
SEGMENTS:
4400 45F2
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