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_read
=====

Syntax
------

     #include <io.h>
     
     ssize_t _read(int fildes, void *buf, size_t nbyte);

Description
-----------

This is a direct connection to the MS-DOS read function call, int 0x21,
%ah = 0x3f.  No conversion is done on the data; it is read as raw
binary data.

Return Value
------------

The number of bytes read.