Textio - read the same line more than once?

[westkite]

Hey

The following will read each line in a file until the end.

process
begin
while not (ENDFILE(TestFile)) loop
readline(TestFile,line_ind);
...
if (x=Y) then
exit;
end if;
...
end loop;
end process;

What if you want to read the file one more time.

I want to read the test vectors from a file. When all the test vectors are read the whole thing shall start all over.

Hope you can help me.

Regards
Thomas

 

[scottcarl]

westkite,

There are 2 ways to do this. 1) Declare your TestFile twice but give it a name such as TestFile2, or copy your original TestFile.txt to a different file altogether. When you finish with the first reading jump into a new identical process and iterate on TestFile2.
2) At the end of this process do a close_file(TestFile) --> Note that some simulators have failed on this command before so watch out and get the syntex correct. After the file_close() command rerun this process again.

Scott C