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-rw-r--r--doc/Simulation_and_runtime.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/Simulation_and_runtime.rst b/doc/Simulation_and_runtime.rst
index 9a925da4b..37a83521f 100644
--- a/doc/Simulation_and_runtime.rst
+++ b/doc/Simulation_and_runtime.rst
@@ -113,6 +113,11 @@ all options available, including the debugging one.
design.
+.. option:: --unbuffered
+
+ Disable buffering on stdout, stderr and files opened in write or append mode (TEXTIO).
+
+
.. option:: --vcd=<FILENAME>
.. option:: --vcdgz=<FILENAME>