=======================
VNA: Integer Arithmetic                                                   [TOC]
=======================

Update the ULM simulator
========================

Change into the directory that contains `ulm.cc` (cloned from github in the
previous session).  Then update the source code for the simulator:

---- SHELL (path=session01/ulm) -------------------------------------
git pull
---------------------------------------------------------------------

If you don't get a message that the source code was up-to-date you need to
re-compile with

---- SHELL (path=session01/ulm) -------------------------------------
g++ -Wall -std=c++11 -o ulm ulm.cc
---------------------------------------------------------------------

Modify the example form the last session
========================================

Change in `example.ulm` the first byte in the second last line to `FF`.  Such
that it contains

---- CODE(type=txt) --------------------------------------------------
81 14 00 01
1A 01 00 02
61 01 02 02
46 02 01 00
00 00 00 00
FF 33 55 77
99 BB DD FF
----------------------------------------------------------------------

*Before you run this through the simulator:* Predict what will change compared
to the previous run.  Then validate your assumption.