Add z80sim info

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@471 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 35 insertions, 0 deletions

diff --git a/misc/sims/README.txt b/misc/sims/README.txt
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+README.txt
+^^^^^^^^^^
+
+This directory contains instruction set simulators that were
+used to verify NuttX and which are not readily available elsewhere.
+
+These tools were cobbled together using bits and pieces of software
+from all over the internet.  Licensing is unknown and you are
+certainly at risk if you distribute these in a commercial product.
+My recommendation:  For your personal use only.
+
+z80sim
+^^^^^^
+
+  This is an emulator for the Z80 instruction set.  It is based
+  on the instruction set emulator by Marat Fayzullin but has
+  been extended to load Intel hex format files as produced by 
+  the SDCC toolchain.
+
+  Sources and licensing
+  ^^^^^^^^^^^^^^^^^^^^^
+
+    Marat Fayzullin's Z80 instruction set simulator is available
+    here: http://fms.komkon.org/EMUL8/ .  Licensing information
+    is available at that site as well.  I am not permitted to
+    distribute that package on the internet, but the Makefile
+    will automatically download the package.
+
+    Most of the Intel hex logic was copied from some
+    http://www.pjrc.com/tech/8051/pm2_docs/intel-hex.html .
+    Licensing requires only that I include the authors name
+    (Paul Stoffregen) and contact information (paul@ece.orst.edu)
+    in the source code.
+
+