MyHDL-numeric is an enhancement of the MyHDL package which provides support for multiple VHDL entities (MEP110) and fixed-point numbers (MEP111).
The fixed-point numbers are based on the bit-array class, that
provides support for three new types: sintba (signed integer), uintba
(unsigned integer) and sfixba (signed fixed point).
Presently it only supports these new types on VHDL, and makes use of the
IEEE fixed_pkg available on VHDL-2008. If this version is not available,
it can also make use of the proposed implementation available for VHDL-93.
You can find the sources under the vhdl directory. The implementation
also takes into account the correction presented in
DOI: 10.13140/RG.2.2.33860.42884.
An example of the numeric enhancement can be found under the directory
example/cordic.
MyHDL is available under the LGPL license. See LICENSE.txt.
If you have superuser power, you can install MyHDL-numeric as follows:
python setup.py install
This will install the package in the appropriate site-wide Python package location.
Otherwise, you can install it in a personal directory, e.g. as follows:
python setup.py install --home=$HOME
In this case, be sure to add the appropriate install dir to the
$PYTHONPATH.
If necessary, consult the distutils documentation in the standard Python library if necessary for more details; or contact me.
You can test the proper installation as follows:
cd myhdl/test/core
py.test
To install co-simulation support:
Go to the directory cosimulation/<platform> for your target platform
and following the instructions in the README.txt file.