Modeltech / ModelSim

Tested with Modeltech 6.2e

To compile: source the “compile.mti” script. This will create the IEEE_PROPOSED VHDL library. The ZIP file contains VHDL-93 compatable versions of several of the new packages. Included in this <a href=”modelsim.zip”>ZIP file</a> are the following packages: <ul>library ieee_proposed; <li>use ieee_proposed.standard_additions.all; – Additions to packages standard.std <li>use ieee_proposed.standard_textio.all; – Additions to packages standard.textio <li>use ieee_proposed.env.all; – New “env” package <li>use ieee_proposed.std_logic_1164_additions.all; – Additions to std_logic_1164 <li>use ieee_proposed.numeric_std_additions.all; – Additions to numeric_std <li>use ieee_proposed.numeric_std_unsigned.all; – Package to do unsigned math with std_logic_vectors, similar to the (sic) ieee.std_logic_unsigned package. <li>use ieee_proposed.math_utiliti_pkg.all; – Types for the fixed and float packages <li>use ieee_proposed.fixed_pkg.all; – Fixed point package <li>use ieee_proposed.float_pkg.all; – Floating point package </ul>

See the README for an explination of the new functions in these packages. You will also want to look at the <a href=”http://www.vhdl.org/vhdl-200x/vhdl-200x-ft/packages/Fixed_ug.pdf“>Fixed point docuementation</a> and the <a href=”http://www.eda.org/vhdl-200x/vhdl-200x-ft/packages/Float_ug.pdf“>Floating point docuementation</a>.

Note

When you simulation, you may need to use the -novopt option. Otherwise some of the alias won’t get seen correctly.