Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Modelsim XE 6.2c (released with ISE/Webpack 9.1) supported Systemverilog design-constructs (but no advanced testbench stuff, like coverage/constraints/assertions -- that requires a full Mentor SE-license + Questasim...)
Xe 6.2g (Webpack 9.2) did not support Systemverilog at all.
Xe 6.3c (Webpack 10.1) once again has Systemverilog design-construct support.