verilog 6 systemverilog 4 verilator 4 vivado 3 simulation 3 fpga 3 xcelium 2 iverilog 2 system-verilog 2 system verilog 2 modelsim 2 hdl 2 python 2 synthesis 2 eda 2 vcs 2 icestorm 1 lattice 1 ghdl 1 fossi 1 riviera-pro 1 spyglass 1 altera 1 vhdl 1 xilinx 1 yosys 1 socket-programming 1 verification 1 verilog-hdl 1 vpi 1 fixed-point 1 fixed point 1 synthesizable 1 floating-point 1 icarus 1 irun 1 ncsim 1 xrun 1 testing 1 flow 1 foss 1 gtkwave 1 mit-license 1 simulator 1 surfer 1 svut 1 tdd 1 tdd-utilities 1 testcase 1 vcd 1 verification-methodologies 1 analog 1 mixed-signal 1 mixed signal 1 icarus verilog 1 generator 1 emulation 1 VHDL 1 EDA 1 rtl 1 FPGA 1 Xilinx 1 Altera 1