首先要感谢我最最亲爱的小虫虫，今天起要开始做些有意义的事，记录和分享一些东西。——题外话
这里就不赘述UVM为何物了，，做了半年多的FPGA设计验证工作，按需求一直是用VHDL编写测试程序，最近看了几天UVM验证方法学的书，感觉这是一种很好的验证工具，现在开始UVM的学习，于是准备用ModelSim做一个Hello world，于是到网上随便搜了段代码，进行测试，见下方：
`include "uvm_pkg.sv"module hello_world_example;import uvm_pkg::*;`include "uvm_macros.svh"initial begin`uvm_info ("info1","Hello World!", UVM_LOW)end endmodule: hello_world_example
可能是因为使用的测试工具比较新（ModelSim SE 10.0c）吧，直接可以编译，然后进行仿真/运行，结果见下：
# Refreshing C:\t_uvm\work.hello_world_example# Refreshing C:\t_uvm\work.uvm_pkg# Loading sv_std.std# Loading work.uvm_pkg# Loading work.hello_world_example# ** Warning: (vsim-3770) Failed to find user specified function ‘uvm_hdl_check_path’. The search list was empty.# Using -sv_lib, -sv_root, and -sv_liblist arguments can provide a search list# of shared libraries that will be used to resolve user specified functions.# Time: 0 ns Iteration: 0 Instance: /hello_world_example File: top.sv……# ** Warning: (vsim-3770) Failed to find user specified function ‘uvm_glob_to_re’. The search list was empty.# Using -sv_lib, -sv_root, and -sv_liblist arguments can provide a search list# of shared libraries that will be used to resolve user specified functions.# Time: 0 ns Iteration: 0 Instance: /hello_world_example File: top.sv# ** Fatal: (vsim-160) c:/modeltech_10.0c/verilog_src/uvm-1.1d/src/dpi/uvm_svcmd_dpi.svh(27): Null foreign function pointer encountered when calling ‘uvm_dpi_get_next_arg_c’# Time: 0 ns Iteration: 0 Process: /uvm_pkg/#INITIAL#619 File: c:/modeltech_10.0c/verilog_src/uvm-1.1d/src/dpi/uvm_svcmd_dpi.svh# Fatal error in Module uvm_pkg at D:/modeltech_10.0c/verilog_src/uvm-1.1d/src/dpi/uvm_svcmd_dpi.svh line 27
于是在个里上网查了些资料，一直调试到现在才可以使用，如下：
1、设置环境变量（下载好的UVM解压到下面的UVM_HOME的目录）
set UVM_HOME c:/modeltech_10.0c/verilog_src/uvm-1.1dset MODEL_TECH c:/modeltech_10.0c/win322、编译UVM_DPI动态链接库(用的是gcc-4.2.1-mingw32vc9编译器)c:/modeltech_10.0c/gcc-4.2.1-mingw32vc9/bin/g++.exe -g -DQUESTA -W -shared -Bsymbolic -I $MODEL_TECH/../include $UVM_HOME/src/dpi/uvm_dpi.cc -o $UVM_HOME/lib/uvm_dpi.dll $MODEL_TECH/mtipli.dll -lregex
3、编译Hello_world_example源文件
vlog +incdir+$UVM_HOME/src -L mtiAvm -L mtiOvm -L mtiUvm -L mtiUPF C:/t_uvm/top.sv
4、仿真Hello_world_example(需要调用刚刚编译的uvm_dpi.dll)
vsim -c -sv_lib $UVM_HOME/lib/uvm_dpi work.hello_world_example最后运行得到下图结果：
至此，Hello World终于出来了。
> > >UVM参考资料< < <
海阔凭鱼跃，天高任鸟飞。我要加油，冲向我的理想。
