modelsim系统任务问题
时间：10-02
整理：3721RD
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modelsim 仿真想生成VCD文件，可是出现这种问题，如何解决啊
** Warning: (vsim-PLI-3003) tb_fsm_seq.v(38): [TOFD] - System task or function '$fsdbDumpvars' is not defined.
** Warning: (vsim-PLI-3003) tb_fsm_seq.v(38): [TOFD] - System task or function '$fsdbDumpvars' is not defined.