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Exporting task using DPI

(First of all accept my apologies, if what I am trying is completely idiotic), I am a 100% newcomer to verification. I am trying to export a task using DPI like the following //////////////////////////////////////////////////////// //// From my verilog code //////////////////////////////////////////////////////// export "DPI" task reg_read; task reg_read; input int nAddr; output int nVal; //::: Actual reading ::: endtask Now in my C code, I just extern reg_read, something like //////////////////////////////////////////////////////// //// From my C code //////////////////////////////////////////////////////// extern void reg_read (int nAddr, int *nVal); void test_read (void) { int nRegVal; reg_read (0x200, &nRegVal); } And then invoked the function from the C source code. Again the in the RTL code, I also use something like import "DPI" contect function void test_read (); ---- This is not working ---- I am sure, I am missing something here. But I am not sure what. It will be nice if somebody can help me out.

Mickey over 16 years ago

Hi Alphaneo,
Take a look at the example at the following location: http://www.cadence.com/newsletters/incisiveplatform/incisive_sysverilog.pdf?cmp=nlc-hl3214535886
I think that will help.
Best regards,
Mickey
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