$display - Print to screen a line followed by an automatic newline.$write - Write to screen a line without the newline.$swrite - Print to variable a line without the newline.$sscanf - Read from variable a format-specified string.$fopen - Open a handle to a file (read or write)$fdisplay - Write to file a line followed by an automatic newline.$fwrite - Write to file a line without the newline.$fscanf - Read from file a format-specified string.$fclose - Close and release an open file-handle.$readmemh - Read hex file content into a memory array.$readmemb - Read binary file content into a memory array.$monitor - Print out all the listed variables when any change value.$time - Value of current simulation time.$dumpfile - Declare the VCD (Value Change Dump) format output file name.$dumpvars - Turn on and dump the variables.$dumpports - Turn on and dump the variables in Extended-VCD format.$random - Return a random value. |
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