1 #include<stdio.h>
2 #include<stdlib.h>
3 #include"./include/vpi_user.h"
4 PLI_INT32 hello(PLI_BYTE8 *user_data){
5 vpi_printf("hello world!n");
6 return 0;
7 }
8
9 void hello_register()
10 {
11 s_vpi_systf_data tf_data;
12 tf_data.type=vpiSysTask;
13 tf_data.sysfunctype=0;
14 tf_data.tfname="$hello";
15 tf_data.calltf=hello;
16 tf_data.compiletf=NULL;
17 tf_data.sizetf=NULL;
18 tf_data.user_data=NULL;
19 vpi_register_systf(&tf_data);
20 }

23 #include <stdarg.h>
24 #include "./../include/vpi_user.h"
25 #include "./../include/vpi_user_cds.h"
26 #include "./../hello.c"
27 /*
28 extern void register_hello();
29
30 void (*vlog_startup_routines[])() =
31 {
32  register_hello,0
33 };
34 */
35 /* ----------------------------------------------------------------
36 The following is an example of what should be included in this
file:
37
38 extern void setup_my_callbacks(); <-- Add a declaration for your routine.
39
40 void (*vlog_startup_routines[])() =
41 {
42     $*** add user entries here ***$
43
44   setup_my_callbacks, <-- Add your routine to the table.
45         hello_re
46   0 $*** final entry must be 0 ***$
47
48 };
49 ------------------------------------------------------------------ */
50
51 extern void register_hello();
52 void (*vlog_startup_routines[VPI_MAXARRAY])() =
53 {
54
55  register_hello,0
56   /*** final entry must be 0 ***/
57 };

1.gcc vpi_user.c -fPIC -shared -o hello_vpi.so

2.ncverilog hello_pli.v +access+rwc -loadvpi ./hello_vpi.so:register_hello