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#include <vpi_user.h>
#include <inttypes.h>
#include <stdio.h>
#define STOP_ITERATION 5
static uint32_t iteration = 0;
static const char* const input_values[5] = {"000",
"001",
"010",
"011",
"100"};
static vpiHandle enum_in_handle;
static vpiHandle enum_out_handle;
static vpiHandle enum_decoded_handle;
static PLI_INT32 start_cb(p_cb_data);
static PLI_INT32 end_cb(p_cb_data);
static PLI_INT32 rw_cb(p_cb_data);
static PLI_INT32 ro_cb(p_cb_data);
static PLI_INT32 delay_rw_cb(p_cb_data);
static PLI_INT32 delay_ro_cb(p_cb_data);
static void register_cb(PLI_INT32(*f)(p_cb_data),
PLI_INT32 reason,
int64_t cycles)
{
s_cb_data cbData;
s_vpi_time simuTime;
if (cycles < 0){
cbData.time = NULL;
} else {
cbData.time = &simuTime;
simuTime.type = vpiSimTime;
simuTime.high = (PLI_INT32) (cycles >> 32);
simuTime.low = (PLI_INT32) (cycles & 0xFFFFFFFF);
}
cbData.reason = reason;
cbData.cb_rtn = f;
cbData.user_data = 0;
cbData.value = 0;
vpi_register_cb(&cbData);
}
static void entry_point_cb() {
register_cb(start_cb, cbStartOfSimulation, -1);
register_cb(end_cb, cbEndOfSimulation, -1);
register_cb(delay_ro_cb, cbAfterDelay, 0);
}
static PLI_INT32 start_cb(p_cb_data data){
(void) data;
printf("Start of simulation \n");
enum_in_handle = vpi_handle_by_name("enum_test.enum_in", NULL);
if(!enum_in_handle) printf("enum in not found\n");
enum_out_handle = vpi_handle_by_name("enum_test.enum_out", NULL);
if(!enum_out_handle) printf("enum out not found\n");
enum_decoded_handle = vpi_handle_by_name("enum_test.enum_decoded", NULL);
if(!enum_decoded_handle) printf("enum decoded not found\n");
return 0;
}
static PLI_INT32 end_cb(p_cb_data data){
(void) data;
printf("End of simulation %u \n", iteration);
return 0;
}
static PLI_INT32 rw_cb(p_cb_data data){
(void) data;
s_vpi_value val;
val.format = vpiBinStrVal;
if(iteration > 0) {
vpi_get_value(enum_decoded_handle, &val);
val.format = vpiBinStrVal;
printf("enum decoded = %s iteration %u \n", val.value.str, iteration);
vpi_get_value(enum_out_handle, &val);
printf("enum out = %s iteration %u \n", val.value.str, iteration);
val.format = vpiBinStrVal;
}
if(iteration < STOP_ITERATION) {
val.value.str = (char *) input_values[iteration];
printf("enum in <= %s iteration %u \n", val.value.str, iteration);
vpi_put_value(enum_in_handle, &val, NULL, vpiNoDelay);
register_cb(delay_ro_cb, cbAfterDelay, 1);
} else {
vpi_control(vpiFinish, 0);
}
iteration++;
return 0;
}
static PLI_INT32 ro_cb(p_cb_data data){
(void) data;
register_cb(delay_rw_cb, cbAfterDelay, 0);
return 0;
}
static PLI_INT32 delay_rw_cb(p_cb_data data){
(void) data;
register_cb(rw_cb, cbReadWriteSynch, 0);
return 0;
}
static PLI_INT32 delay_ro_cb(p_cb_data data){
(void) data;
register_cb(ro_cb, cbReadOnlySynch, 0);
return 0;
}
void (*vlog_startup_routines[]) () = {
entry_point_cb,
0
};
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