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// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
//
// Copyright 2020 by Wilson Snyder and Marlon James. This program is free software; you can
// redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
//
//*************************************************************************
#include "verilated.h"
#include "verilated_vpi.h"
#include VM_PREFIX_INCLUDE
#include "vpi_user.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <vector>
// These require the above. Comment prevents clang-format moving them
#include "TestCheck.h"
#include "TestSimulator.h"
#include "TestVpi.h"
int errors = 0;
TestVpiHandle vh_value_cb;
TestVpiHandle vh_rw_cb;
unsigned int last_value_cb_time = 0;
unsigned int last_rw_cb_time = 0;
unsigned int main_time = 0;
static void reregister_value_cb();
static void reregister_rw_cb();
static int the_value_callback(p_cb_data cb_data) {
reregister_value_cb();
return 0;
}
static int the_rw_callback(p_cb_data cb_data) {
reregister_rw_cb();
return 0;
}
static void reregister_value_cb() {
if (vh_value_cb) {
if (verbose) vpi_printf(const_cast<char*>("- Removing cbValueChange callback\n"));
int ret = vpi_remove_cb(vh_value_cb);
vh_value_cb.freed();
TEST_CHECK_EQ(ret, 1);
if (verbose) {
vpi_printf(const_cast<char*>("- last_value_cb_time %d , main_time %d\n"),
last_value_cb_time, main_time);
}
TEST_CHECK_NE(main_time, last_value_cb_time);
last_value_cb_time = main_time;
}
if (verbose) vpi_printf(const_cast<char*>("- Registering cbValueChange callback\n"));
t_cb_data cb_data_testcase;
bzero(&cb_data_testcase, sizeof(cb_data_testcase));
cb_data_testcase.cb_rtn = the_value_callback;
cb_data_testcase.reason = cbValueChange;
TestVpiHandle vh1 = VPI_HANDLE("count");
TEST_CHECK_NZ(vh1);
s_vpi_value v;
v.format = vpiSuppressVal;
cb_data_testcase.obj = vh1;
cb_data_testcase.value = &v;
vh_value_cb = vpi_register_cb(&cb_data_testcase);
TEST_CHECK_NZ(vh_value_cb);
}
static void reregister_rw_cb() {
if (vh_rw_cb) {
if (verbose) vpi_printf(const_cast<char*>("- Removing cbReadWriteSynch callback\n"));
int ret = vpi_remove_cb(vh_rw_cb);
vh_rw_cb.freed();
TEST_CHECK_EQ(ret, 1);
if (verbose) {
vpi_printf(const_cast<char*>("- last_rw_cb_time %d , main_time %d\n"), last_rw_cb_time,
main_time);
}
TEST_CHECK_NE(main_time, last_rw_cb_time);
last_rw_cb_time = main_time;
}
if (verbose) vpi_printf(const_cast<char*>("- Registering cbReadWriteSynch callback\n"));
t_cb_data cb_data_testcase;
bzero(&cb_data_testcase, sizeof(cb_data_testcase));
cb_data_testcase.cb_rtn = the_rw_callback;
cb_data_testcase.reason = cbReadWriteSynch;
vh_rw_cb = vpi_register_cb(&cb_data_testcase);
TEST_CHECK_NZ(vh_rw_cb);
}
static int the_filler_callback(p_cb_data cb_data) { return 0; }
static void register_filler_cb() {
if (verbose) {
vpi_printf(const_cast<char*>("- Registering filler cbReadWriteSynch callback\n"));
}
t_cb_data cb_data_1;
bzero(&cb_data_1, sizeof(cb_data_1));
cb_data_1.cb_rtn = the_filler_callback;
cb_data_1.reason = cbReadWriteSynch;
TestVpiHandle cb_data_1_h = vpi_register_cb(&cb_data_1);
TEST_CHECK_NZ(cb_data_1_h);
if (verbose) {
vpi_printf(const_cast<char*>("- Registering filler cbValueChange callback\n"));
}
t_cb_data cb_data_2;
bzero(&cb_data_2, sizeof(cb_data_2));
cb_data_2.cb_rtn = the_filler_callback;
cb_data_2.reason = cbValueChange;
TestVpiHandle vh2 = VPI_HANDLE("count");
TEST_CHECK_NZ(vh2);
s_vpi_value v;
v.format = vpiSuppressVal;
cb_data_2.obj = vh2;
cb_data_2.value = &v;
TestVpiHandle cb_data_2_h = vpi_register_cb(&cb_data_2);
TEST_CHECK_NZ(cb_data_2_h);
}
double sc_time_stamp() { return main_time; }
int main(int argc, char** argv) {
const std::unique_ptr<VerilatedContext> contextp{new VerilatedContext};
uint64_t sim_time = 100;
contextp->debug(0);
contextp->commandArgs(argc, argv);
const std::unique_ptr<VM_PREFIX> topp{new VM_PREFIX{contextp.get(),
// Note null name - we're flattening it out
""}};
reregister_value_cb();
TEST_CHECK_NZ(vh_value_cb);
reregister_rw_cb();
TEST_CHECK_NZ(vh_rw_cb);
register_filler_cb();
topp->eval();
topp->clk = 0;
while (main_time < sim_time && !contextp->gotFinish()) {
main_time += 1;
if (verbose) VL_PRINTF("Sim Time %d got_error %d\n", main_time, errors);
topp->clk = !topp->clk;
topp->eval();
VerilatedVpi::callValueCbs();
VerilatedVpi::callCbs(cbReadWriteSynch);
if (errors) vl_stop(__FILE__, __LINE__, "TOP-cpp");
}
if (!contextp->gotFinish()) {
vl_fatal(__FILE__, __LINE__, "main", "%Error: Timeout; never got a $finish");
}
topp->final();
return errors ? 10 : 0;
}
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