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// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
//
// Copyright 2010-2011 by Wilson Snyder. 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
//
//*************************************************************************
#ifdef IS_VPI
#include "vpi_user.h"
#include <cstdlib>
#else
#include "verilated.h"
#include "verilated_vcd_c.h"
#include "verilated_vpi.h"
#include "Vt_vpi_module.h"
#include "Vt_vpi_module__Dpi.h"
#include "svdpi.h"
#endif
#include <cstdio>
#include <cstring>
#include <iostream>
// These require the above. Comment prevents clang-format moving them
#include "TestSimulator.h"
#include "TestVpi.h"
#define DEBUG \
if (0) printf
void modDump(const TestVpiHandle& it, int n) {
while (TestVpiHandle hndl = vpi_scan(it)) {
const char* nm = vpi_get_str(vpiName, hndl);
for (int i = 0; i < n; i++) printf(" ");
printf("%s\n", nm);
TestVpiHandle subIt = vpi_iterate(vpiModule, hndl);
if (subIt) modDump(subIt, n + 1);
}
}
extern "C" {
int mon_check() {
#ifdef TEST_VERBOSE
printf("-mon_check()\n");
#endif
TestVpiHandle it = vpi_iterate(vpiModule, NULL);
CHECK_RESULT_NZ(it);
// Uncomment to see what other simulators return
// modDump(it, 0);
// return 1;
TestVpiHandle topmod;
// both somepackage and t exist at the top level
while ((topmod = vpi_scan(it))) {
if (vpi_get(vpiType, topmod) == vpiModule) break;
}
CHECK_RESULT_NZ(topmod);
const char* t_name = vpi_get_str(vpiName, topmod);
CHECK_RESULT_NZ(t_name);
// Icarus reports the top most module as "top"
if (std::strcmp(t_name, "top") == 0) {
it = vpi_iterate(vpiModule, topmod);
CHECK_RESULT_NZ(it);
CHECK_RESULT(vpi_get(vpiType, it), vpiModule);
topmod = vpi_scan(it);
t_name = vpi_get_str(vpiName, topmod);
CHECK_RESULT_NZ(t_name);
}
CHECK_RESULT_CSTR(t_name, "t");
TestVpiHandle topmod_done_should_be_0 = (vpi_scan(it));
it.freed(); // IEEE 37.2.2 vpi_scan at end does a vpi_release_handle
CHECK_RESULT_Z(topmod_done_should_be_0);
TestVpiHandle it2 = vpi_iterate(vpiModule, topmod);
CHECK_RESULT_NZ(it2);
TestVpiHandle mod2 = vpi_scan(it2);
CHECK_RESULT_NZ(mod2);
const char* mod_a_name = vpi_get_str(vpiName, mod2);
CHECK_RESULT_CSTR(mod_a_name, "\\mod.a ");
TestVpiHandle it3 = vpi_iterate(vpiModule, mod2);
CHECK_RESULT_NZ(it3);
TestVpiHandle mod3 = vpi_scan(it3);
CHECK_RESULT_NZ(mod3);
const char* mod_c_name = vpi_get_str(vpiName, mod3);
if (std::strcmp(mod_c_name, "\\mod_b$ ") == 0) {
// Full visibility in other simulators, skip mod_b
TestVpiHandle mod4 = vpi_scan(it3);
CHECK_RESULT_NZ(mod4);
mod_c_name = vpi_get_str(vpiName, mod4);
}
CHECK_RESULT_CSTR(mod_c_name, "\\mod\\c$ ");
return 0; // Ok
}
}
//======================================================================
#ifdef IS_VPI
static int mon_check_vpi() {
TestVpiHandle href = vpi_handle(vpiSysTfCall, 0);
s_vpi_value vpi_value;
vpi_value.format = vpiIntVal;
vpi_value.value.integer = mon_check();
vpi_put_value(href, &vpi_value, NULL, vpiNoDelay);
return 0;
}
static s_vpi_systf_data vpi_systf_data[] = {{vpiSysFunc, vpiIntFunc, (PLI_BYTE8*)"$mon_check",
(PLI_INT32(*)(PLI_BYTE8*))mon_check_vpi, 0, 0, 0},
0};
// cver entry
void vpi_compat_bootstrap(void) {
p_vpi_systf_data systf_data_p;
systf_data_p = &(vpi_systf_data[0]);
while (systf_data_p->type != 0) vpi_register_systf(systf_data_p++);
}
// icarus entry
void (*vlog_startup_routines[])() = {vpi_compat_bootstrap, 0};
#else
int main(int argc, char** argv) {
const std::unique_ptr<VerilatedContext> contextp{new VerilatedContext};
uint64_t sim_time = 1100;
contextp->debug(0);
contextp->commandArgs(argc, argv);
// We're going to be checking for these errors so don't crash out
contextp->fatalOnVpiError(0);
{
// Construct and destroy
const std::unique_ptr<VM_PREFIX> topp{
new VM_PREFIX{contextp.get(),
// Note null name - we're flattening it out
""}};
}
// Test second construction
const std::unique_ptr<VM_PREFIX> topp{new VM_PREFIX{contextp.get(),
// Note null name - we're flattening it out
""}};
#ifdef VERILATOR
#ifdef TEST_VERBOSE
contextp->scopesDump();
#endif
#endif
#if VM_TRACE
contextp->traceEverOn(true);
VL_PRINTF("Enabling waves...\n");
VerilatedVcdC* tfp = new VerilatedVcdC;
topp->trace(tfp, 99);
tfp->open(STRINGIFY(TEST_OBJ_DIR) "/simx.vcd");
#endif
topp->eval();
topp->clk = 0;
contextp->timeInc(10);
while (contextp->time() < sim_time && !contextp->gotFinish()) {
contextp->timeInc(1);
topp->eval();
VerilatedVpi::callValueCbs();
topp->clk = !topp->clk;
// mon_do();
#if VM_TRACE
if (tfp) tfp->dump(contextp->time());
#endif
}
if (!contextp->gotFinish()) {
vl_fatal(FILENM, __LINE__, "main", "%Error: Timeout; never got a $finish");
}
topp->final();
#if VM_TRACE
if (tfp) tfp->close();
#endif
return 0;
}
#endif
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