verilator/test_regress/t/t_time_vpi_c.cpp
Wilson Snyder d4f7f5297a
Support IEEE time units and time precisions, #234. (#2253)
Includes `timescale, $printtimescale, $timeformat.
VL_TIME_MULTIPLIER, VL_TIME_PRECISION, VL_TIME_UNIT have been removed
and the time precision must now match the SystemC time precision.
To get closer behavior to older versions, use e.g. --timescale-override
"1ps/1ps".
2020-04-15 19:39:03 -04:00

63 lines
1.8 KiB
C++

// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
//
// Copyright 2009-2011 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
//
//*************************************************************************
#include <cstdio>
#include "svdpi.h"
#include "vpi_user.h"
//======================================================================
#define NEED_EXTERNS
#ifdef NEED_EXTERNS
extern "C" {
extern void dpii_check();
}
#endif
//======================================================================
void show(vpiHandle obj) {
const char* namep;
if (obj) {
namep = vpi_get_str(vpiName, obj);
} else {
namep = "global";
}
s_vpi_time t;
t.type = vpiSimTime;
vpi_get_time(obj, &t);
vpi_printf(const_cast<char*>("%s vpiSimTime = %d,%d"), namep, (int)t.high, (int)t.low);
// Should be same value as vpiSimTime, just converted to real
t.type = vpiScaledRealTime;
vpi_get_time(obj, &t);
vpi_printf(const_cast<char*>(" vpiScaledRealTime = %g\n"), t.real);
// These will both print the precision, because the 0 asks for global scope
int u = vpi_get(vpiTimeUnit, obj);
int p = vpi_get(vpiTimePrecision, obj);
vpi_printf(const_cast<char*>("%s vpiTimeUnit = %d"), namep, u);
vpi_printf(const_cast<char*>(" vpiTimePrecision = %d\n"), p);
}
void dpii_check() {
show(0);
vpiHandle mod = vpi_handle_by_name((PLI_BYTE8*)"top.t", NULL);
if (!mod) {
vpi_printf(const_cast<char*>("-- Cannot vpi_find module\n"));
} else {
show(mod);
}
}