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// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
//
// Copyright 2009-2009 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"
//======================================================================
#if defined(VERILATOR)
# ifdef T_DPI_CONTEXT_NOOPT
# include "Vt_dpi_context_noopt__Dpi.h"
# else
# include "Vt_dpi_context__Dpi.h"
# endif
#elif defined(VCS)
# include "../vc_hdrs.h"
#elif defined(CADENCE)
# define NEED_EXTERNS
#else
# error "Unknown simulator for DPI test"
#endif
#ifdef VERILATOR
# include "verilated.h"
#endif
#ifdef NEED_EXTERNS
extern "C" {
extern int dpic_line();
extern int dpic_save(int value);
extern int dpic_restore();
extern unsigned dpic_getcontext();
}
#endif
//======================================================================
int dpic_line() {
svScope scope = svGetScope();
if (!scope) {
printf("%%Warning: svGetScope failed\n");
return 0;
}
#ifdef VERILATOR
static int didDump = 0;
if (didDump++ == 0) { Verilated::scopesDump(); }
#endif
const char* scopenamep = svGetNameFromScope(scope);
if (!scopenamep) {
printf("%%Warning: svGetNameFromScope failed\n");
return 0;
}
if (scope != svGetScopeFromName(scopenamep)) {
printf("%%Warning: svGetScopeFromName repeat failed\n");
return 0;
}
const char* filenamep = "";
int lineno = 0;
if (svGetCallerInfo(&filenamep, &lineno)) {
printf("Call from %s:%d:%s\n", filenamep, lineno, scopenamep);
} else {
printf("%%Warning: svGetCallerInfo failed\n");
return 0;
}
return lineno;
}
extern int Dpic_Unique;
int Dpic_Unique = 0; // Address used for uniqueness
int dpic_save(int value) {
svScope scope = svGetScope();
if (!scope) {
printf("%%Warning: svGetScope failed\n");
return 0;
}
// Use union to avoid cast to different size pointer warnings
union valpack {
void* ptr;
int i;
} vp;
vp.i = value; if (vp.i) { }
if (svPutUserData(scope, &Dpic_Unique, vp.ptr)) {
printf("%%Warning: svPutUserData failed\n");
return 0;
}
return 1;
}
int dpic_restore() {
svScope scope = svGetScope();
if (!scope) {
printf("%%Warning: svGetScope failed\n");
return 0;
}
if (void* userp = svGetUserData(scope, (void*)&Dpic_Unique)) {
// Use union to avoid cast to different size pointer warnings
union valpack {
void* ptr;
int i;
} vp;
vp.ptr = userp;
return vp.i;
} else {
printf("%%Warning: svGetUserData failed\n");
return 0;
}
}
unsigned dpic_getcontext() {
svScope scope = svGetScope();
printf("%%Info: svGetScope returned scope (%p) with name %s\n",
scope, svGetNameFromScope(scope));
return (unsigned)(uintptr_t)scope;
}
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