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vvp.c
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vvp.c
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/*
* Copyright (c) 2001-2007 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/*
*/
# include "vvp_priv.h"
# include <string.h>
# include <assert.h>
# include <sys/types.h>
# include <sys/stat.h>
FILE*vvp_out = 0;
int vvp_errors = 0;
inline static void draw_execute_header(ivl_design_t des)
{
#if !defined(__MINGW32__)
const char*cp = ivl_design_flag(des, "VVP_EXECUTABLE");
if (cp) {
fprintf(vvp_out, "#! %s\n", cp);
fchmod(fileno(vvp_out), 0755);
}
#endif
}
inline static void draw_module_declarations(ivl_design_t des)
{
const char*cp = ivl_design_flag(des, "VPI_MODULE_LIST");
while (*cp) {
char buffer[128];
const char*comma = strchr(cp, ',');
if (comma == 0)
comma = cp + strlen(cp);
strncpy(buffer, cp, comma-cp);
buffer[comma-cp] = 0;
fprintf(vvp_out, ":vpi_module \"%s\";\n", buffer);
cp = comma;
if (*cp) cp += 1;
}
}
int target_design(ivl_design_t des)
{
int rc;
ivl_scope_t *roots;
unsigned nroots, i;
const char*path = ivl_design_flag(des, "-o");
assert(path);
#ifdef HAVE_FOPEN64
vvp_out = fopen64(path, "w");
#else
vvp_out = fopen(path, "w");
#endif
if (vvp_out == 0) {
perror(path);
return -1;
}
vvp_errors = 0;
draw_execute_header(des);
{ int pre = ivl_design_time_precision(des);
char sign = '+';
if (pre < 0) {
pre = -pre;
sign = '-';
}
fprintf(vvp_out, ":vpi_time_precision %c %d;\n", sign, pre);
}
draw_module_declarations(des);
/* This causes all structural records to be drawn. */
ivl_design_roots(des, &roots, &nroots);
for (i = 0; i < nroots; i++)
draw_scope(roots[i], 0);
/* Finish up any modpaths that are not yet emitted. */
cleanup_modpath();
rc = ivl_design_process(des, draw_process, 0);
/* Dump the file name table. */
unsigned size = ivl_file_table_size();
fprintf(vvp_out, "# The file index is used to find the file name in "
"the following table.\n:file_names %u;\n", size);
unsigned idx;
for (idx = 0; idx < size; idx++) {
fprintf(vvp_out, " \"%s\";\n", ivl_file_table_item(idx));
}
fclose(vvp_out);
return rc + vvp_errors;
}