iverilog/vpi/sys_icarus.c

60 lines
1.8 KiB
C

/*
* Copyright (C) 2008 Cary R. (cygcary@yahoo.com)
*
* This program is free software; you can redistribute it and/or modify
* it 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <assert.h>
#include <vpi_user.h>
#include "sys_priv.h"
static PLI_INT32 finish_and_return_calltf(PLI_BYTE8* name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv = vpi_iterate(vpiArgument, callh);
vpiHandle arg;
s_vpi_value val;
(void) name; /* Not used! */
/* Get the return value. */
arg = vpi_scan(argv);
vpi_free_object(argv);
val.format = vpiIntVal;
vpi_get_value(arg, &val);
/* Set the return value. */
vpip_set_return_value(val.value.integer);
/* Now finish. */
vpi_control(vpiFinish, 1);
return 0;
}
/*
* Register the function with Verilog.
*/
void sys_special_register(void)
{
s_vpi_systf_data tf_data;
tf_data.type = vpiSysTask;
tf_data.calltf = finish_and_return_calltf;
tf_data.compiletf = sys_one_numeric_arg_compiletf;
tf_data.sizetf = 0;
tf_data.tfname = "$finish_and_return";
tf_data.user_data = "$finish_and_return";
vpi_register_systf(&tf_data);
}