iverilog/ivtest/vpi/hello_poke.c

81 lines
2.2 KiB
C

/*
* Copyright (c) 2001 Picture Elements, Inc.
* Stephen Williams (steve@picturel.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 <vpi_user.h>
# include <assert.h>
#ifdef IVERILOG_V0_8
static PLI_INT32 my_hello_calltf(char *xx)
#else
static PLI_INT32 my_hello_calltf(PLI_BYTE8 *xx)
#endif
{
s_vpi_value value;
(void)xx; /* Parameter is not used. */
vpiHandle sys = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv = vpi_iterate(vpiArgument, sys);
vpiHandle arg;
if (argv == 0) {
vpi_printf("ERROR: $hello_poke requires one argument\n");
vpi_sim_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
assert(arg != 0);
value.format = vpiStringVal;
value.value.str = "Hello";
vpi_put_value(arg, &value, 0, vpiNoDelay);
arg = vpi_scan(argv);
if (arg != 0) {
vpi_printf("ERROR: too many arguments to $hello_poke\n");
vpi_sim_control(vpiFinish, 1);
}
return 0;
}
static void my_hello_register(void)
{
s_vpi_systf_data tf_data;
tf_data.type = vpiSysTask;
tf_data.tfname = "$hello_poke";
tf_data.calltf = my_hello_calltf;
tf_data.compiletf = 0;
tf_data.sizetf = 0;
vpi_register_systf(&tf_data);
}
/*
* This is a table of register functions. This table is the external
* symbol that the simulator looks for when loading this .vpi module.
*/
void (*vlog_startup_routines[])(void) = {
my_hello_register,
0
};