159 lines
4.1 KiB
C
159 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 1999 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
|
|
*/
|
|
#if !defined(WINNT) && !defined(macintosh)
|
|
#ident "$Id: vpi_signal.c,v 1.10 2000/05/18 03:27:32 steve Exp $"
|
|
#endif
|
|
|
|
# include "vpi_priv.h"
|
|
# include <assert.h>
|
|
|
|
|
|
static int signal_get(int code, vpiHandle ref)
|
|
{
|
|
struct __vpiSignal*rfp = (struct __vpiSignal*)ref;
|
|
|
|
assert((ref->vpi_type->type_code==vpiNet)
|
|
|| (ref->vpi_type->type_code==vpiReg));
|
|
|
|
switch (code) {
|
|
case vpiSize:
|
|
return rfp->nbits;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static char* signal_get_str(int code, vpiHandle ref)
|
|
{
|
|
struct __vpiSignal*rfp = (struct __vpiSignal*)ref;
|
|
|
|
assert((ref->vpi_type->type_code==vpiNet)
|
|
|| (ref->vpi_type->type_code==vpiReg));
|
|
|
|
switch (code) {
|
|
|
|
case vpiFullName:
|
|
return (char*)rfp->name;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void signal_get_value(vpiHandle ref, s_vpi_value*vp)
|
|
{
|
|
struct __vpiSignal*rfp = (struct __vpiSignal*)ref;
|
|
assert((ref->vpi_type->type_code==vpiNet)
|
|
|| (ref->vpi_type->type_code==vpiReg));
|
|
|
|
vpip_bits_get_value(rfp->bits, rfp->nbits, vp);
|
|
}
|
|
|
|
static void signal_put_value(vpiHandle ref, s_vpi_value*vp,
|
|
p_vpi_time when, int flags)
|
|
{
|
|
struct __vpiSignal*rfp = (struct __vpiSignal*)ref;
|
|
assert((ref->vpi_type->type_code==vpiNet)
|
|
|| (ref->vpi_type->type_code==vpiReg));
|
|
|
|
vpip_bits_set_value(rfp->bits, rfp->nbits, vp);
|
|
}
|
|
|
|
static const struct __vpirt vpip_net_rt = {
|
|
vpiNet,
|
|
signal_get,
|
|
signal_get_str,
|
|
signal_get_value,
|
|
signal_put_value,
|
|
0,
|
|
0
|
|
};
|
|
|
|
vpiHandle vpip_make_net(struct __vpiSignal*ref, const char*name,
|
|
vpip_bit_t*b, unsigned nb)
|
|
{
|
|
ref->base.vpi_type = &vpip_net_rt;
|
|
ref->name = name;
|
|
ref->bits = b;
|
|
ref->nbits = nb;
|
|
ref->mfirst = 0;
|
|
ref->mlast = 0;
|
|
return &(ref->base);
|
|
}
|
|
|
|
static const struct __vpirt vpip_reg_rt = {
|
|
vpiReg,
|
|
signal_get,
|
|
signal_get_str,
|
|
signal_get_value,
|
|
signal_put_value,
|
|
0,
|
|
0
|
|
};
|
|
|
|
vpiHandle vpip_make_reg(struct __vpiSignal*ref, const char*name,
|
|
vpip_bit_t*b, unsigned nb)
|
|
{
|
|
ref->base.vpi_type = &vpip_reg_rt;
|
|
ref->name = name;
|
|
ref->bits = b;
|
|
ref->nbits = nb;
|
|
ref->mfirst = 0;
|
|
ref->mlast = 0;
|
|
return &(ref->base);
|
|
}
|
|
|
|
/*
|
|
* $Log: vpi_signal.c,v $
|
|
* Revision 1.10 2000/05/18 03:27:32 steve
|
|
* Support writing scalars and vectors to signals.
|
|
*
|
|
* Revision 1.9 2000/03/31 07:08:39 steve
|
|
* allow cancelling of cbValueChange events.
|
|
*
|
|
* Revision 1.8 2000/03/25 05:02:25 steve
|
|
* signal bits are referenced at run time by the vpiSignal struct.
|
|
*
|
|
* Revision 1.7 2000/02/23 02:56:56 steve
|
|
* Macintosh compilers do not support ident.
|
|
*
|
|
* Revision 1.6 1999/12/15 04:01:14 steve
|
|
* Add the VPI implementation of $readmemh.
|
|
*
|
|
* Revision 1.5 1999/11/07 20:33:30 steve
|
|
* Add VCD output and related system tasks.
|
|
*
|
|
* Revision 1.4 1999/11/07 02:25:08 steve
|
|
* Add the $monitor implementation.
|
|
*
|
|
* Revision 1.3 1999/11/06 16:52:16 steve
|
|
* complete value retrieval for number constants.
|
|
*
|
|
* Revision 1.2 1999/10/29 03:37:22 steve
|
|
* Support vpiValueChance callbacks.
|
|
*
|
|
* Revision 1.1 1999/10/28 00:47:25 steve
|
|
* Rewrite vvm VPI support to make objects more
|
|
* persistent, rewrite the simulation scheduler
|
|
* in C (to interface with VPI) and add VPI support
|
|
* for callbacks.
|
|
*
|
|
*/
|
|
|