101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2003 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
|
|
*/
|
|
#ifdef HAVE_CVS_IDENT
|
|
#ident "$Id: delay.c,v 1.3 2003/06/17 16:55:07 steve Exp $"
|
|
#endif
|
|
|
|
#include <veriuser.h>
|
|
#include <vpi_user.h>
|
|
#include "priv.h"
|
|
#include <assert.h>
|
|
|
|
static PLI_INT32 delay_callback(struct t_cb_data*cb)
|
|
{
|
|
vpi_printf("XXXX delay_callback called.\n");
|
|
return 0;
|
|
}
|
|
|
|
int tf_isetdelay(PLI_INT32 delay, void*ss)
|
|
{
|
|
vpiHandle sys = (vpiHandle)ss;
|
|
int unit = vpi_get(vpiTimeUnit, sys);
|
|
int prec = vpi_get(vpiTimePrecision, 0);
|
|
|
|
struct t_cb_data cb;
|
|
struct t_vpi_time ct;
|
|
|
|
if (pli_trace) {
|
|
fprintf(pli_trace, "%s: tf_isetdelay(%d, ...)"
|
|
" <unit=%d, prec=%d>;\n",
|
|
vpi_get_str(vpiName, sys), delay, unit, prec);
|
|
}
|
|
|
|
|
|
/* Convert the delay from the UNITS of the specified
|
|
task/function to the precision of the simulation. */
|
|
assert(unit >= prec);
|
|
|
|
while (unit > prec) {
|
|
PLI_INT32 tmp = delay * 10;
|
|
assert(tmp > delay);
|
|
delay = tmp;
|
|
unit -= 1;
|
|
}
|
|
|
|
/* Create a VPI callback to schedule the delay. */
|
|
ct.type = vpiSimTime;
|
|
ct.high = 0;
|
|
ct.low = delay;
|
|
|
|
cb.reason = cbAfterDelay;
|
|
cb.cb_rtn = delay_callback;
|
|
cb.obj = 0;
|
|
cb.time = &ct;
|
|
cb.value = 0;
|
|
cb.user_data = 0;
|
|
vpi_register_cb(&cb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int tf_setdelay(PLI_INT32 delay)
|
|
{
|
|
return tf_isetdelay(delay, tf_getinstance());
|
|
}
|
|
|
|
/*
|
|
* $Log: delay.c,v $
|
|
* Revision 1.3 2003/06/17 16:55:07 steve
|
|
* 1) setlinebuf() for vpi_trace
|
|
* 2) Addes error checks for trace file opens
|
|
* 3) removes now extraneous flushes
|
|
* 4) fixes acc_next() bug
|
|
*
|
|
* Revision 1.2 2003/05/28 02:42:43 steve
|
|
* compiler warnings.
|
|
*
|
|
* Revision 1.1 2003/05/18 00:16:35 steve
|
|
* Add PLI_TRACE tracing of PLI1 modules.
|
|
*
|
|
* Add tf_isetdelay and friends, and add
|
|
* callback return values for acc_vcl support.
|
|
*
|
|
*/
|
|
|