78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* Copyright (c) 2003-2010 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <veriuser.h>
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#include <vpi_user.h>
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#include "priv.h"
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#include <assert.h>
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static PLI_INT32 delay_callback(struct t_cb_data*cb)
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{
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vpi_printf("XXXX delay_callback called.\n");
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return 0;
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}
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int tf_isetdelay(PLI_INT32 delay, void*ss)
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{
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vpiHandle sys = (vpiHandle)ss;
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int unit = vpi_get(vpiTimeUnit, sys);
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int prec = vpi_get(vpiTimePrecision, 0);
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struct t_cb_data cb;
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struct t_vpi_time ct;
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if (pli_trace) {
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fprintf(pli_trace, "%s: tf_isetdelay(%d, ...)"
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" <unit=%d, prec=%d>;\n",
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vpi_get_str(vpiName, sys), delay, unit, prec);
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}
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/* Convert the delay from the UNITS of the specified
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task/function to the precision of the simulation. */
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assert(unit >= prec);
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while (unit > prec) {
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PLI_INT32 tmp = delay * 10;
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assert(tmp > delay);
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delay = tmp;
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unit -= 1;
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}
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/* Create a VPI callback to schedule the delay. */
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ct.type = vpiSimTime;
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ct.high = 0;
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ct.low = delay;
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cb.reason = cbAfterDelay;
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cb.cb_rtn = delay_callback;
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cb.obj = 0;
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cb.time = &ct;
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cb.value = 0;
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cb.user_data = 0;
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vpi_register_cb(&cb);
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return 0;
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}
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int tf_setdelay(PLI_INT32 delay)
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{
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return tf_isetdelay(delay, tf_getinstance());
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}
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