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Handle inverted clock into OUTFF.

This commit is contained in:
steve 1999-11-19 05:02:15 +00:00
parent 8b81d6e416
commit 28149e73e3
1 changed files with 15 additions and 2 deletions
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17
xnfio.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: xnfio.cc,v 1.7 1999/11/19 03:02:25 steve Exp $"
#ident "$Id: xnfio.cc,v 1.8 1999/11/19 05:02:15 steve Exp $"
#endif
# include "functor.h"
@ -152,10 +152,14 @@ static void absorb_OFF(Design*des, NetLogic*buf)
return;
if (count_inputs(buf->pin(1)) != 1)
return;
/* For now, only support OUTFF. */
if (buf->type() != NetLogic::BUF)
return;
NetObj::Link*drv = find_next_output(&buf->pin(1));
assert(drv);
/* Make sure the device is a FF with width 1. */
NetFF*ff = dynamic_cast<NetFF*>(drv->get_obj());
if (ff == 0)
return;
@ -175,13 +179,19 @@ static void absorb_OFF(Design*des, NetLogic*buf)
for (unsigned idx = 0 ; idx < ff->pin_count() ; idx += 1)
names[idx] = "";
names[ff->pin_Clock().get_pin()] = "C";
if (ff->attribute("Clock:LPM_Polarity") == "INVERT")
names[ff->pin_Clock().get_pin()] = "~C";
else
names[ff->pin_Clock().get_pin()] = "C";
names[ff->pin_Data(0).get_pin()] = "D";
names[ff->pin_Q(0).get_pin()] = "Q";
string lname = string("OUTFF:") + names[0];
for (unsigned idx = 1 ; idx < ff->pin_count() ; idx += 1)
lname = lname + "," + names[idx];
delete[]names;
ff->attribute("XNF-LCA", lname);
}
@ -272,6 +282,9 @@ void xnfio(Design*des)
/*
* $Log: xnfio.cc,v $
* Revision 1.8 1999/11/19 05:02:15 steve
* Handle inverted clock into OUTFF.
*
* Revision 1.7 1999/11/19 03:02:25 steve
* Detect flip-flops connected to opads and turn
* them into OUTFF devices. Inprove support for