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Watch out for moving nexus_ptr while adding pins to nexus.

This commit is contained in:
steve 2003-07-26 04:06:58 +00:00
parent bfe31e22bf
commit 31b1fb4ec4
1 changed files with 15 additions and 5 deletions
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20
t-dll.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#ifdef HAVE_CVS_IDENT #ifdef HAVE_CVS_IDENT
#ident "$Id: t-dll.cc,v 1.116 2003/07/05 20:42:08 steve Exp $" #ident "$Id: t-dll.cc,v 1.117 2003/07/26 04:06:58 steve Exp $"
#endif #endif
# include "config.h" # include "config.h"
@ -328,6 +328,13 @@ static void nexus_sig_add(ivl_nexus_t nex, ivl_signal_t net, unsigned pin)
nex->ptrs_[top-1].l.sig= net; nex->ptrs_[top-1].l.sig= net;
} }
/*
* Add the pin of the logic object to the nexus, and return the nexus
* pointer used for the pin.
*
* NOTE: This pointer is only valid until another pin is added to the
* nexus.
*/
static ivl_nexus_ptr_t nexus_log_add(ivl_nexus_t nex, static ivl_nexus_ptr_t nexus_log_add(ivl_nexus_t nex,
ivl_net_logic_t net, ivl_net_logic_t net,
unsigned pin) unsigned pin)
@ -640,10 +647,6 @@ bool dll_target::bufz(const NetBUFZ*net)
obj->pins_[0] = (ivl_nexus_t) net->pin(0).nexus()->t_cookie(); obj->pins_[0] = (ivl_nexus_t) net->pin(0).nexus()->t_cookie();
ivl_nexus_ptr_t out_ptr = nexus_log_add(obj->pins_[0], obj, 0); ivl_nexus_ptr_t out_ptr = nexus_log_add(obj->pins_[0], obj, 0);
assert(net->pin(1).nexus()->t_cookie());
obj->pins_[1] = (ivl_nexus_t) net->pin(1).nexus()->t_cookie();
nexus_log_add(obj->pins_[1], obj, 1);
switch (net->pin(0).drive0()) { switch (net->pin(0).drive0()) {
case Link::HIGHZ: case Link::HIGHZ:
@ -681,6 +684,10 @@ bool dll_target::bufz(const NetBUFZ*net)
break; break;
} }
assert(net->pin(1).nexus()->t_cookie());
obj->pins_[1] = (ivl_nexus_t) net->pin(1).nexus()->t_cookie();
nexus_log_add(obj->pins_[1], obj, 1);
/* Attach the logic device to the scope that contains it. */ /* Attach the logic device to the scope that contains it. */
assert(net->scope()); assert(net->scope());
@ -2136,6 +2143,9 @@ extern const struct target tgt_dll = { "dll", &dll_target_obj };
/* /*
* $Log: t-dll.cc,v $ * $Log: t-dll.cc,v $
* Revision 1.117 2003/07/26 04:06:58 steve
* Watch out for moving nexus_ptr while adding pins to nexus.
*
* Revision 1.116 2003/07/05 20:42:08 steve * Revision 1.116 2003/07/05 20:42:08 steve
* Fix some enumeration warnings. * Fix some enumeration warnings.
* *