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Fix pullup/pulldown behaviour for tri1/tri0 nets. 

Currently vvp only applies the pullup/pulldown for tri1/tri0 nets when
the net is not driven. The correct behaviour is to treat the pullup/
pulldown as an extra driver (with pull strength).
This commit is contained in:
Martin Whitaker 2013-10-25 19:55:04 +01:00
parent 92e08fdcd8
commit 1814c24a90
1 changed files with 3 additions and 3 deletions
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6
vvp/resolv.cc
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2001-2010,2012 Stephen Williams (steve@icarus.com) * Copyright (c) 2001-2013 Stephen Williams (steve@icarus.com)
* *
* This source code is free software; you can redistribute it * This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU * and/or modify it in source code form under the terms of the GNU
@ -170,8 +170,8 @@ void resolv_tri::recv_vec8_(unsigned port, const vvp_vector8_t&bit)
if (! hiz_value_.is_hiz()) { if (! hiz_value_.is_hiz()) {
for (unsigned idx = 0 ; idx < val_[base].size() ; idx += 1) { for (unsigned idx = 0 ; idx < val_[base].size() ; idx += 1) {
if (val_[base].value(idx).is_hiz()) val_[base].set_bit(idx, resolve(val_[base].value(idx),
val_[base].set_bit(idx, hiz_value_); hiz_value_));
} }
} }