luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

vvm support for pullup/down gates (PR#288)

This commit is contained in:
steve 2001-10-14 03:50:53 +00:00
parent 1b69bb5d2f
commit 9dbcb32808
3 changed files with 79 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
t-vvm.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: t-vvm.cc,v 1.212 2001/08/25 23:50:03 steve Exp $"
#ident "$Id: t-vvm.cc,v 1.213 2001/10/14 03:50:53 steve Exp $"
#endif
# include "config.h"
@ -1997,8 +1997,14 @@ void target_vvm::logic(const NetLogic*gate)
out << "static vvm_xor " << mname << "("
<< (gate->pin_count()-1 ) << ", ";
break;
case NetLogic::PULLDOWN:
out << "static vvm_pulldown " << mname << "(";
break;
case NetLogic::PULLUP:
out << "static vvm_pullup " << mname << "(";
break;
default:
out << "#error \"internal ivl error:bad gate type for " <<
out << "#error \"internal ivl error:bad gate type " << gate->type() << " for " <<
gate->name() << "\"" << endl;
}
@ -3652,6 +3658,9 @@ extern const struct target tgt_vvm = {
};
/*
* $Log: t-vvm.cc,v $
* Revision 1.213 2001/10/14 03:50:53 steve
* vvm support for pullup/down gates (PR#288)
*
* Revision 1.212 2001/08/25 23:50:03 steve
* Change the NetAssign_ class to refer to the signal
* instead of link into the netlist. This is faster

41
vvm/vvm_gates.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_gates.cc,v 1.22 2001/07/25 03:10:50 steve Exp $"
#ident "$Id: vvm_gates.cc,v 1.23 2001/10/14 03:50:53 steve Exp $"
#endif
# include "config.h"
@ -839,8 +839,47 @@ void vvm_xor::take_value(unsigned key, vpip_bit_t val)
output(compute_xor(input_, width_));
}
vvm_pullup::vvm_pullup(unsigned d)
: vvm_1bit_out(d)
{
}
void vvm_pullup::start()
{
output(St1);
}
void vvm_pullup::take_value(unsigned key, vpip_bit_t val)
{
}
vvm_pullup::~vvm_pullup()
{
}
vvm_pulldown::vvm_pulldown(unsigned d)
: vvm_1bit_out(d)
{
}
void vvm_pulldown::start()
{
output(St0);
}
void vvm_pulldown::take_value(unsigned key, vpip_bit_t val)
{
}
vvm_pulldown::~vvm_pulldown()
{
}
/*
* $Log: vvm_gates.cc,v $
* Revision 1.23 2001/10/14 03:50:53 steve
* vvm support for pullup/down gates (PR#288)
*
* Revision 1.22 2001/07/25 03:10:50 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)

29
vvm/vvm_gates.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_gates.h,v 1.71 2001/04/22 23:09:46 steve Exp $"
#ident "$Id: vvm_gates.h,v 1.72 2001/10/14 03:50:53 steve Exp $"
#endif
# include "vvm.h"
@ -864,6 +864,30 @@ class vvm_bufz : public vvm_nexus::recvr_t, public vvm_1bit_out {
void take_value(unsigned, vpip_bit_t val);
};
/*
* The pullup is a trivial device that drives a logic 1 onto its output.
*/
class vvm_pullup : public vvm_nexus::recvr_t, public vvm_1bit_out {
public:
explicit vvm_pullup(unsigned delay =0);
~vvm_pullup();
void start();
private:
void take_value(unsigned, vpip_bit_t val);
};
/*
* The pulldown is a trivial device that drives a logic 0 onto its output.
*/
class vvm_pulldown : public vvm_nexus::recvr_t, public vvm_1bit_out {
public:
explicit vvm_pulldown(unsigned delay =0);
~vvm_pulldown();
void start();
private:
void take_value(unsigned, vpip_bit_t val);
};
/*
* Threads use the vvm_sync to wait for something to happen. This
* class cooperates with the various event source classes that receive
@ -960,6 +984,9 @@ class vvm_posedge : public vvm_nexus::recvr_t {
/*
* $Log: vvm_gates.h,v $
* Revision 1.72 2001/10/14 03:50:53 steve
* vvm support for pullup/down gates (PR#288)
*
* Revision 1.71 2001/04/22 23:09:46 steve
* More UDP consolidation from Stephan Boettcher.
*