Elaborate combinational UDP devices.
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steve
parent
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50e47c4173
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: design_dump.cc,v 1.53 1999/11/01 02:07:40 steve Exp $"
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#ident "$Id: design_dump.cc,v 1.54 1999/11/04 01:12:41 steve Exp $"
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#endif
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/*
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@ -298,6 +298,12 @@ void NetUDP::dump_comb_(ostream&o, unsigned ind) const
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o << " #(" << rise_time() << "," << fall_time() << "," << decay_time() <<
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") " << name() << endl;
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for (CM_::const_iterator ent = cm_.begin()
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; ent != cm_.end() ; ent++) {
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o << setw(ind+6) << "" << (*ent).first << " --> " <<
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(*ent).second << endl;
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}
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dump_node_pins(o, ind+4);
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dump_obj_attr(o, ind+4);
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}
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@ -805,6 +811,9 @@ void Design::dump(ostream&o) const
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/*
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* $Log: design_dump.cc,v $
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* Revision 1.54 1999/11/04 01:12:41 steve
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* Elaborate combinational UDP devices.
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*
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* Revision 1.53 1999/11/01 02:07:40 steve
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* Add the synth functor to do generic synthesis
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* and add the LPM_FF device to handle rows of
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: netlist.cc,v 1.80 1999/11/02 04:55:34 steve Exp $"
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#ident "$Id: netlist.cc,v 1.81 1999/11/04 01:12:42 steve Exp $"
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#endif
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# include <cassert>
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@ -1587,7 +1587,7 @@ bool NetUDP::set_table(const string&input, char output)
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/* XXXX Need to check to make sure that the input vector
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contains a legal combination of characters. In
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combinational UDPs, only 0, 1 and x are allowed. */
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assert(0);
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cm_[input] = output;
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return true;
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}
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@ -1969,6 +1969,9 @@ NetNet* Design::find_signal(bool (*func)(const NetNet*))
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/*
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* $Log: netlist.cc,v $
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* Revision 1.81 1999/11/04 01:12:42 steve
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* Elaborate combinational UDP devices.
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*
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* Revision 1.80 1999/11/02 04:55:34 steve
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* Add the synthesize method to NetExpr to handle
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* synthesis of expressions, and use that method
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26
netlist.h
26
netlist.h
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@ -19,7 +19,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: netlist.h,v 1.83 1999/11/02 04:55:34 steve Exp $"
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#ident "$Id: netlist.h,v 1.84 1999/11/04 01:12:42 steve Exp $"
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#endif
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/*
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@ -569,7 +569,7 @@ class NetLogic : public NetNode {
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* In any case, pin 0 is an output, and all the remaining pins are
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* inputs.
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*
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* The truth table is canonically represented as a finite state
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* The sequential truth table is canonically represented as a finite state
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* machine with the current state representing the inputs and the
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* current output, and the next state carrying the new output value to
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* use. All the outgoing transitions from a state represent a single
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@ -598,6 +598,12 @@ class NetLogic : public NetNode {
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* _ -- 10 or x0 (Note that this is not the output '-'.)
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* % -- 0x or 1x
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*
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* SEQUENTIAL
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* These objects have a single bit of memory. The logic table includes
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* an entry for the current value, and allows edges on the inputs. In
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* canonical form, inly then entries that generate 0, 1 or - (no change)
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* are listed.
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*
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* COMBINATIONAL
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* The logic table is a map between the input levels and the
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* output. Each input pin can have the value 0, 1 or x and the output
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@ -605,12 +611,6 @@ class NetLogic : public NetNode {
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* output is x. In canonical form, only the entries that generate 0 or
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* 1 are listed.
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*
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* SEQUENTIAL
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* These objects have a single bit of memory. The logic table includes
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* an entry for the current value, and allows edges on the inputs. In
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* canonical form, inly then entries that generate 0, 1 or - (no change)
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* are listed.
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*
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*/
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class NetUDP : public NetNode {
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@ -636,7 +636,7 @@ class NetUDP : public NetNode {
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bool is_sequential() const { return sequential_; }
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private:
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const bool sequential_;
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bool sequential_;
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char init_;
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struct state_t_;
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@ -663,6 +663,11 @@ class NetUDP : public NetNode {
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state_t_*find_state_(const string&);
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// A combinational primitive is more simply represented as a
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// simple map of input signals to a single output.
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typedef map<string,char> CM_;
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CM_ cm_;
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void dump_sequ_(ostream&o, unsigned ind) const;
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void dump_comb_(ostream&o, unsigned ind) const;
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};
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@ -1794,6 +1799,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
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/*
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* $Log: netlist.h,v $
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* Revision 1.84 1999/11/04 01:12:42 steve
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* Elaborate combinational UDP devices.
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*
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* Revision 1.83 1999/11/02 04:55:34 steve
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* Add the synthesize method to NetExpr to handle
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* synthesis of expressions, and use that method
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