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Get the bit widths of unary operators that return one bit.

This commit is contained in:
steve 1999-09-28 03:11:29 +00:00
parent 9f30615a91
commit 900949ab56
2 changed files with 25 additions and 4 deletions
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21
netlist.cc
View File

@ -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
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: netlist.cc,v 1.69 1999/09/23 03:56:57 steve Exp $" #ident "$Id: netlist.cc,v 1.70 1999/09/28 03:11:29 steve Exp $"
#endif #endif
# include <cassert> # include <cassert>
@ -1020,6 +1020,22 @@ NetETernary* NetETernary::dup_expr() const
assert(0); assert(0);
} }
NetEUnary::NetEUnary(char op, NetExpr*ex)
: NetExpr(ex->expr_width()), op_(op), expr_(ex)
{
switch (op_) {
case '!': // Logical not
case '&': // Reduction and
case '|': // Reduction or
case '^': // Reduction XOR
case 'A': // Reduction NAND (~&)
case 'N': // Reduction NOR (~|)
case 'X': // Reduction NXOR (~^)
expr_width(1);
break;
}
}
NetEUnary::~NetEUnary() NetEUnary::~NetEUnary()
{ {
delete expr_; delete expr_;
@ -1631,6 +1647,9 @@ NetNet* Design::find_signal(bool (*func)(const NetNet*))
/* /*
* $Log: netlist.cc,v $ * $Log: netlist.cc,v $
* Revision 1.70 1999/09/28 03:11:29 steve
* Get the bit widths of unary operators that return one bit.
*
* Revision 1.69 1999/09/23 03:56:57 steve * Revision 1.69 1999/09/23 03:56:57 steve
* Support shift operators. * Support shift operators.
* *

8
netlist.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: netlist.h,v 1.72 1999/09/25 02:57:30 steve Exp $" #ident "$Id: netlist.h,v 1.73 1999/09/28 03:11:30 steve Exp $"
#endif #endif
/* /*
@ -1427,8 +1427,7 @@ class NetETernary : public NetExpr {
class NetEUnary : public NetExpr { class NetEUnary : public NetExpr {
public: public:
NetEUnary(char op, NetExpr*ex) NetEUnary(char op, NetExpr*ex);
: NetExpr(ex->expr_width()), op_(op), expr_(ex) { }
~NetEUnary(); ~NetEUnary();
char op() const { return op_; } char op() const { return op_; }
@ -1690,6 +1689,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
/* /*
* $Log: netlist.h,v $ * $Log: netlist.h,v $
* Revision 1.73 1999/09/28 03:11:30 steve
* Get the bit widths of unary operators that return one bit.
*
* Revision 1.72 1999/09/25 02:57:30 steve * Revision 1.72 1999/09/25 02:57:30 steve
* Parse system function calls. * Parse system function calls.
* *