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

Handle evaluate of addition of real valued constants.

This commit is contained in:
steve 2007-04-07 04:46:18 +00:00
parent af913e7eb1
commit 33e5f22cf1
4 changed files with 121 additions and 89 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

173
eval_tree.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: eval_tree.cc,v 1.74 2007/03/08 05:30:02 steve Exp $"
#ident "$Id: eval_tree.cc,v 1.75 2007/04/07 04:46:18 steve Exp $"
#endif
# include "config.h"
@ -26,6 +26,7 @@
# include <iostream>
# include "netlist.h"
# include "ivl_assert.h"
NetExpr* NetExpr::eval_tree(int prune_to_width)
{
@ -51,9 +52,61 @@ void NetEBinary::eval_sub_tree_()
}
}
NetEConst* NetEBAdd::eval_tree(int prune_to_width)
bool NetEBinary::get_real_arguments_(verireal&lval, verireal&rval)
{
switch (left_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*lc = dynamic_cast<NetECReal*> (left_);
if (lc == 0) return false;
lval = lc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*lc = dynamic_cast<NetEConst*>(left_);
if (lc == 0) return false;
verinum tmp = lc->value();
lval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
switch (right_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*rc = dynamic_cast<NetECReal*> (right_);
if (rc == 0) return 0;
rval = rc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*rc = dynamic_cast<NetEConst*>(right_);
if (rc == 0) return 0;
verinum tmp = rc->value();
rval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
return true;
}
NetExpr* NetEBAdd::eval_tree(int prune_to_width)
{
eval_sub_tree_();
if (left_->expr_type() == IVL_VT_REAL || right_->expr_type()==IVL_VT_REAL)
return eval_tree_real_();
NetEConst*lc = dynamic_cast<NetEConst*>(left_);
NetEConst*rc = dynamic_cast<NetEConst*>(right_);
@ -115,6 +168,31 @@ NetEConst* NetEBAdd::eval_tree(int prune_to_width)
return 0;
}
NetECReal* NetEBAdd::eval_tree_real_()
{
verireal lval;
verireal rval;
bool flag = get_real_arguments_(lval, rval);
if (!flag) return 0;
verireal res_val;
switch (op()) {
case '+':
res_val = lval + rval;
break;
case '-':
res_val = lval - rval;
break;
default:
ivl_assert(*this, 0);
}
NetECReal*res = new NetECReal( res_val );
res->set_line(*this);
return res;
}
NetEConst* NetEBBits::eval_tree(int prune_to_width)
{
eval_sub_tree_();
@ -864,52 +942,14 @@ NetEConst* NetEBLogic::eval_tree(int prune_to_width)
return new NetEConst(verinum(res, 1));
}
NetExpr* NetEBMult::eval_tree_real_()
{
verireal lval;
verireal rval;
switch (left_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*lc = dynamic_cast<NetECReal*> (left_);
if (lc == 0) return 0;
lval = lc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*lc = dynamic_cast<NetEConst*>(left_);
if (lc == 0) return 0;
verinum tmp = lc->value();
lval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
switch (right_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*rc = dynamic_cast<NetECReal*> (right_);
if (rc == 0) return 0;
rval = rc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*rc = dynamic_cast<NetEConst*>(right_);
if (rc == 0) return 0;
verinum tmp = rc->value();
rval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
bool flag = get_real_arguments_(lval, rval);
if (! flag) return 0;
NetECReal*res = new NetECReal(lval * rval);
@ -942,48 +982,8 @@ NetExpr* NetEBPow::eval_tree_real_()
verireal lval;
verireal rval;
switch (left_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*lc = dynamic_cast<NetECReal*> (left_);
if (lc == 0) return 0;
lval = lc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*lc = dynamic_cast<NetEConst*>(left_);
if (lc == 0) return 0;
verinum tmp = lc->value();
lval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
switch (right_->expr_type()) {
case IVL_VT_REAL: {
NetECReal*rc = dynamic_cast<NetECReal*> (right_);
if (rc == 0) return 0;
rval = rc->value();
break;
}
case IVL_VT_BOOL:
case IVL_VT_LOGIC: {
NetEConst*rc = dynamic_cast<NetEConst*>(right_);
if (rc == 0) return 0;
verinum tmp = rc->value();
rval = verireal(tmp.as_long());
break;
}
default:
assert(0);
}
bool flag = get_real_arguments_(lval, rval);
if (! flag) return 0;
NetECReal*res = new NetECReal( pow(lval,rval) );
res->set_line(*this);
@ -1655,6 +1655,9 @@ NetEConst* NetEUReduce::eval_tree(int prune_to_width)
/*
* $Log: eval_tree.cc,v $
* Revision 1.75 2007/04/07 04:46:18 steve
* Handle evaluate of addition of real valued constants.
*
* Revision 1.74 2007/03/08 05:30:02 steve
* Limit the calculated widths of constants.
*

11
netlist.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: netlist.h,v 1.375 2007/04/02 01:12:34 steve Exp $"
#ident "$Id: netlist.h,v 1.376 2007/04/07 04:46:18 steve Exp $"
#endif
/*
@ -2622,6 +2622,7 @@ class NetEBinary : public NetExpr {
NetExpr* right_;
void eval_sub_tree_();
bool get_real_arguments_(verireal&lv, verireal&rv);
};
/*
@ -2641,8 +2642,11 @@ class NetEBAdd : public NetEBinary {
virtual bool set_width(unsigned w, bool last_chance);
virtual NetEBAdd* dup_expr() const;
virtual NetEConst* eval_tree(int prune_to_width = -1);
virtual NetExpr* eval_tree(int prune_to_width = -1);
virtual NetNet* synthesize(Design*);
private:
NetECReal* eval_tree_real_();
};
/*
@ -3498,6 +3502,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
/*
* $Log: netlist.h,v $
* Revision 1.376 2007/04/07 04:46:18 steve
* Handle evaluate of addition of real valued constants.
*
* Revision 1.375 2007/04/02 01:12:34 steve
* Seperate arrayness from word count
*

19
verireal.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: verireal.cc,v 1.18 2006/10/03 05:06:00 steve Exp $"
#ident "$Id: verireal.cc,v 1.19 2007/04/07 04:46:18 steve Exp $"
#endif
# include "config.h"
@ -104,6 +104,20 @@ double verireal::as_double() const
return value_;
}
verireal operator+ (const verireal&l, const verireal&r)
{
verireal res;
res.value_ = l.value_ + r.value_;
return res;
}
verireal operator- (const verireal&l, const verireal&r)
{
verireal res;
res.value_ = l.value_ - r.value_;
return res;
}
verireal operator* (const verireal&l, const verireal&r)
{
verireal res;
@ -161,6 +175,9 @@ ostream& operator<< (ostream&out, const verireal&v)
/*
* $Log: verireal.cc,v $
* Revision 1.19 2007/04/07 04:46:18 steve
* Handle evaluate of addition of real valued constants.
*
* Revision 1.18 2006/10/03 05:06:00 steve
* Support real valued specify delays, properly scaled.
*

7
verireal.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: verireal.h,v 1.15 2007/02/02 04:33:01 steve Exp $"
#ident "$Id: verireal.h,v 1.16 2007/04/07 04:46:19 steve Exp $"
#endif
# include "config.h"
@ -43,6 +43,8 @@ class verinum;
class verireal {
friend ostream& operator<< (ostream&, const verireal&);
friend verireal operator+ (const verireal&, const verireal&);
friend verireal operator- (const verireal&, const verireal&);
friend verireal operator* (const verireal&, const verireal&);
friend verireal operator/ (const verireal&, const verireal&);
friend verireal operator/ (const verireal&, const verinum&);
@ -85,6 +87,9 @@ extern verireal operator- (const verireal&);
/*
* $Log: verireal.h,v $
* Revision 1.16 2007/04/07 04:46:19 steve
* Handle evaluate of addition of real valued constants.
*
* Revision 1.15 2007/02/02 04:33:01 steve
* Use inttypes.h instead of stdint.h for portability.
*