Add support for procedural concatenation expression.
This commit is contained in:
steve
parent
1fe8e93e5c
commit
1464851e0e
6
PExpr.h
6
PExpr.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: PExpr.h,v 1.9 1999/05/16 05:08:42 steve Exp $"
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#ident "$Id: PExpr.h,v 1.10 1999/06/09 03:00:05 steve Exp $"
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#endif
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# include <string>
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@ -75,6 +75,7 @@ class PEConcat : public PExpr {
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virtual void dump(ostream&) const;
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virtual NetNet* elaborate_net(Design*des, const string&path) const;
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virtual NetExpr*elaborate_expr(Design*des, const string&path) const;
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private:
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svector<PExpr*>parms_;
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@ -196,6 +197,9 @@ class PEBinary : public PExpr {
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/*
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* $Log: PExpr.h,v $
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* Revision 1.10 1999/06/09 03:00:05 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.9 1999/05/16 05:08:42 steve
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* Redo constant expression detection to happen
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* after parsing.
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71
README.txt
71
README.txt
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@ -223,10 +223,73 @@ IVL is in development - as such it still only supports a (growing) subset
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of verilog. Below is a description of some of the currently unsupported
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verilog features.
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- Lvalue bit ranges - Example: regvalue [7:3] = 5'b0;
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- Lvalue bit ranges, i.e. values being assigned to. Examples:
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- Complex delay expressions, specifically min,typ,max expressions.
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regval [3:1] = 3'b0;
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regval [7:0] = 8'b0;
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- Tasks/functions
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- Task Enabling isn't implemented:
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Example: always @(value) // This isn't available yet.
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begin
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$display("value changed");
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end
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- The "?" operator. Example: count = val ? 1 : 0;
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- Ranges within parameter definitions:
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Example: parameter [15:0] seed = 16'ha3;
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- The "&&" operator:
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Example: if (a && 0) do = 1;
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- Concatenation: b = { a , 4'hd };
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- The "===" operator: Example: if( a === b) do = 1;
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- The ">=" operator: Example: if ( a >= 0) do = 1;
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- The ">" operator: Example: if ( a > 0) do = 1;
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- The "<=" operator: Example: if ( a <= 0) do = 1;
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- The "<<" shift operator: Example: a = 8'b0000_0010 << 1;
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- Min/Typ/Max assignments: Example: a = (1 : 6 : 14);
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- Inversion of a vector with a bit operator:
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Example: reg [7:0] a; a = !(8'h01);
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- The "!==" operator: Example: if( a !== b) do = 1;
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- Expansion of a string into a larger variable:
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Example: reg [0:15] b; b = "b";
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- Function declarations/calls.
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- Integer data type.
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- Non-scalar memories, i.e. other than registers.
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Example: reg [1:0] b [2:0];
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- Delay list. Example: sample #(9,99) sample1(a,b);
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- Bit ranges within IF. Example: if (a[2:3]) do = 1;
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- List of targets for case statement:
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Example:
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case (a) // Not Okay - 1, 2, and 3 must be separate lines.
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1, 2, 3: $write("selected 1, 2, 3 (Not Ok)\n");
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endcase
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- Forever key word.
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- Repeat key word.
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- Assignment timing delay: Example: a = #1 0; #1 a = #2 ~a;
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- Bit Ranges within $write, $display.
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- `timescale directive
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- Task declarations/calls.
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- Other things I forgot to mention.
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: design_dump.cc,v 1.27 1999/06/06 20:45:38 steve Exp $"
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#ident "$Id: design_dump.cc,v 1.28 1999/06/09 03:00:05 steve Exp $"
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#endif
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/*
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@ -522,6 +522,14 @@ void NetEBinary::dump(ostream&o) const
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o << ")";
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}
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void NetEConcat::dump(ostream&o) const
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{
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o << "{" << *parms_[0];
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for (unsigned idx = 1 ; idx < parms_.count() ; idx += 1)
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o << ", " << *parms_[idx];
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o << "}";
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}
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void NetEConst::dump(ostream&o) const
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{
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if (value_.is_string())
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@ -622,6 +630,9 @@ void Design::dump(ostream&o) const
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/*
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* $Log: design_dump.cc,v $
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* Revision 1.28 1999/06/09 03:00:05 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.27 1999/06/06 20:45:38 steve
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* Add parse and elaboration of non-blocking assignments,
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* Replace list<PCase::Item*> with an svector version,
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25
elaborate.cc
25
elaborate.cc
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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: elaborate.cc,v 1.37 1999/06/09 00:58:06 steve Exp $"
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#ident "$Id: elaborate.cc,v 1.38 1999/06/09 03:00:06 steve Exp $"
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#endif
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/*
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@ -564,13 +564,13 @@ NetNet* PEBinary::elaborate_net(Design*des, const string&path) const
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NetNet*lsig = left_->elaborate_net(des, path),
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*rsig = right_->elaborate_net(des, path);
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if (lsig == 0) {
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cerr << "Cannot elaborate ";
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cerr << get_line() << ": Cannot elaborate ";
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left_->dump(cerr);
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cerr << endl;
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return 0;
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}
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if (rsig == 0) {
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cerr << "Cannot elaborate ";
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cerr << get_line() << ": Cannot elaborate ";
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right_->dump(cerr);
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cerr << endl;
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return 0;
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@ -822,6 +822,19 @@ NetExpr* PEBinary::elaborate_expr(Design*des, const string&path) const
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return tmp;
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}
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NetExpr* PEConcat::elaborate_expr(Design*des, const string&path) const
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{
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NetEConcat*tmp = new NetEConcat(parms_.count());
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tmp->set_line(*this);
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for (unsigned idx = 0 ; idx < parms_.count() ; idx += 1) {
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assert(parms_[idx]);
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tmp->set(idx, parms_[idx]->elaborate_expr(des, path));
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}
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return tmp;
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}
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NetExpr* PENumber::elaborate_expr(Design*des, const string&path) const
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{
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assert(value_);
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@ -899,7 +912,8 @@ NetExpr*PEIdent::elaborate_expr(Design*des, const string&path) const
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NetExpr* PExpr::elaborate_expr(Design*des, const string&path) const
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{
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cerr << "Cannot elaborate expression: " << *this << endl;
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cerr << get_line() << ": I do not know how to elaborate expression: "
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<< *this << endl;
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return 0;
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}
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@ -1382,6 +1396,9 @@ Design* elaborate(const map<string,Module*>&modules,
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/*
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* $Log: elaborate.cc,v $
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* Revision 1.38 1999/06/09 03:00:06 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.37 1999/06/09 00:58:06 steve
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* Support for binary | (Stephen Tell)
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*
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10
emit.cc
10
emit.cc
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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: emit.cc,v 1.12 1999/06/06 20:45:38 steve Exp $"
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#ident "$Id: emit.cc,v 1.13 1999/06/09 03:00:06 steve Exp $"
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#endif
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/*
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@ -219,6 +219,11 @@ void NetEBinary::expr_scan(struct expr_scan_t*tgt) const
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tgt->expr_binary(this);
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}
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void NetEConcat::expr_scan(struct expr_scan_t*tgt) const
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{
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tgt->expr_concat(this);
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}
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void NetEConst::expr_scan(struct expr_scan_t*tgt) const
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{
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tgt->expr_const(this);
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@ -268,6 +273,9 @@ void emit(ostream&o, const Design*des, const char*type)
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/*
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* $Log: emit.cc,v $
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* Revision 1.13 1999/06/09 03:00:06 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.12 1999/06/06 20:45:38 steve
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* Add parse and elaboration of non-blocking assignments,
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* Replace list<PCase::Item*> with an svector version,
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39
netlist.cc
39
netlist.cc
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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 1.33 1999/06/07 02:23:31 steve Exp $"
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#ident "$Id: netlist.cc,v 1.34 1999/06/09 03:00:06 steve Exp $"
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#endif
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# include <cassert>
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@ -562,6 +562,40 @@ NetExpr* NetEBinary::eval_tree()
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}
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}
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NetEConcat::NetEConcat(unsigned cnt)
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: parms_(cnt)
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{
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}
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NetEConcat::~NetEConcat()
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{
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for (unsigned idx = 0 ; idx < parms_.count() ; idx += 1)
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delete parms_[idx];
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}
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void NetEConcat::set(unsigned idx, NetExpr*e)
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{
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assert(idx < parms_.count());
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assert(parms_[idx] == 0);
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parms_[idx] = e;
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}
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bool NetEConcat::set_width(unsigned w)
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{
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unsigned sum = 0;
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for (unsigned idx = 0 ; idx < parms_.count() ; idx += 1)
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sum += parms_[idx]->expr_width();
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if (sum != w) return false;
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expr_width(w);
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return true;
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}
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NetEConcat* NetEConcat::dup_expr() const
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{
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assert(0);
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}
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NetEConst::~NetEConst()
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{
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}
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@ -1164,6 +1198,9 @@ 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 1.34 1999/06/09 03:00:06 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.33 1999/06/07 02:23:31 steve
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* Support non-blocking assignment down to vvm.
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*
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35
netlist.h
35
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 1.36 1999/06/06 20:45:38 steve Exp $"
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#ident "$Id: netlist.h,v 1.37 1999/06/09 03:00:06 steve Exp $"
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#endif
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/*
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@ -929,6 +929,36 @@ class NetEBinary : public NetExpr {
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NetExpr* right_;
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};
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/*
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* This expression node supports the concat expression. This is an
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* operator that just glues the results of many expressions into a
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* single value.
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*
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* Note that the class stores the parameter expressions in source code
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* order. That is, the parm(0) is placed in the most significant
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* position of the result.
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*/
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class NetEConcat : public NetExpr {
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public:
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NetEConcat(unsigned cnt);
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~NetEConcat();
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// Manipulate the parameters.
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void set(unsigned idx, NetExpr*e);
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unsigned nparms() const { return parms_.count() ; }
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NetExpr* parm(unsigned idx) const { return parms_[idx]; }
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virtual bool set_width(unsigned w);
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virtual NetEConcat* dup_expr() const;
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virtual void expr_scan(struct expr_scan_t*) const;
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virtual void dump(ostream&) const;
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private:
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svector<NetExpr*>parms_;
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};
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class NetEConst : public NetExpr {
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public:
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@ -1207,6 +1237,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
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/*
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* $Log: netlist.h,v $
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* Revision 1.37 1999/06/09 03:00:06 steve
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* Add support for procedural concatenation expression.
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*
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* Revision 1.36 1999/06/06 20:45:38 steve
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* Add parse and elaboration of non-blocking assignments,
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* Replace list<PCase::Item*> with an svector version,
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20
parse.y
20
parse.y
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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: parse.y,v 1.33 1999/06/06 20:45:39 steve Exp $"
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#ident "$Id: parse.y,v 1.34 1999/06/09 03:00:06 steve Exp $"
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#endif
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# include "parse_misc.h"
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@ -289,10 +289,10 @@ event_expression
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expression
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: expr_primary
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{ $$ = $1; }
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| '(' expression ')'
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{ $$ = $2; }
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| '{' expression_list '}'
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{ PEConcat*tmp = new PEConcat(*$2);
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tmp->set_file(@2.text);
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tmp->set_lineno(@2.first_line);
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delete $2;
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$$ = tmp;
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}
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@ -462,12 +462,6 @@ expression
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{ yyerror(@2, "Sorry, ?: operator not supported.");
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$$ = 0;
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}
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| '(' expression ':' expression ':' expression ')'
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{ yyerror(@2, "Sorry, (min:typ:max) not supported.");
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$$ = $4;
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delete $2;
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delete $6;
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}
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| IDENTIFIER '(' expression_list ')'
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{ yyerror(@2, "Sorry, function calls not supported.");
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$$ = 0;
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@ -545,6 +539,14 @@ expr_primary
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delete $1;
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$$ = tmp;
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}
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| '(' expression ')'
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{ $$ = $2; }
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| '(' expression ':' expression ':' expression ')'
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{ yyerror(@2, "Sorry, (min:typ:max) not supported.");
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$$ = $4;
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delete $2;
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delete $6;
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}
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;
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31
t-vvm.cc
31
t-vvm.cc
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@ -17,7 +17,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: t-vvm.cc,v 1.22 1999/06/07 02:23:31 steve Exp $"
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#ident "$Id: t-vvm.cc,v 1.23 1999/06/09 03:00:06 steve Exp $"
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#endif
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# include <iostream>
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@ -93,6 +93,7 @@ class vvm_proc_rval : public expr_scan_t {
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private:
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virtual void expr_const(const NetEConst*);
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virtual void expr_concat(const NetEConcat*);
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virtual void expr_ident(const NetEIdent*);
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virtual void expr_memory(const NetEMemory*mem)
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{
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@ -109,6 +110,31 @@ class vvm_proc_rval : public expr_scan_t {
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virtual void expr_binary(const NetEBinary*);
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};
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void vvm_proc_rval::expr_concat(const NetEConcat*expr)
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{
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string tname = make_temp();
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os_ << setw(indent_) << "" << "vvm_bitset_t<" <<
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expr->expr_width() << "> " << tname << ";" << endl;
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unsigned pos = 0;
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for (unsigned idx = 0 ; idx < expr->nparms() ; idx += 1) {
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NetExpr*pp = expr->parm(expr->nparms() - idx - 1);
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pp->expr_scan(this);
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for (unsigned bit = 0 ; bit < pp->expr_width() ; bit += 1) {
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os_ << setw(indent_) << "" << tname << "[" << pos <<
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"] = " << result << "[" << bit << "];" <<
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endl;
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pos+= 1;
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}
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assert(pos <= expr->expr_width());
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}
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assert(pos == expr->expr_width());
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result = tname;
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}
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||||
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||||
void vvm_proc_rval::expr_const(const NetEConst*expr)
|
||||
{
|
||||
string tname = make_temp();
|
||||
|
|
@ -1121,6 +1147,9 @@ extern const struct target tgt_vvm = {
|
|||
};
|
||||
/*
|
||||
* $Log: t-vvm.cc,v $
|
||||
* Revision 1.23 1999/06/09 03:00:06 steve
|
||||
* Add support for procedural concatenation expression.
|
||||
*
|
||||
* Revision 1.22 1999/06/07 02:23:31 steve
|
||||
* Support non-blocking assignment down to vvm.
|
||||
*
|
||||
|
|
|
|||
17
target.cc
17
target.cc
|
|
@ -17,7 +17,7 @@
|
|||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*/
|
||||
#if !defined(WINNT)
|
||||
#ident "$Id: target.cc,v 1.10 1999/06/06 20:45:39 steve Exp $"
|
||||
#ident "$Id: target.cc,v 1.11 1999/06/09 03:00:06 steve Exp $"
|
||||
#endif
|
||||
|
||||
# include "target.h"
|
||||
|
|
@ -164,10 +164,16 @@ void expr_scan_t::expr_const(const NetEConst*)
|
|||
"unhandled expr_const." << endl;
|
||||
}
|
||||
|
||||
void expr_scan_t::expr_ident(const NetEIdent*)
|
||||
void expr_scan_t::expr_concat(const NetEConcat*that)
|
||||
{
|
||||
cerr << "expr_scan_t (" << typeid(*this).name() << "): "
|
||||
"unhandled expr_ident." << endl;
|
||||
cerr << that->get_line() << ": expr_scan_t (" <<
|
||||
typeid(*this).name() << "): unhandled expr_concat." << endl;
|
||||
}
|
||||
|
||||
void expr_scan_t::expr_ident(const NetEIdent*that)
|
||||
{
|
||||
cerr << that->get_line() << ": expr_scan_t (" <<
|
||||
typeid(*this).name() << "): unhandled expr_ident." << endl;
|
||||
}
|
||||
|
||||
void expr_scan_t::expr_memory(const NetEMemory*)
|
||||
|
|
@ -202,6 +208,9 @@ void expr_scan_t::expr_binary(const NetEBinary*ex)
|
|||
|
||||
/*
|
||||
* $Log: target.cc,v $
|
||||
* Revision 1.11 1999/06/09 03:00:06 steve
|
||||
* Add support for procedural concatenation expression.
|
||||
*
|
||||
* Revision 1.10 1999/06/06 20:45:39 steve
|
||||
* Add parse and elaboration of non-blocking assignments,
|
||||
* Replace list<PCase::Item*> with an svector version,
|
||||
|
|
|
|||
6
target.h
6
target.h
|
|
@ -19,7 +19,7 @@
|
|||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*/
|
||||
#if !defined(WINNT)
|
||||
#ident "$Id: target.h,v 1.10 1999/06/06 20:45:39 steve Exp $"
|
||||
#ident "$Id: target.h,v 1.11 1999/06/09 03:00:06 steve Exp $"
|
||||
#endif
|
||||
|
||||
# include "netlist.h"
|
||||
|
|
@ -99,6 +99,7 @@ struct target_t {
|
|||
struct expr_scan_t {
|
||||
virtual ~expr_scan_t();
|
||||
virtual void expr_const(const NetEConst*);
|
||||
virtual void expr_concat(const NetEConcat*);
|
||||
virtual void expr_ident(const NetEIdent*);
|
||||
virtual void expr_memory(const NetEMemory*);
|
||||
virtual void expr_signal(const NetESignal*);
|
||||
|
|
@ -124,6 +125,9 @@ extern const struct target *target_table[];
|
|||
|
||||
/*
|
||||
* $Log: target.h,v $
|
||||
* Revision 1.11 1999/06/09 03:00:06 steve
|
||||
* Add support for procedural concatenation expression.
|
||||
*
|
||||
* Revision 1.10 1999/06/06 20:45:39 steve
|
||||
* Add parse and elaboration of non-blocking assignments,
|
||||
* Replace list<PCase::Item*> with an svector version,
|
||||
|
|
|
|||
Loading…
Reference in New Issue