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Rework expression parsing and elaboration to

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accommodate real/realtime values and expressions.
This commit is contained in:
steve
2003-01-26 21:15:58 +00:00
parent 1a9ab8ec84
commit 46253ed873
44 changed files with 1546 additions and 749 deletions
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t-dll-api.cc
+62 -274
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@@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: t-dll-api.cc,v 1.89 2002/12/21 00:55:58 steve Exp $"
#ident "$Id: t-dll-api.cc,v 1.90 2003/01/26 21:15:59 steve Exp $"
#endif
# include "config.h"
@@ -218,6 +218,12 @@ extern "C" ivl_scope_t ivl_expr_def(ivl_expr_t net)
return 0;
}
extern "C" double ivl_expr_dvalue(ivl_expr_t net)
{
assert(net->type_ == IVL_EX_REALNUM);
return net->u_.real_.value;
}
extern "C" unsigned ivl_expr_lsi(ivl_expr_t net)
{
switch (net->type_) {
@@ -242,6 +248,9 @@ extern "C" const char* ivl_expr_name(ivl_expr_t net)
case IVL_EX_SIGNAL:
return net->u_.signal_.sig->name_;
case IVL_EX_VARIABLE:
return net->u_.variable_.var->name;
default:
assert(0);
}
@@ -414,6 +423,12 @@ extern "C" unsigned long ivl_expr_uvalue(ivl_expr_t net)
return net->u_.ulong_.value;
}
extern "C" ivl_variable_type_t ivl_expr_value(ivl_expr_t net)
{
assert(net);
return net->value_;
}
extern "C" unsigned ivl_expr_width(ivl_expr_t net)
{
assert(net);
@@ -426,6 +441,12 @@ extern "C" ivl_memory_t ivl_expr_memory(ivl_expr_t net)
return net->u_.memory_.mem_;
}
extern "C" ivl_variable_t ivl_expr_variable(ivl_expr_t net)
{
assert(net->type_ == IVL_EX_VARIABLE);
return net->u_.variable_.var;
}
extern "C" const char* ivl_logic_attr(ivl_net_logic_t net, const char*key)
{
assert(net);
@@ -899,6 +920,14 @@ extern "C" ivl_memory_t ivl_lval_mem(ivl_lval_t net)
return 0x0;
}
extern "C" ivl_variable_t ivl_lval_var(ivl_lval_t net)
{
assert(net);
if (net->type_ == IVL_LVAL_VAR)
return net->n.var;
return 0x0;
}
extern "C" unsigned ivl_lval_part_off(ivl_lval_t net)
{
assert(net);
@@ -1079,6 +1108,19 @@ extern "C" ivl_event_t ivl_scope_event(ivl_scope_t net, unsigned idx)
return net->event_[idx];
}
extern "C" unsigned ivl_scope_vars(ivl_scope_t net)
{
assert(net);
return net->nvar_;
}
extern "C" ivl_variable_t ivl_scope_var(ivl_scope_t net, unsigned idx)
{
assert(net);
assert(idx < net->nvar_);
return net->var_[idx];
}
extern "C" unsigned ivl_scope_logs(ivl_scope_t net)
{
assert(net);
@@ -1484,6 +1526,9 @@ extern "C" unsigned ivl_stmt_lwidth(ivl_statement_t net)
case IVL_LVAL_MEM:
sum += ivl_memory_width(ivl_lval_mem(cur));
break;
case IVL_LVAL_VAR:
sum += 0;
break;
default:
assert(0);
}
@@ -1589,8 +1634,24 @@ extern "C" ivl_statement_t ivl_stmt_sub_stmt(ivl_statement_t net)
return 0;
}
extern "C" const char* ivl_variable_name(ivl_variable_t net)
{
assert(net);
return net->name;
}
extern "C" ivl_variable_type_t ivl_variable_type(ivl_variable_t net)
{
assert(net);
return net->type;
}
/*
* $Log: t-dll-api.cc,v $
* Revision 1.90 2003/01/26 21:15:59 steve
* Rework expression parsing and elaboration to
* accommodate real/realtime values and expressions.
*
* Revision 1.89 2002/12/21 00:55:58 steve
* The $time system task returns the integer time
* scaled to the local units. Change the internal
@@ -1634,278 +1695,5 @@ extern "C" ivl_statement_t ivl_stmt_sub_stmt(ivl_statement_t net)
*
* Revision 1.79 2002/05/24 04:36:23 steve
* Verilog 2001 attriubtes on nets/wires.
*
* Revision 1.78 2002/05/23 03:08:51 steve
* Add language support for Verilog-2001 attribute
* syntax. Hook this support into existing $attribute
* handling, and add number and void value types.
*
* Add to the ivl_target API new functions for access
* of complex attributes attached to gates.
*
* Revision 1.77 2002/03/17 19:30:47 steve
* Add API to support user defined function.
*
* Revision 1.76 2002/03/09 02:10:22 steve
* Add the NetUserFunc netlist node.
*
* Revision 1.75 2002/01/28 00:52:41 steve
* Add support for bit select of parameters.
* This leads to a NetESelect node and the
* vvp code generator to support that.
*
* Revision 1.74 2002/01/03 04:19:01 steve
* Add structural modulus support down to vvp.
*
* Revision 1.73 2001/12/06 03:11:00 steve
* Add ivl_logic_delay function to ivl_target.
*
* Revision 1.72 2001/11/14 03:28:49 steve
* DLL target support for force and release.
*
* Revision 1.71 2001/11/01 04:25:31 steve
* ivl_target support for cassign.
*
* Revision 1.70 2001/10/31 05:24:52 steve
* ivl_target support for assign/deassign.
*
* Revision 1.69 2001/10/19 21:53:24 steve
* Support multiple root modules (Philip Blundell)
*
* Revision 1.68 2001/10/16 02:19:27 steve
* Support IVL_LPM_DIVIDE for structural divide.
*
* Revision 1.67 2001/09/16 22:19:42 steve
* Support attributes to logic gates.
*
* Revision 1.66 2001/09/01 01:57:31 steve
* Make constants available through the design root
*
* Revision 1.65 2001/08/31 22:58:40 steve
* Support DFF CE inputs.
*
* Revision 1.64 2001/08/28 04:07:18 steve
* Add some ivl_target convenience functions.
*
* Revision 1.63 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
* and uses less space. Make the NetAssignNB carry
* the delays instead of the NetAssign_ lval objects.
*
* Change the vvp code generator to support multiple
* l-values, i.e. concatenations of part selects.
*
* Revision 1.62 2001/08/10 00:40:45 steve
* tgt-vvp generates code that skips nets as inputs.
*
* Revision 1.61 2001/07/28 01:17:40 steve
* Support getting the signal from IVL_EX_SIGNAL expressions.
*
* Revision 1.60 2001/07/27 04:51:44 steve
* Handle part select expressions as variants of
* NetESignal/IVL_EX_SIGNAL objects, instead of
* creating new and useless temporary signals.
*
* Revision 1.59 2001/07/27 02:41:55 steve
* Fix binding of dangling function ports. do not elide them.
*
* Revision 1.58 2001/07/25 03:10:49 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)
*
* Revision 1.57 2001/07/22 00:17:49 steve
* Support the NetESubSignal expressions in vvp.tgt.
*
* Revision 1.56 2001/07/19 04:55:06 steve
* Support calculated delays in vvp.tgt.
*
* Revision 1.55 2001/07/07 20:20:10 steve
* Pass parameters to system functions.
*
* Revision 1.54 2001/07/07 03:01:37 steve
* Detect and make available to t-dll the right shift.
*
* Revision 1.53 2001/07/04 22:59:25 steve
* handle left shifter in dll output.
*
* Revision 1.52 2001/06/30 23:03:16 steve
* support fast programming by only writing the bits
* that are listed in the input file.
*
* Revision 1.51 2001/06/16 23:45:05 steve
* Add support for structural multiply in t-dll.
* Add code generators and vvp support for both
* structural and behavioral multiply.
*
* Revision 1.50 2001/06/16 02:41:41 steve
* Generate code to support memory access in continuous
* assignment statements. (Stephan Boettcher)
*
* Revision 1.49 2001/06/15 04:14:19 steve
* Generate vvp code for GT and GE comparisons.
*
* Revision 1.48 2001/06/07 03:09:37 steve
* support subtraction in tgt-vvp.
*
* Revision 1.47 2001/06/07 02:12:43 steve
* Support structural addition.
*
* Revision 1.46 2001/05/20 01:06:16 steve
* stub ivl_expr_parms for sfunctions.
*
* Revision 1.45 2001/05/17 04:37:02 steve
* Behavioral ternary operators for vvp.
*
* Revision 1.44 2001/05/08 23:59:33 steve
* Add ivl and vvp.tgt support for memories in
* expressions and l-values. (Stephan Boettcher)
*
* Revision 1.43 2001/05/06 17:48:20 steve
* Support memory objects. (Stephan Boettcher)
*
* Revision 1.42 2001/04/29 23:17:38 steve
* Carry drive strengths in the ivl_nexus_ptr_t, and
* handle constant devices in targets.'
*
* Revision 1.41 2001/04/26 05:12:02 steve
* Implement simple MUXZ for ?: operators.
*
* Revision 1.40 2001/04/22 23:09:46 steve
* More UDP consolidation from Stephan Boettcher.
*
* Revision 1.39 2001/04/21 00:55:46 steve
* Generate code for disable.
*
* Revision 1.38 2001/04/15 02:58:11 steve
* vvp support for <= with internal delay.
*
* Revision 1.37 2001/04/06 02:28:02 steve
* Generate vvp code for functions with ports.
*
* Revision 1.36 2001/04/05 03:20:57 steve
* Generate vvp code for the repeat statement.
*
* Revision 1.35 2001/04/05 01:12:28 steve
* Get signed compares working correctly in vvp.
*
* Revision 1.34 2001/04/04 04:50:35 steve
* Support forever loops in the tgt-vvp target.
*
* Revision 1.33 2001/04/03 04:50:37 steve
* Support non-blocking assignments.
*
* Revision 1.32 2001/04/02 02:28:12 steve
* Generate code for task calls.
*
* Revision 1.31 2001/04/02 00:28:35 steve
* Support the scope expression node.
*
* Revision 1.30 2001/04/01 06:52:27 steve
* support the NetWhile statement.
*
* Revision 1.29 2001/04/01 01:48:21 steve
* Redesign event information to support arbitrary edge combining.
*
* Revision 1.28 2001/03/31 17:36:38 steve
* Generate vvp code for case statements.
*
* Revision 1.27 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.26 2001/03/29 03:47:38 steve
* Behavioral trigger statements.
*
* Revision 1.25 2001/03/29 02:52:39 steve
* Add unary ~ operator to tgt-vvp.
*
* Revision 1.24 2001/03/28 06:07:39 steve
* Add the ivl_event_t to ivl_target, and use that to generate
* .event statements in vvp way ahead of the thread that uses it.
*
* Revision 1.23 2001/03/27 06:27:40 steve
* Generate code for simple @ statements.
*
* Revision 1.22 2001/03/20 01:44:13 steve
* Put processes in the proper scope.
*
* Revision 1.21 2001/01/15 00:47:02 steve
* Pass scope type information to the target module.
*
* Revision 1.20 2001/01/15 00:05:39 steve
* Add client data pointer for scope and process scanners.
*
* Revision 1.19 2000/12/05 06:29:33 steve
* Make signal attributes available to ivl_target API.
*
* Revision 1.18 2000/11/12 17:47:29 steve
* flip-flop pins for ivl_target API.
*
* Revision 1.17 2000/11/11 00:03:36 steve
* Add support for the t-dll backend grabing flip-flops.
*
* Revision 1.16 2000/10/28 22:32:34 steve
* API for concatenation expressions.
*
* Revision 1.15 2000/10/25 05:41:24 steve
* Get target signal from nexus_ptr.
*
* Revision 1.14 2000/10/18 20:04:39 steve
* Add ivl_lval_t and support for assignment l-values.
*
* Revision 1.13 2000/10/16 22:44:54 steve
* Stubs so that cygwin port will link ivl.
*
* Revision 1.12 2000/10/15 04:46:23 steve
* Scopes and processes are accessible randomly from
* the design, and signals and logic are accessible
* from scopes. Remove the target calls that are no
* longer needed.
*
* Add the ivl_nexus_ptr_t and the means to get at
* them from nexus objects.
*
* Give names to methods that manipulate the ivl_design_t
* type more consistent names.
*
* Revision 1.11 2000/10/08 04:01:54 steve
* Back pointers in the nexus objects into the devices
* that point to it.
*
* Collect threads into a list in the design.
*
* Revision 1.10 2000/10/06 23:46:50 steve
* ivl_target updates, including more complete
* handling of ivl_nexus_t objects. Much reduced
* dependencies on pointers to netlist objects.
*
* Revision 1.9 2000/10/05 05:03:01 steve
* xor and constant devices.
*
* Revision 1.8 2000/09/30 02:18:15 steve
* ivl_expr_t support for binary operators,
* Create a proper ivl_scope_t object.
*
* Revision 1.7 2000/09/26 00:30:07 steve
* Add EX_NUMBER and ST_TRIGGER to dll-api.
*
* Revision 1.6 2000/09/24 15:46:00 steve
* API access to signal type and port type.
*
* Revision 1.5 2000/09/24 02:21:53 steve
* Add support for signal expressions.
*
* Revision 1.4 2000/09/23 05:15:07 steve
* Add enough tgt-verilog code to support hello world.
*
* Revision 1.3 2000/09/22 03:58:30 steve
* Access to the name of a system task call.
*
* Revision 1.2 2000/09/19 04:15:27 steve
* Introduce the means to get statement types.
*
* Revision 1.1 2000/09/18 01:24:32 steve
* Get the structure for ivl_statement_t worked out.
*
*/