Commit Graph

528 Commits

Author SHA1 Message Date
Cary R 734d56ce25 Remove space issue. 2014-04-10 14:37:07 -07:00
Stephen Williams c8b20da4be Merge pull request #21 from toddstrader/master
package imports in module headers
2014-04-07 14:09:50 -07:00
Stephen Williams e55e832ea0 Handle unpacked arrays as output ports. 2014-04-06 08:40:09 -07:00
Stephen Williams 6caa41cc93 First pass at support for continuous assign of unpacked net arrays. 2014-04-06 08:40:09 -07:00
Stephen Williams f8e33b12cd Clean up pform_module_define_port in preparation for new tricks.
Get rid of the data_type, signed_flag, and range arguments to the
pform_module_define_port because they add no value within the
parse.y parser. Cleaning these out will hopefully ease the addition
of new functionality.
2014-04-06 08:40:09 -07:00
Stephen Williams aaee9989c2 Handle for_variable_declaration
This can be handled entirely in the parser, where we rewrite the
syntax to me a begin/end block that contains the index variable
declaration and the for loop.
2014-04-06 08:40:08 -07:00
Stephen Williams a849249a86 Allow typedefs to override inherited type names. 2014-04-06 08:40:08 -07:00
Todd Strader (todd.strader@gmail.com) 849ba64cf7 package imports in module headers
See IEEE 1800-2012 A.1.2 module_nonansi_header and module_ansi_header
2014-04-03 20:11:57 -04:00
Martin Whitaker a3450bf856 Fixes for GitHub issues 13 and 15.
The verinum arithmetic operators now observe the standard Verilog
rules for calculating the result width if all operands are sized.
If any operand is unsized, the result is lossless, as before.
They also now all observe the standard rules for handling partially
undefined operands (if any operand bit is 'x', the entire result is
'x').

I've also added the unary '-' operator, and renamed v_not() to be
the unary '~' operator. This has allowed some simplification in
other parts of the compiler.
2014-02-25 20:39:21 +00:00
Stephen Williams 830083d99b Merge branch 'x-sizer3' 2014-02-16 17:05:53 -08:00
Stephen Williams 6902bf44e3 Improved error handling in parser around typedefs. 2014-02-16 17:04:52 -08:00
Stephen Williams 8f849a9944 Sorry message for unpacked array module ports. 2014-02-16 15:56:32 -08:00
Martin Whitaker 8135f369a5 Fix for GitHub issue 11 : Syntax error on operator attributes.
Attributes are allowed to be attached to unary, binary, and ternary
operators in expressions. For now just accept and discard them.
2014-02-14 23:29:22 +00:00
Stephen Williams 52a9fdde8a Handle packed structs as module outputs. 2014-02-03 19:22:59 -08:00
Stephen Williams 49cf5556a2 Fix primitive table lexical analysis.
Sequences of digits in the table of a primitive may be matched
as decimal numbers instead of digits, and this breaks some
primitives.
2014-02-02 10:57:53 -08:00
Stephen Williams 8a4d769b3d Type name expressions down to elaboration. 2014-01-11 19:19:15 -08:00
Stephen Williams b0491b9c54 Handle typedefs in $root scope. 2014-01-11 19:19:14 -08:00
Stephen Williams 7669a42cfb Handle some assertion syntax in the parser.
Implement some yacc rules for assertion syntax.

Add the -gassertions/-gno-assertions command-line flags to
enable or disable assertions.
2013-12-07 12:20:28 -08:00
Stephen Williams 49756a8e7a Unions through pform. 2013-12-07 12:20:28 -08:00
Stephen Williams be7d763352 Sorry message for union declarations. 2013-11-22 10:39:48 -08:00
Stephen Williams 0692cd54e7 Support some simple class initialization assignments. 2013-11-16 17:04:14 -08:00
Stephen Williams 9bd9c8f301 Implement class extends arguments.
This implements constructor arguments right after the base class
name in the class extends syntax.
2013-11-10 18:03:19 -08:00
Stephen Williams d192f545ac Chain class instance constructors with arguments. 2013-11-10 18:03:19 -08:00
Stephen Williams 9f83882bcc Parse/elaborate class derivation
This gets us down to working classes, but does not yet implement
calls to the parent constructor, implicitly or explicitly.
2013-11-10 18:03:19 -08:00
Cary R 97d06b107f Add support for wait fork to the compiler and code generators 2013-10-22 09:41:03 -07:00
Stephen Williams 2030e06988 Parse/elaborate some array-patterns down to the ivl_target API. 2013-10-19 15:34:14 -07:00
Stephen Williams 18c338ad09 Handle array assignment patters through pform.
This gets us to elaboration. In the process also fix up ivl_type_t
type comparisons to do deep type comparison.
2013-10-19 15:34:14 -07:00
Stephen Williams 5494c9ae09 Support DARRAY objects as port arguments. 2013-10-19 15:34:14 -07:00
Cary R c64b8900ca Add support for disable fork to the compiler. 2013-10-17 19:34:57 -07:00
Stephen Williams a9a1c50268 Support "this" for calling task methods. 2013-09-20 20:44:57 -07:00
Stephen Williams 5084a23417 Sorry messages for calls to superclass constructor. 2013-09-20 20:44:57 -07:00
Stephen Williams 46f551073e Handle default expressions anywhere in port expression list. 2013-09-20 20:44:57 -07:00
Stephen Williams 9a116498a2 Handle task/function default expressions in parsing/pform.
This gets it to (but not through) the elaborator.
2013-09-20 20:44:56 -07:00
Cary R d8f945be23 Add support for SV do/while 2013-09-16 20:02:09 -07:00
Stephen Williams 173577d5f7 Merge branch 'work14' 2013-07-03 20:00:22 -07:00
Stephen Williams 4ef3ac5ca6 Implement const properties of classes.
This implementation works by detecting assignments
to constant properties in elaboration. Allow initializer
assignments to assign to the constant, error all other
assignments, and otherwise treat the constant like any
other property.
2013-07-02 20:16:47 -07:00
Stephen Williams cf47a759d1 Implement the "local" class member protection.
Test during elaboration that the member really is
accessible in the context where the elaboration
happens.
2013-07-02 20:16:47 -07:00
Stephen Williams fbc5557a10 Handle properties that have arbitrary bit widths.
This fixes the run time handling of arbitrary width
bit vectors as class properties. The vvp code generator
already did the right things.
2013-07-02 20:16:47 -07:00
Stephen Williams 75b4b94061 Elaborate implicit initializers
Remaining pform fixup of property initializers, and
elaboration and code generation for implicit constructor.
2013-07-02 20:16:46 -07:00
Cary R 11e5641089 A real task/function port is also signed. 2013-06-27 13:03:11 -07:00
Stephen Williams 1b178d56b7 Add support for SystemVerilog return statements. 2013-06-12 14:09:07 -07:00
Martin Whitaker 6364aba975 Fix for br930 - support attributes on old-style port declarations. 2013-05-19 09:16:24 +01:00
Cary R 71c6193ff1 Finish adding support for end labels in SystemVerilog 2013-05-14 15:01:54 -07:00
Cary R 7c1638652a Add support for closing a procedural begin/fork block with a name 2013-05-08 18:34:16 -07:00
Cary R 51d3c03922 A time variable is always unsigned and pass the integer property 2013-04-30 14:05:19 -07:00
Stephen Williams eff6e7a441 Parse to pform shallow copy "new" expressions. 2013-04-21 19:27:57 -07:00
Stephen Williams 8994ef1483 Implement class constructors.
Class constructors are the "new" method in a class description.
Elaborate the constructor as an ordinary method, but the only
way to access this method is to implicitly call it. The elaborator
will take the constructor call and generate a naked "new" expression
and implicit constructor method call with the object itself as the
return value.
2013-04-20 16:38:35 -07:00
Stephen Williams 20ee350601 Generalize user defined function return type handling.
I'm gonna need functions to return class objects, so generalize
the output types of user defined functions.
2013-04-20 16:38:35 -07:00
Stephen Williams 632fd006c5 Merge branch 'master' of github.com:steveicarus/iverilog 2013-04-16 16:56:14 -07:00
Cary R f536a43e92 Add support for timeunit <time_val> / <time_val> 2013-04-16 14:40:35 -07:00