Commit Graph

582 Commits

Author SHA1 Message Date
Cary R 8e7e3c7493 Remove space issue 2014-07-22 18:59:58 -07:00
Cary R 588409389e SV: Add support for var decls in unnamed begin/end blocks.
SystemVerilog allows variables to be declared in unnamed begin/end
blocks. This patch adds support for this functionality.
2014-07-22 18:58:23 -07:00
Stephen Williams 14f597acdd Add support for synthesis translate meta-comments. 2014-07-15 18:03:40 -07:00
Cary R 0611135758 Some more cppcheck cleanup/updates 2014-06-29 20:39:40 -07:00
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
Stephen Williams 4dffd97d28 Handle tasks in packages. 2013-04-08 18:20:39 -07:00
Stephen Williams eba3d407ca packages can contain variables. 2013-04-08 18:20:39 -07:00
Stephen Williams bae0f1d3a7 Parse more package items
Rework lexical support for PACKAGE_IDENTIFIER so that the lexor
can help with package scoped identifiers.

Pform package types and package functions up to elaboration.
2013-04-08 18:20:39 -07:00
Cary R bdfd5b9b55 Add -g2012 flag and keywords for IEEE 1800-2012. 2013-04-02 14:41:44 -07:00
Stephen Williams 17330a3073 Elaborate class task and function methods.
The parse of class methods already works, this patch forms
the methods into their own scopes, and elaborates those scopes.
The "this"
2013-03-24 15:12:35 -07:00
Stephen Williams fac5cbca43 Handle this as special identifier strings. / Organize pform class member binding 2013-03-24 15:03:52 -07:00
Stephen Williams 670601bc2a Mark class method pforms with their pform class. 2013-03-24 15:03:52 -07:00
Stephen Williams 25b48fa790 Remove svector template from port handling. 2013-03-24 15:03:52 -07:00
Martin Whitaker faece5816c Fix implicit casts in assignments (part 3).
This patch adds support for bool/bit vector types on the LHS of
a parameter declaration and ensures implicit casts in parameter
declarations are performed where necessary.
2013-03-24 13:50:53 -07:00
Cary R b378dccbe9 Update parameter add code to correctly handle a non-Module scope
A package can have parameters, but it does not have specparams or
keep the order the parameters are defined. This patch skips these
items if the scope is not a Module.
2013-03-08 10:04:46 -08:00
Stephen Williams 8fa79ceb30 Properly implement import <pkg>::<name>
This was temporarily implemented to just copy definitions to the
local scope, but the better method is to create a PEIdent that has
the package attached to it.
2013-02-17 17:00:15 -08:00
Stephen Williams 60cb78e4ab Add packages and their own scope.
This makes <pkg>::<name> work properly, and also makes the
package descriptions available through VPI.
2013-02-17 17:00:15 -08:00
Stephen Williams 99b8086ad2 Import parameters from packages. 2013-02-17 16:59:21 -08:00
Stephen Williams 77d24cd095 Elaborate class_new and (null) expressions
This gets the types right for class_new and null expressions, and
elaborate them down to the ivl_target.h API.
2012-12-10 19:13:43 -08:00
Stephen Williams 55bebc8c39 Stub to pform class properties and null expressions. 2012-12-10 19:13:43 -08:00
Stephen Williams 0ccb1b4990 Delect class_new and print "sorry" message. 2012-11-03 08:40:03 -07:00
Stephen Williams 0339f5ed57 Parse package import declarations. 2012-10-21 15:06:23 -07:00
Stephen Williams 62be9c5b46 Parse (with sorry message) package declarations. 2012-10-21 11:42:19 -07:00
Stephen Williams b8093be42f Rework parse rules to handle more net types.
This makes the rules for types to be more in line with IEEE1800.
2012-09-03 16:00:10 -07:00
Stephen Williams f24d6b055d Use data_type_t instead of raw type bits. 2012-09-03 16:00:10 -07:00
Stephen Williams 3d9ed1f0f8 Clean up PWire handling of wire data type. / Reword packed type handling 2012-09-03 16:00:09 -07:00
Arun Persaud f5aafc32f9 updated FSF-address 2012-08-29 10:12:10 -07:00
Cary R 4313fbbf1f Fix space errors in various files 2012-08-16 11:13:32 -07:00
Martin Whitaker 4af8b03e9d Fix premature memory delete and missing DLL export definition.
A couple of errors that showed up in a MinGW build.
2012-08-06 13:31:03 -07:00
Martin Whitaker 5aa97b379d Add missing semi-colons in parser rules.
Plus a few minor spelling/formatting fixes.
2012-08-01 15:38:36 -07:00
Stephen Williams 813f548a4b Merge branch 'x-mil3'
Conflicts:
	vpi/Makefile.in
	vpi/sys_table.c
2012-07-30 17:02:57 -07:00
Martin Whitaker a5a512758e Allow a UDP instance to have a simple real delay.
The parser does not distinguish between module and UDP instances, so
a UDP delay is handled by the rules used for parsing module parameter
overrides. Although these rules had been relaxed to accept the case of
a simple decimal value (e.g. #10), they did not allow a simple real
value (e.g. #0.1).
2012-07-27 18:30:09 -07:00
Stephen Williams d0e6b24ca2 Support the new[] operator for arrays
Implement through the ivl core to the ivl_target.h API.
Also draft implementation of creating and storing arrays
in the vvp runtime and code generator.
2012-07-22 10:52:06 -07:00
Stephen Williams 14f229de30 Parse support for dynamic arrays.
This includes limited support for dynamic arrays down to the code
generator, and some stubs in the vvp code generator and vvp run time.
2012-07-22 10:52:06 -07:00
Stephen Williams d48362b861 First pass at getting strings to work.
In vvp, create the .var/str variable for representing strings, and
handle strings in the $display system task.

Add to vvp threads the concept of a stack of strings. This is going to
be how complex objects are to me handled in the future: forth-like
operation stacks. Also add the first two instructions to minimally get
strings to work.

In the parser, handle the variable declaration and make it available
to the ivl_target.h code generator. The vvp code generator can use this
information to generate the code for new vvp support.
2012-07-22 10:52:06 -07:00
Martin Whitaker bef59e0b6c Fix for pr3534333.
The parser had been changed to support null statements in sequential
and parallel blocks (a feature introduced in SystemVerilog), but was
not supported in elaboration, leading to a compiler crash. This patch
fixes this by discarding the null statements during parsing.
2012-07-01 12:23:47 -07:00
Stephen Williams 6a57764e0e Elaborate fork-join_none and fork-join_any statements. 2012-05-27 18:26:53 -07:00
Stephen Williams c0f35cbe62 Disallow modules/gates in program blocks. 2012-05-27 18:26:53 -07:00
Stephen Williams 8154ce2a4a Reword how we enforce program block constraints
Making the scope type NESTED_MODULE was just plain wrong, because
it didn't really encapsulate the meaning of program blocks OR
nested modules. So instead create nested_module() and program_block()
flags and use those to test scope constraints.
2012-05-27 18:26:53 -07:00
Stephen Williams dfe7beec31 Allow modules (and program blocks in particular) to nest.
An important advantage of program blocks is its ability to nest
within a module. This winds up also allowing modules to nest, which
is legal but presumably less used feature.
2012-05-27 18:26:53 -07:00
Stephen Williams 580c44c015 Prevent non-blocking assignment in program blocks. 2012-05-27 18:26:53 -07:00
Stephen Williams 0833d9e37a Basic support for program blocks. 2012-05-27 18:26:53 -07:00
Stephen Williams 342646264e Merge branch 'pei1' 2012-05-25 16:32:12 -07:00
Stephen Williams 6e8aef8262 Get unpacked arrays working. 2012-05-25 15:58:29 -07:00
Stephen Williams ceaa60d2f4 Parse (to "sorry") arrays of named types. 2012-05-22 17:31:27 -07:00
Stephen Williams 2443884779 Parse/sorry nets of named type. 2012-05-22 17:31:27 -07:00
Stephen Williams 67af96fee7 Module output ports use data_type_or_implicit
This cleans up the parsing of module output ports, allows for more
complex types on the ports, and fixes some bugs.
2012-05-22 17:31:26 -07:00
Stephen Williams b7b633b613 module output ports use data_type_t types.
This is in place of ad hoc type information passed to the
pform_module_define_port function.
2012-05-22 17:31:26 -07:00
Stephen Williams 7e202bb5ca Fix emit of struct ports/declarations. 2012-05-22 17:31:26 -07:00
Stephen Williams c7366e65cd Rework port input and inout to use data_type_or_implicit rule for types. 2012-05-22 17:31:26 -07:00
Martin Whitaker f7ba954ef7 Fix for pr3527022.
This patch adds support for an explicit range or type in a parameter
declaration that is part of a module parameter port list.
2012-05-18 13:30:28 -07:00