Commit Graph

191 Commits

Author SHA1 Message Date
Larry Doolittle 4dd65926ae Spelling fixes 2015-08-17 11:35:10 -07:00
Martin Whitaker 5facf243cd Fix for br990 - handle empty expression in parameter assignment by name. 2015-08-07 21:11:07 +01:00
Martin Whitaker b400532169 Added support for interface declaration and instantiation.
modport and extern tf declarations are not yet supported.
2014-12-19 23:10:14 +00:00
Martin Whitaker 60ab1daa1f Restore some master branch fixes lost in the vec4-stack merge. 2014-12-07 12:10:15 +00:00
Stephen Williams 2aeb3871ed Merge branch 'master' into vec4-stack
This was a challenging merge...
Conflicts:
	elab_scope.cc
	synth2.cc
	tgt-vvp/eval_expr.c
	vvp/vthread.cc
2014-11-13 16:26:15 -08:00
Cary R 6948c27c2d Enumerations are compatible if their type definitions match. 2014-11-04 15:05:49 -08:00
Cary R 2e9c4cde55 More refined check for enumeration width and constant width 2014-11-04 12:10:38 -08:00
Cary R cc9fcfd13d Only a literal constant size has to match the enumeration width. 2014-11-03 19:46:10 -08:00
Cary R 4660e0bf2f Another tweak to the enumeration elaboration code 2014-11-02 20:26:36 -08:00
Cary R 1e7509a021 Update enumeration elaboration checks 2014-11-02 11:45:19 -08:00
Stephen Williams d5123011b3 Merge branch 'master' into vec4-stack
Conflicts:
	elab_scope.cc
2014-11-01 14:57:05 -07:00
Cary R c25538d750 Pass the integer type for enumerations to the IVL target stage 2014-10-31 18:09:19 -07:00
Cary R 4f62a0d1f2 Check enum trimmed bits for values with undefined bits
If an enumeration constant has undefined bits then we need to verify that
the bits that are trimmed match the MSB of the remaining bits.
2014-10-30 19:54:38 -07:00
Cary R e7df9774aa When comparing that an enumeration is in range cast the value to 2-state
When checking that an enumeration value is in range we need to cast it to
a 2-state value so that when we compare it we get a true or false value
instead of an undefined value. Undefined bits in the comparison return
undefined which is not logically false.
2014-10-30 18:23:47 -07:00
Stephen Williams a98f21aa65 Merge branch 'master' into vec4-stack
Conflicts:
	elab_lval.cc
	netmisc.cc
	tgt-vvp/eval_object.c
	tgt-vvp/vvp_process.c
	vvp/codes.h
	vvp/compile.cc
	vvp/opcodes.txt
	vvp/vpi_tasks.cc
	vvp/vpi_vthr_vector.cc
	vvp/vthread.cc
2014-10-21 09:12:02 -07:00
Stephen Williams 712f394224 Elaborate classes in packages. 2014-10-10 18:53:53 -07:00
Stephen Williams c5fee8bdb9 Elaborate root tasks/functions. 2014-09-30 16:06:32 -07:00
Stephen Williams 480668fee6 Add support for classes defined in $root scope. 2014-09-15 17:37:30 -07:00
Stephen Williams fa21527e9f Classes in $root scope up to elaboration. 2014-09-15 17:37:30 -07:00
Stephen Williams 697701a26e Sorry messages for property arrays. 2014-09-07 17:48:19 -07:00
Stephen Williams 1465fd1570 Class definitions may reference class types in containing scopes.
We need the scope where the class is defined so that it can find
types in that containing scope. Note that most definitions cannot
escape into the the lexical scope of the class, but some can.
2014-09-02 09:22:41 -07:00
Cary R 8c3f7d78b9 Partial fix for br956 (various enumeration bugs)
This patch fixes the following enumeration bugs:

When looking for an enumeration look in the current scope and then
recursively in any parent scope.

Add enumeration definitions to a package scope.
2014-08-28 13:02:42 -07:00
Stephen Williams f602ae84ab Elaborate foreach loops as synthetic for loops.
Create an implicit scope to hold the index variable, and
generate a for loop to perform the functionality of the
foreach.
2014-08-21 16:44:46 -07:00
Stephen Williams 2e2317b7c7 Generalize the hname_t to handle n-dimensional scope arrays.
... Not that they actually exist yet. But this fixes some symbol
search issues and makes room for this support in the future.
2014-04-06 08:40:09 -07:00
Stephen Williams b5e0099f28 Fix support for enum literals with undefined values. 2014-03-01 17:45:13 -08:00
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 fc42f40770 Fix problem with enum types in re-used modules
When a module is instantiated multiple times, the enum
types contained within would cause trouble. This fixes
that by elaborating in proper scope context.
2014-01-11 19:19:15 -08:00
Stephen Williams a3b29dd70b Handle enumeration literals that are in $root. 2014-01-11 19:19:14 -08:00
Stephen Williams 819770a6c4 Handle enumerations as packed struct/union members.
There were also some subtleties related to using enumerations
from typedefs and using them in multiple places. Fix various
bugs related to those issues.
2013-12-07 12:20:28 -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 f16fd03dab Elaborate PChainConstructor calls.
It is better to leave the handling of PChainConstructor calls to
the elaboration, instead of stripping them out early. This allows
for handling the arguments of the chain constructor in the correct
scope.
2013-11-10 18:03:19 -08:00
Stephen Williams a7d8c983ba Blend initializer statements into any explicit constructor.
If there is an explicit constructor, then blend all the statements
of the implicit constructor into it so that there is only one
constructor function.
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 d8f945be23 Add support for SV do/while 2013-09-16 20:02:09 -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 046535cfbb Blend implicit constructor with explicit constructor
Class types that have both implicit construction and
an explicit constructor can blend the implicit and
explicit construction into the "new" function defined
by the user. This doesn't change the behavior any, but
removes a function call and related scope.
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
Stephen Williams d346fb098f Collect initializer statements in the pform. 2013-07-02 20:16:46 -07:00
Cary R 431d62185b vlog95: Emit a new doing a shallow copy as an error. 2013-04-30 11:52:52 -07:00
Stephen Williams de6c57d661 Elaborate classes in lexical order so that mutual references work. 2013-04-28 16:28:24 -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 4ad556d464 Update some copyright notices. 2013-04-08 18:35:37 -07:00
Stephen Williams 44cd9158e8 Elaborate parameters, tasks and functions in packages.
Get the elaboration to happen all the way to the ivl_target
interface.
2013-04-08 18:20:39 -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 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 318a4033b8 Flesh out class type elaboration
Add properties to the classes, and elaborate expressions that
have class properties. Describe class object property references
all the way down to the stub target.
2012-12-10 19:20:02 -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
Cary R e0f82981e7 Remove some compiler warnings 2012-09-24 10:28:17 -07:00