8d3febff2b
Keep processes in proper lexical scope
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Normally processes are found in the lexical scope of a module, but
there are special cases where processes (other then task/function
definitions) are in other lexical scopes. The most likely case is
initilizations that are in the lexical scope where the assigned
variable is declared.
In the process, the behaviors list is kept in the base PScope class
instead of the Module or any other derived lexical scope class.
2008-03-03 20:49:52 -08:00
b0e4a6884a
Objects of lexical scope use PScope base class.
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All the pform objects that represent lexical scope now are derived
from the PScope class, and are kept in a lexical_scope table so that
the scope can be managed.
2008-02-15 21:20:24 -08:00
bc1d3eb7cd
Add support for generate case
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Generate case is a complex generate scheme where the items are
sub-schemes of the case generate itself. The parser handles them
something like nested generate statements, but storing the case
guards as the test expression. Then the elaborator notes the
case scheme and reaches into the case item schemes inside to make
up tests, select the generate item, and elaborate.
2008-02-09 22:19:42 -08:00
1b410f0c7d
Factor code for processing parameters and localparams
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Replace some redundant code with a single function that handles the
elaboration and type management of parameters identically.
2008-02-05 13:37:33 -08:00
51b1804660
Fix for pr1885847.
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Currently, if a localparam declaration does not include a type or
range, the RHS expression is cast to an unsigned value. This patch
changes this to make the localparam inherit the type of the RHS
expression, as is done for parameter declarations and is specified
by the Verilog-2001 standard.
2008-02-05 13:06:42 -08:00
d9ac146b8f
Spelling fixes
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only comments and documentation
some punctuation and capitalization for good measure
Changelogs are purposefully untouched
2008-01-29 20:24:24 -08:00
f8d410e2d4
remove lint flagged by gcc-4.3
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watch for possible behavior changes in
elaborate.cc:3409
vvp/vvp_net.cc:600
2008-01-07 18:39:10 -08:00
8ea3b6b0b8
header includes for gcc-4.3 compatibility
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minimal changes required to build without error
tested with gcc-4.3 (Debian 4.3-20071130-1) 4.3.0 20071130 (experimental)
2008-01-04 16:14:44 -08:00
7975e14b5c
LineInfo uses perm_string for path.
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Rework the handling of file names to use a perm_string heap to hold
the file names, instead of the custom file name heap in the lexor.
Also rename the get_line to get_fileline to reflect its real duties.
This latter chage touched a lot of files.
2007-12-20 12:31:01 -05:00
fbebcccaed
Fix for pr1833776.
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This patch fixes a bug which caused a generate loop with a non-zero
initial value to generate the wrong number of block instances.
2007-11-18 22:06:46 -08:00
d240d33558
Fix for pr1833754.
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This patch adds checks for duplicated scope names during scope elaboration.
2007-11-18 22:00:40 -08:00
05a6e69d2d
Support nested generate schemes.
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This patch adds support for nested loops and if-else decisions in generate
statements.
2007-11-07 21:27:00 -08:00
7aa323bcbf
Handle nil parameter overrides
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Nil parameter overrides can turn up in positional paramter override
lists, where items are intentionally skipped.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-07-14 17:11:14 -07:00
396ffd1cdd
Add support for conditional generate. In the process, fix bugs
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related to generate used multiple times by multiple scopes causing
spurious generation results.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-06-21 19:04:48 -07:00
c7d97f4146
Properly evaluate scope path expressions.
2007-06-02 03:42:12 +00:00
ddd36ecb6c
Rework the heirarchical identifier parse syntax and pform
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to handle more general combinations of heirarch and bit selects.
2007-05-24 04:07:11 +00:00
611d2c81b3
Spelling fixes from Larry
2007-03-22 16:08:14 +00:00
a50ec29ad9
Elaborate scopes of modules instantated in generate loops.
2007-03-08 06:11:35 +00:00
e6fa72c318
Handle processes within generate loops.
2007-03-05 05:59:10 +00:00
71faebd6df
Make elaborate_expr methods aware of the width that the context
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requires of it. In the process, fix sizing of the width of unary
minus is context determined sizes.
2006-06-02 04:48:49 +00:00
fc5cf55400
Use elab_and_eval to evaluate genvar expressions.
2006-04-12 05:05:03 +00:00
f001d0001a
Add support for generate loops w/ wires and gates.
2006-04-10 00:37:42 +00:00
e8efa6df53
Fix instance arrays indexed by overridden parameters.
2006-03-30 01:49:07 +00:00
f4a44df2cc
Support more parameter syntax.
2006-03-18 22:53:38 +00:00
b9799cf6ec
Remove NetVariable and ivl_variable_t structures.
2005-07-11 16:56:50 +00:00
a70dd79cd8
Missing stdio.h header for warnings.
2004-09-10 00:15:17 +00:00
9de786fc44
Add support for module instance arrays.
2004-09-05 17:44:41 +00:00
95c8115fc7
Add support for localparam ranges.
2004-08-26 04:02:03 +00:00
9949040285
Add support for the default_nettype directive.
2004-06-13 04:56:53 +00:00
e7fa56981a
More identifier lists use perm_strings.
2004-05-25 19:21:06 +00:00
1295058e5d
parameter keys are per_strings.
2004-02-20 06:22:56 +00:00
89acc41437
LPM, logic and Variables have perm_string names.
2004-02-19 07:06:57 +00:00
27af95d402
Use perm_strings for named langiage items.
2004-02-18 17:11:54 +00:00
178847fc53
Spelling fixes.
2003-09-13 01:01:51 +00:00
7c1401a2ba
Spelling patch.
2003-08-28 04:11:17 +00:00
21ff80075a
Various warnings fixed.
2003-06-24 01:38:02 +00:00
ccf4d4d7da
Module attributes from the parser
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through to elaborated form.
2003-06-20 00:53:19 +00:00
ad102e80de
Functions can have sub-scope.
2003-06-16 00:34:08 +00:00
3ef65d1298
Properly manage real variables in subscopes.
2003-06-13 19:10:45 +00:00
5903f0744c
Support parameters in real expressions and
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as real expressions, and fix multiply and
divide with real results.
2003-05-30 02:55:32 +00:00
badad63ab4
All NetObj objects have lex_string base names.
2003-03-06 00:28:41 +00:00
8f0c02c0fa
Spelling fixes.
2003-01-27 05:09:17 +00:00
46253ed873
Rework expression parsing and elaboration to
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accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
43501809b1
Redo the parameter vector support to allow
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parameter names in range expressions.
2002-10-19 22:59:49 +00:00
7e1e44e87a
Properly cast signedness of parameters with ranges.
2002-09-01 03:01:48 +00:00
4de141ab1d
Support parameters with defined ranges.
2002-08-19 02:39:16 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
a5890b914f
Properly handle empty target in positionla parameter override.
2001-12-30 04:47:57 +00:00
ab6c8cb4b8
Parser and pform use hierarchical names as hname_t
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objects instead of encoded strings.
2001-12-03 04:47:14 +00:00
7a149a6943
Scope/module names are char* instead of string.
2001-10-20 05:21:51 +00:00
Stephen Williams
Martin Whitaker
Larry Doolittle
Martin Whitaker
steve