bab9c7adba
Proper compile time processing of arithmetic right shift
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Handle arithmetic right shift during compile time. This comes
up with both the operands are constant expressions. the compiler
is able to evaluate this down to a constant to replace the
expression.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-11-08 21:52:38 -08:00
7c852aa075
Add cmos/rcmos primitives.
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This patch adds the cmos and rcmos primitives.
2007-09-06 18:46:22 -07:00
b69c4c9a2c
Fix range handling/checking and add a flag to allow deprecated port syntax.
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This patch is rather large and fixes a couple of problems. The major
change is that instead of keeping all the range specifications in
a list that is later processed the information is now kept as
individual entries for the port and net definitions. This allows
easier checking for multiple definitions (pr1660028), more
detailed error messages and the ability to pass the now deprecated
style of a scalar I/O definition used with a vectored net definition.
These changes did require extra code to prevent a single definition
from setting the range values in more than on place.
When using the new ANSI-C style of port declarations (1364-2001 12.3.4
list_of_port_declarations) the compiler ensures that you do not
redeclare the port in the body (it is already completely defined).
This caught a few errors in the test suite (pr859 and sqrt32*).
The flag to disable the normal port checking and allow the deprecated
port syntax is -gno-io-range-error. This will print a warning for the
case of a scalar port with a vectored definition in the body. All
other cases are still considered an error.
2007-08-29 18:10:18 -07:00
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
129a064e1a
Handle bit/part select of array words in nets.
2007-06-04 02:19:07 +00:00
c7d97f4146
Properly evaluate scope path expressions.
2007-06-02 03:42:12 +00:00
17fd3bae15
Missing return value to perm_string dump
2007-05-31 18:35:50 +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
ae88f5cc68
Lint fixes.
2007-03-07 00:38:15 +00:00
e6fa72c318
Handle processes within generate loops.
2007-03-05 05:59:10 +00:00
c1c2381261
Parse all specify paths to pform.
2007-02-12 01:52:21 +00:00
0edb5a7547
Basic support for specify timing.
2006-09-23 04:57:19 +00:00
0d17e57656
Dump indexes of ident expressions
2006-04-28 04:19:31 +00:00
f001d0001a
Add support for generate loops w/ wires and gates.
2006-04-10 00:37:42 +00:00
a652719876
Add support for indexed select attached to parameters.
2005-10-04 04:09:25 +00:00
b9799cf6ec
Remove NetVariable and ivl_variable_t structures.
2005-07-11 16:56:50 +00:00
75ad90534b
Generalize signals to carry types.
2005-07-07 16:22:49 +00:00
e4ae832153
Clean up spurious trailing white space.
2004-10-04 01:10:51 +00:00
5472b27e1f
Rewire/generalize parsing an elaboration of
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function return values to allow for better
speed and more type support.
2004-05-31 23:34:36 +00:00
e7fa56981a
More identifier lists use perm_strings.
2004-05-25 19:21:06 +00:00
177b6ffb6a
Addtrbute keys are perm_strings.
2004-02-20 18:53:33 +00:00
1295058e5d
parameter keys are per_strings.
2004-02-20 06:22:56 +00:00
27af95d402
Use perm_strings for named langiage items.
2004-02-18 17:11:54 +00:00
77da147629
Fix some enumeration warnings.
2003-07-05 20:42:08 +00:00
ccf4d4d7da
Module attributes from the parser
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through to elaborated form.
2003-06-20 00:53:19 +00:00
3ef65d1298
Properly manage real variables in subscopes.
2003-06-13 19:10:45 +00:00
e58030498f
specparams as far as pform.
2003-02-27 06:45:11 +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
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
bfad382fd1
Carry Verilog 2001 attributes with processes,
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all the way through to the ivl_target API.
Divide signal reference counts between rval
and lval references.
2002-05-26 01:39:02 +00:00
700887d657
Verilog 2001 attriubtes on nets/wires.
2002-05-24 04:36:23 +00:00
e6c0629626
Add language support for Verilog-2001 attribute
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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.
2002-05-23 03:08:50 +00:00
bf10c5762a
Parse port_declaration_lists from the 2001 Standard.
2002-05-19 23:37:28 +00:00
b094bbdcf4
Add support for conbinational events by finding
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the inputs to expressions and some statements.
Get case and assignment statements working.
2002-04-21 04:59:07 +00:00
712080f7e0
Detect scalar/vector declarion mismatch.
2002-01-26 05:28:28 +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
b825f8d2b2
Create a config.h.in file to hold all the config
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junk, and support gcc 3.0. (Stephan Boettcher)
2001-07-25 03:10:48 +00:00
02fc59fbdf
Parse parameters within nested scopes.
2001-01-13 22:20:08 +00:00
5dbea64759
Add support for signed reg variables,
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simulate in t-vvm signed comparisons.
2000-12-11 00:31:43 +00:00
084a464cf1
Support decimal constants in behavioral delays.
2000-12-10 22:01:35 +00:00
28bc621f11
change set for support of nmos, pmos, rnmos, rpmos, notif0, and notif1
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change set to correct behavior of bufif0 and bufif1
(Tim Leight)
Also includes fix for PR#27
2000-11-11 01:52:09 +00:00
f526d235d1
Check for missing concat subexpressions (PR#11)
2000-10-14 02:23:02 +00:00
739365abe5
Parse disable statements to pform.
2000-07-26 05:08:07 +00:00
8fc2dc2cd1
Better parsing of expressions lists will empty expressoins.
2000-05-23 16:03:13 +00:00
3676d66408
Module ports are really special PEIdent
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expressions, because a name can be used
many places in the port list.
2000-05-16 04:05:15 +00:00
367db72c99
Add support for procedural continuous assignment.
2000-05-11 23:37:26 +00:00
ca2fd41bb6
Carry assignment strength to pform.
2000-05-06 15:41:56 +00:00
Stephen Williams
Cary R
steve