Commit Graph

30 Commits

Author SHA1 Message Date
Stephen Williams fa05344738 Parameter names in generate blocks from containing scopes.
Parameter names used in generate blocks can look in containing
scopes (but not past the containing module) for their definitions.
2007-07-21 17:47:37 -07:00
Stephen Williams 845e74c30e Evaluate parameter expressions losslessly
Make sure parameter expressions are evaluated losslessly, as if
the l-value is unsigned and thus virtually infinite.
2007-06-27 22:05:36 -07:00
steve c7d97f4146 Properly evaluate scope path expressions. 2007-06-02 03:42:12 +00:00
steve ddd36ecb6c Rework the heirarchical identifier parse syntax and pform
to handle more general combinations of heirarch and bit selects.
2007-05-24 04:07:11 +00:00
steve b981c81d37 Rework hname_t to use perm_strings. 2007-04-26 03:06:21 +00:00
steve c339dc4bbc Remove last bits of relax_width methods, and use test_width
to calculate the width of an r-value expression that may
 contain unsized numbers.
2006-11-04 06:19:24 +00:00
steve 71faebd6df Make elaborate_expr methods aware of the width that the context
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
steve d434dd7296 Allow part selects of memory words in l-values. 2006-02-02 02:43:57 +00:00
steve 908955c72c Handle bit select of parameter with ranges. 2005-11-27 05:56:20 +00:00
steve 1295058e5d parameter keys are per_strings. 2004-02-20 06:22:56 +00:00
steve 5903f0744c Support parameters in real expressions and
as real expressions, and fix multiply and
 divide with real results.
2003-05-30 02:55:32 +00:00
steve 8f0c02c0fa Spelling fixes. 2003-01-27 05:09:17 +00:00
steve 9f80ed32b6 Support bit select in constant expressions. 2002-12-05 02:14:33 +00:00
steve aa8869a3c7 Postpone parameter width check to evaluation. 2002-11-09 01:40:19 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve a3eb6868ea Allow parameters in concatenation of widths are defined. 2002-05-06 02:30:27 +00:00
steve 8667b9a35d Put off evaluation of concatenation repeat expresions
until after parameters are defined. This allows parms
 to be used in repeat expresions.

 Add the builtin $signed system function.
2002-05-05 21:11:49 +00:00
steve 364ffc9024 Add support for bit select of parameters.
This leads to a NetESelect node and the
 vvp code generator to support that.
2002-01-28 00:52:41 +00:00
steve ab6c8cb4b8 Parser and pform use hierarchical names as hname_t
objects instead of encoded strings.
2001-12-03 04:47:14 +00:00
steve bf72f39fe9 eval_const uses scope instead of a string path. 2001-11-07 04:01:59 +00:00
steve 494b5ff1ee parameter names do not have defined size. 2001-10-07 03:38:08 +00:00
steve b825f8d2b2 Create a config.h.in file to hold all the config
junk, and support gcc 3.0. (Stephan Boettcher)
2001-07-25 03:10:48 +00:00
steve 219df169a3 Generalize the evaluation of floating point delays, and
get it working with delay assignment statements.

 Allow parameters to be referenced by hierarchical name.
2001-01-14 23:04:55 +00:00
steve 120a211e68 Support a bunch of unary operators in parameter expressions. 2001-01-02 04:21:13 +00:00
steve f4671a3082 Evaluate <= and ?: in parameter expressions (PR#81) 2000-12-16 19:03:30 +00:00
steve 80878e2e53 Support concatenation in parameter expressions. 2000-06-13 05:22:16 +00:00
steve 9c1dc92d74 Parameters can be strings. 2000-06-01 02:31:39 +00:00
steve 71a506a28a Binary and unary operators in parameter expressions. 2000-03-12 18:22:11 +00:00
steve 79f772200a Allow parameter identifiers in parameter expressions. 2000-03-12 04:35:22 +00:00
steve e7efc2709a Redesign the implementation of scopes and parameters.
I now generate the scopes and notice the parameters
 in a separate pass over the pform. Once the scopes
 are generated, I can process overrides and evalutate
 paremeters before elaboration begins.
2000-03-08 04:36:53 +00:00