Commit Graph

178 Commits

Author SHA1 Message Date
Stephen Williams 3b94c122b7 Constant concat operands are self determined
distinguish between self-determined and value-preserving when
evaluating constants that are arguments to concatenations.

Signed-off-by: Stephen Williams <steve@icarus.com>
2007-08-09 22:08:54 -07:00
steve c7d97f4146 Properly evaluate scope path expressions. 2007-06-02 03:42:12 +00:00
steve 1f9a246c6d Fix warning (ldolittle) 2007-05-31 18:36:06 +00:00
steve 33e5f22cf1 Handle evaluate of addition of real valued constants. 2007-04-07 04:46:18 +00:00
steve d9efe3312e Limit the calculated widths of constants. 2007-03-08 05:30:02 +00:00
steve 91d84e7dc7 Major rework of array handling. Memories are replaced with the
more general concept of arrays. The NetMemory and NetEMemory
 classes are removed from the ivl core program, and the IVL_LPM_RAM
 lpm type is removed from the ivl_target API.
2007-01-16 05:44:14 +00:00
steve ed5d3188b3 Fix padding of constant eval of NetESelect. 2006-11-04 06:16:27 +00:00
steve 2302693201 Expression widths with unsized literals are pseudo-infinite width. 2006-10-30 05:44:49 +00:00
steve 92cb1d4e2d Use elab_and_eval for bit select expressions. 2006-09-19 23:00:15 +00:00
steve 49b65e86fe Add support for power in constant expressions. 2006-07-31 03:50:17 +00:00
steve 5b3ba8c306 Properly handle signedness in compare. 2006-03-18 22:52:27 +00:00
steve 908955c72c Handle bit select of parameter with ranges. 2005-11-27 05:56:20 +00:00
steve c02b3b8ac6 Reorganize signal part select handling, and add support for
indexed part selects.

 Expand expression constant propagation to eliminate extra
 sums in certain cases.
2005-11-10 13:28:11 +00:00
steve 9fd16575d9 Support bool expressions and compares handle them optimally. 2005-09-14 02:53:13 +00:00
steve b9799cf6ec Remove NetVariable and ivl_variable_t structures. 2005-07-11 16:56:50 +00:00
steve a79fee39e9 Watch out for signed constants in magnitude compare. 2005-06-17 05:05:53 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve d1dac0017d Fix the evaluation of constant ternary expressions. 2004-09-10 23:51:42 +00:00
steve 1295058e5d parameter keys are per_strings. 2004-02-20 06:22:56 +00:00
steve 7fd669fcc0 NetEUReduce has its own dup_expr method. 2003-10-31 02:47:11 +00:00
steve 1c99c629b1 Support constant evaluation of binary ^ operator. 2003-10-26 04:54:56 +00:00
steve f495c75faf Evaluate real parameter expressions that contain real parameters. 2003-09-04 01:52:50 +00:00
steve 1a3a3fbcfa Fix || with true case on the right. 2003-08-01 02:12:30 +00:00
steve 21ff80075a Various warnings fixed. 2003-06-24 01:38:02 +00:00
steve 8352c91b0a Evaluate <= with real operands. 2003-06-05 04:28:24 +00:00
steve d3daa997b5 internal error for <= expression errors. 2003-06-04 01:26:17 +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 772a8b7dac Handle real constants evaluation > and >=. 2003-04-15 05:06:56 +00:00
steve bab0924d86 Make some effort to preserve bits while
operating on constant values.
2003-04-14 03:40:21 +00:00
steve 7a752bd111 More resilient WRT right expression width of GT. 2003-03-15 18:07:58 +00:00
steve 1222153cdf Keep parameter constants for the ivl_target API. 2003-03-10 23:40:53 +00:00
steve f8d1e15a27 NetEBDiv handles real value constant expressions. 2003-02-07 02:47:57 +00:00
steve e941e7e805 Spelling fixes. 2003-01-30 16:23:07 +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 43501809b1 Redo the parameter vector support to allow
parameter names in range expressions.
2002-10-19 22:59:49 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve 6bd8ab46d5 Eval ^ and &0 expressions. 2002-05-25 16:43:47 +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 84020b16e3 Preserve stringiness string part select and concatenation. 2002-04-27 05:03:46 +00:00
steve 10dc978778 Fixup eval of signed constants. 2002-04-27 03:17:15 +00:00
steve 714ca3542d Fix compile time eval of signed <= signed. 2002-04-24 02:47:02 +00:00
steve 6d4c6b56f6 Fix constant evaluation of unary 2002-04-14 19:28:47 +00:00
steve 9756cb6382 Propagate sign in unary minus. 2002-02-01 05:09:14 +00:00
steve 349be0f169 Precalculate constant results of memory index expressions. 2002-01-22 01:40:04 +00:00
steve b397b10104 Evaluate constant unary minus. 2001-12-30 00:39:25 +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 cfed3933fa Port close cropping behavior from mcrgb
Move window array reset to libmc.
2001-11-19 01:54:14 +00:00
steve 1921e19635 fix constant overrun in | operands. 2001-10-22 15:31:21 +00:00
steve 5c4b87675f Evaluate constant == when operands differ in width. 2001-10-20 00:11:24 +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 85d53ebbf4 Handle 0 counts in repeat concatenation. 2001-07-16 20:41:41 +00:00
steve f5d0211864 In the context of range declarations, use elab_and_eval instead
of the less robust eval_const methods.
2001-02-10 20:29:39 +00:00
steve 7ef3b44ab1 support evaluation of constant < in expressions. 2001-02-09 05:44:23 +00:00
steve 94a1d59817 Support constant evaluation of / and % (PR#124) 2001-02-07 02:46:31 +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 8bfae1e641 Evaluate constant === and !== expressions. 2001-01-04 16:49:50 +00:00
steve d5ec89813d Evaluate constant logical && and ||. 2001-01-04 04:28:42 +00:00
steve 120a211e68 Support a bunch of unary operators in parameter expressions. 2001-01-02 04:21:13 +00:00
steve b6a18098c7 Evaluate constant &, | and unary ~. 2001-01-02 03:23:40 +00:00
steve 112936d661 Fix shift and ternary operators in parameter expressions (PR#86) 2001-01-01 21:49:33 +00:00
steve fe209a6996 Handle non-constant l-values. 2000-12-16 20:00:17 +00:00
steve f4671a3082 Evaluate <= and ?: in parameter expressions (PR#81) 2000-12-16 19:03:30 +00:00
steve 21e0e8a8a1 Cnstant evaluation of NE. 2000-09-29 04:42:56 +00:00
steve fff759de20 multiply in parameter expressions. 2000-09-27 18:28:37 +00:00
steve 18eb34921f Add support for non-constant delays in delay statements,
Support evaluating ! in constant expressions, and
 move some code from netlist.cc to net_proc.cc.
2000-07-07 04:53:53 +00:00
steve 2b40c7ce11 integer division in expressions properly get width. 2000-04-28 18:43:23 +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
steve b734ecf02f Macintosh compilers do not support ident. 2000-02-23 02:56:53 +00:00
steve aa8908c52f Multiplication all the way to simulation. 2000-01-13 03:35:35 +00:00
steve 2c774bfe75 do the <= in bits, not numbers. 1999-10-22 23:57:53 +00:00
steve 19b8615363 Support evaluating + operator at compile time. 1999-10-10 23:29:37 +00:00
steve 1a21d2fe9d Support shift operators. 1999-09-23 03:56:57 +00:00
steve 1c41f8ebd2 Move set_width methods into a single file,
Add the NetEBLogic class for logic expressions,
 Fix error setting with of && in if statements.
1999-09-23 00:21:54 +00:00
steve 349f9ae302 Support parameters that reference other paramters. 1999-09-21 00:13:40 +00:00
steve 3a5e55b229 Elaborate parameters in phases. 1999-09-20 02:21:10 +00:00