Commit Graph

168 Commits

Author SHA1 Message Date
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 02fc59fbdf Parse parameters within nested scopes. 2001-01-13 22:20:08 +00:00
steve cc18d065aa declaration initialization for time variables. 2001-01-06 06:31:58 +00:00
steve 68e672e61a Support arrays of integers. 2001-01-06 02:29:35 +00:00
steve c9881c115a Spelling error. 2000-12-16 17:16:08 +00:00
steve 5dbea64759 Add support for signed reg variables,
simulate in t-vvm signed comparisons.
2000-12-11 00:31:43 +00:00
steve 084a464cf1 Support decimal constants in behavioral delays. 2000-12-10 22:01:35 +00:00
steve f6507cba43 Check lvalue of procedural continuous assign (PR#29) 2000-12-06 06:31:09 +00:00
steve 789e862ca4 parse real and realtime declarations. 2000-12-05 22:32:05 +00:00
steve 3591e06c4e Support time variables. 2000-10-31 17:49:02 +00:00
steve 88c8547486 Remove C++ string from variable lists. 2000-10-31 17:00:04 +00:00
steve f526d235d1 Check for missing concat subexpressions (PR#11) 2000-10-14 02:23:02 +00:00
steve 3a2eff2265 Parse specify delay values. 2000-09-23 03:04:10 +00:00
steve 67472379b4 Error message for invalid variable list. 2000-09-13 16:32:26 +00:00
steve 30a81731dd Introduce min:typ:max support. 2000-07-29 17:58:20 +00:00
steve 739365abe5 Parse disable statements to pform. 2000-07-26 05:08:07 +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 056a3f7220 Allow unary operators in constant expressions. 2000-06-30 15:50:20 +00:00
steve 042724612e Handle delay_value_lists in simple paths. (Wen-jung Tseng) 2000-06-27 16:00:40 +00:00
steve 14d87e3e11 Typo saving third delay value in list. 2000-05-31 01:31:52 +00:00
steve 8fc2dc2cd1 Better parsing of expressions lists will empty expressoins. 2000-05-23 16:03:13 +00:00
steve 3676d66408 Module ports are really special PEIdent
expressions, because a name can be used
 many places in the port list.
2000-05-16 04:05:15 +00:00
steve 367db72c99 Add support for procedural continuous assignment. 2000-05-11 23:37:26 +00:00
steve de1a7a0933 Deliver gate output strengths to the netlist. 2000-05-08 05:30:19 +00:00
steve ca2fd41bb6 Carry assignment strength to pform. 2000-05-06 15:41:56 +00:00
steve fbe475ef7d Add infrastructure for system functions, move
$time to that structure and add $random.
2000-05-04 03:37:58 +00:00
steve 44838f8973 Add support for force assignment. 2000-04-22 04:20:19 +00:00
steve 23725cf42c Catch bad operand to some unary operators. 2000-04-21 03:22:18 +00:00
steve 7484feceb5 fork-join support in vvm. 2000-04-15 19:51:30 +00:00
steve b1fd927acb Named events really should be expressed with PEIdent
objects in the pform,

 Handle named events within the mix of net events
 and edges. As a unified lot they get caught together.
 wait statements are broken into more complex statements
 that include a conditional.

 Do not generate NetPEvent or NetNEvent objects in
 elaboration. NetEvent, NetEvWait and NetEvProbe
 take over those functions in the netlist.
2000-04-12 04:23:57 +00:00
steve 67bdd433a9 Detect the signed keyword. 2000-04-02 04:25:39 +00:00
steve 2dd010dc04 Named events as far as the pform. 2000-04-01 19:31:57 +00:00
steve 6eef54595f Support localparam. 2000-03-12 17:09:40 +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 1698a19cf6 Parse all the various edge types. 2000-03-05 18:26:51 +00:00
steve b734ecf02f Macintosh compilers do not support ident. 2000-02-23 02:56:53 +00:00
steve 2de887c2ff Support named parameter override lists. 2000-01-09 05:50:48 +00:00
steve 645c24289e Handle general constant expressions in delays. 2000-01-02 01:59:52 +00:00
steve 7e37b61a05 Fix module parameter override syntax. 2000-01-01 23:47:58 +00:00
steve 31f1ceea9f delay1 expressions can take parentheses. 1999-12-31 17:39:00 +00:00
steve 5ce35e3e60 Fix event trigger and repeat control parse errors. 1999-12-31 03:24:30 +00:00
steve 6d0edcf58a Support reg initial assignment syntax. 1999-12-30 19:06:14 +00:00
steve a4a0ba670d Allow qualified identifiers. They really do work. 1999-11-15 04:43:52 +00:00
steve f7526c6c4b parse drive strengths. 1999-11-05 19:36:36 +00:00
steve 2fb754cd54 Parse empty source files. 1999-10-15 05:03:33 +00:00
steve c63a3acf93 Elaborate ~^ and ~| operators. 1999-09-30 02:43:01 +00:00
steve b37fcf3593 Handle declaration of integers (including scope) in functions. 1999-09-30 01:22:37 +00:00
steve 076cecb6cd Handle null returns from function_item 1999-09-30 00:48:04 +00:00
steve 5ee7cfb854 Fix shift/reduce warnings and ?:. (dhn@qedinc.com) 1999-09-29 22:56:31 +00:00
steve 93f05306e7 Standardize error/sorry messages. 1999-09-29 21:16:32 +00:00
steve a64a33e65a Full case support 1999-09-29 18:36:02 +00:00
steve bb38653654 Parse system function calls. 1999-09-25 02:57:29 +00:00
steve 12b9071f49 Parse and elaborate named for/join blocks. 1999-09-22 04:30:04 +00:00
steve da4a7ea80a assignment with blocking event delay. 1999-09-22 02:00:48 +00:00
steve 424e6a750c Handle unconnected module ports. 1999-09-17 02:06:25 +00:00
steve 287d21f300 Handle integers at task parameters. 1999-09-10 05:02:09 +00:00
steve 6fb7120158 Parse non-blocking assignment delays. 1999-09-02 01:59:27 +00:00
steve 3017636c05 continuous assignment lists. 1999-08-27 15:08:37 +00:00
steve 23acca48ff elaborate some aspects of functions. 1999-08-25 22:22:41 +00:00
steve 9eae940ebd Parameter overrides support from Peter Monta
AND and XOR support wide expressions.
1999-08-23 16:48:39 +00:00
steve 0fdc7657ef Fix handling of port name when . notation is used. 1999-08-03 04:48:51 +00:00
steve 5f10342f52 Parse into pform arbitrarily complex module
port declarations.
1999-08-03 04:14:49 +00:00
steve 4b057c2d93 Get gat names, instead of the first character. 1999-08-01 23:25:51 +00:00
steve 71d35f32b2 Parse and elaborate rise/fall/decay times
for gates, and handle the rules for partial
 lists of times.
1999-08-01 16:34:50 +00:00
steve e0a988bf7e Add functions up to elaboration (Ed Carter) 1999-07-31 19:14:47 +00:00
steve 55654db9df quietly ignore specify code. 1999-07-28 03:47:24 +00:00
steve 93a77a2efd Elaborate task input ports. 1999-07-24 02:11:19 +00:00
steve 6852a62e5a procedural blocking assignment delays. 1999-07-12 00:59:36 +00:00
steve c8d13d7a1c Support concatenate in l-values. 1999-07-10 02:19:26 +00:00
steve 46df679fc5 remove string from lexical phase. 1999-07-10 01:03:18 +00:00
steve 3ff6912bdd Elaborate user defined tasks. 1999-07-03 02:12:51 +00:00
steve 11b2b1740a Handle expression widths for EEE and NEE operators,
add named blocks and scope handling,
 add registers declared in named blocks.
1999-06-24 04:24:18 +00:00
steve 853ad247a1 Elaborate and supprort to vvm the forever
and repeat statements.
1999-06-19 21:06:16 +00:00
steve c01399fcda Parse some more specify syntax. 1999-06-19 03:21:21 +00:00
steve 37b60a4c52 Clean up interface of the PWire class,
Properly match wire ranges.
1999-06-17 05:34:42 +00:00
steve add2803267 More syntax parse with sorry stubs. 1999-06-16 03:13:29 +00:00
steve fabb146342 Support case expression lists. 1999-06-15 05:38:39 +00:00
steve 430d7b22e4 Add lexical support for real numbers. 1999-06-15 02:50:02 +00:00
steve 0d210c90e5 More unary operators. 1999-06-13 17:30:23 +00:00
steve a22e43cb7a Handle part selects as l-values to continuous assign. 1999-06-12 23:16:37 +00:00
steve 29da349106 parse more verilog. 1999-06-12 20:35:27 +00:00
steve 63627de7fa More parseable syntax. 1999-06-12 03:42:57 +00:00
steve fdaae4aa2a Forgot to return th for statement object. 1999-06-10 05:33:12 +00:00
steve 7c2cf8b2fa Add support for the Ternary operator,
Add support for repeat concatenation,
 Correct some seg faults cause by elaboration
 errors,
 Parse the casex anc casez statements.
1999-06-10 04:03:52 +00:00
steve 1464851e0e Add support for procedural concatenation expression. 1999-06-09 03:00:05 +00:00
steve 7605a7b1f0 Add parse and elaboration of non-blocking assignments,
Replace list<PCase::Item*> with an svector version,
 Add integer support.
1999-06-06 20:45:38 +00:00
steve f3a91a10b3 Line information with nets. 1999-06-02 15:38:46 +00:00
steve 2a85ee5059 Net declaration assignments. 1999-06-02 02:56:29 +00:00
steve 0ca5a282e5 parse functions and tasks and delay value lists. 1999-05-30 03:12:56 +00:00
steve 35893919e0 module parameter bind by name. 1999-05-29 02:36:17 +00:00
steve c1dbb56b70 Line number information. 1999-05-27 03:31:29 +00:00
steve 0352864470 Much expression parsing work,
mark continuous assigns with source line info,
 replace some assertion failures with Sorry messages.
1999-05-20 04:31:45 +00:00
steve 10ffaeda90 Redo constant expression detection to happen
after parsing.

 Parse more operators and expressions.
1999-05-16 05:08:42 +00:00
steve 5de9b7c9f1 Parse and elaborate the concatenate operator
in structural contexts, Replace vector<PExpr*>
 and list<PExpr*> with svector<PExpr*>, evaluate
 constant expressions with parameters, handle
 memories as lvalues.

 Parse task declarations, integer types.
1999-05-10 00:16:57 +00:00
steve 6625ea71c2 Parse more things. 1999-05-08 20:19:20 +00:00
steve 8e73ff2376 Parse more complex continuous assign lvalues. 1999-05-07 04:26:49 +00:00
steve a568e526c6 Get rid of list<lgate> types. 1999-05-06 04:37:17 +00:00
steve b2b9097488 Parse more constant expressions. 1999-05-06 04:09:28 +00:00
steve 10f46dae66 More intelligent selection of module to elaborate. 1999-05-05 03:27:14 +00:00
steve 41f9a84a4b Handle much more complex event expressions. 1999-05-01 02:57:52 +00:00