Commit Graph

73 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 4e7a5d55d0 Handle error idents in constants not in any scope (PR#97) 2001-01-12 04:31:27 +00:00
steve f4671a3082 Evaluate <= and ?: in parameter expressions (PR#81) 2000-12-16 19:03:30 +00:00
steve 084a464cf1 Support decimal constants in behavioral delays. 2000-12-10 22:01:35 +00:00
steve 056a3f7220 Allow unary operators in constant expressions. 2000-06-30 15:50:20 +00:00
steve b90cda1f3f Carry strength values from Verilog source to the
pform and netlist for gates.

 Change vvm constants to use the driver_t to drive
 a constant value. This works better if there are
 multiple drivers on a signal.
2000-05-07 04:37:55 +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 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 2dd010dc04 Named events as far as the pform. 2000-04-01 19:31:57 +00:00
steve 71a506a28a Binary and unary operators in parameter expressions. 2000-03-12 18:22:11 +00:00
steve b734ecf02f Macintosh compilers do not support ident. 2000-02-23 02:56:53 +00:00
steve 94afe54741 Standardize some of the error messages. 1999-12-31 17:38:37 +00:00
steve 71ecf8c143 Add to netlist links pin name and instance number,
and arrange in vvm for pin connections by name
 and instance number.
1999-10-31 04:11:27 +00:00
steve bb38653654 Parse system function calls. 1999-09-25 02:57:29 +00:00
steve 4594ac1c2c elaborate concatenation repeats. 1999-09-16 04:18:15 +00:00
steve 31bdb87c8f separate assign lval elaboration for error checking. 1999-09-15 04:17:52 +00:00
steve 9021f68996 is_constant method for PEConcat. 1999-07-22 02:05:20 +00:00
steve a5921ceae8 netlist support for ternary operator. 1999-07-17 19:50:59 +00:00
steve add2803267 More syntax parse with sorry stubs. 1999-06-16 03:13:29 +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 10ffaeda90 Redo constant expression detection to happen
after parsing.

 Parse more operators and expressions.
1999-05-16 05:08:42 +00:00
steve d27f260bc1 Check net ranges in declarations. 1998-11-11 00:01:51 +00:00
steve 3fb7a053be Introduce verilog to CVS. 1998-11-03 23:28:49 +00:00