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202 Commits

Author SHA1 Message Date
steve 5144725b8f Accept x in outputs of primitive. (PR#84) 2000-12-15 01:24:17 +00:00
steve 084a464cf1 Support decimal constants in behavioral delays. 2000-12-10 22:01:35 +00:00
steve 9ddd0491f7 Support delays on continuous assignment from idents. (PR#40) 2000-12-10 06:41:59 +00:00
steve f6507cba43 Check lvalue of procedural continuous assign (PR#29) 2000-12-06 06:31:09 +00:00
steve e310532434 Handle null statements inside a wait. (PR#60) 2000-12-01 23:52:49 +00:00
steve 28bc621f11 change set for support of nmos, pmos, rnmos, rpmos, notif0, and notif1 
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
steve f4ed0e35af Handle connectsion to internally unconnected modules (PR#38) 2000-11-05 06:05:59 +00:00
steve ad4931e813 Add scope to threads in vvm, pass that scope 
to vpi sysTaskFunc objects, and add vpi calls
 to access that information.

 $display displays scope in %m (PR#1)
 2000-10-28 00:51:41 +00:00
steve f915efaf15 Fix handling of errors in behavioral lvalues. (PR#28) 2000-10-26 17:09:46 +00:00
steve 76e2c509d7 Put logic devices into scopes. 2000-10-07 19:45:42 +00:00
steve 40028f263f Do not put noop statements into blocks. 2000-09-29 22:58:57 +00:00
steve cbe20e8bcf fix null pointer when elaborating undefined task. 2000-09-24 17:41:13 +00:00
steve 9067c91656 Correctly measure comples l-values of assignments. 2000-09-20 02:53:14 +00:00
steve b6ce313e91 move lval elaboration to PExpr virtual methods. 2000-09-09 15:21:26 +00:00
steve 4cf75adf94 Fix bit padding of assign signal-to-signal 2000-09-07 01:29:44 +00:00
steve 49570b8cd9 encapsulate access to the l-value expected width. 2000-09-07 00:06:53 +00:00
steve 24e46723b0 Change elaborate_lval to return NetAssign_ objects. 2000-09-03 17:58:35 +00:00
steve 115d24a292 Pull NetAssign_ creation out of constructors. 2000-09-02 23:40:12 +00:00
steve ac81f6a201 Rearrange NetAssign to make NetAssign_ separate. 2000-09-02 20:54:20 +00:00
steve a59bbdeb4f Proper error messages when port direction is missing. 2000-08-18 04:38:57 +00:00
steve 0243fca8dc Rearrange task and function elaboration so that the 
NetTaskDef and NetFuncDef functions are created during
 signal enaboration, and carry these objects in the
 NetScope class instead of the extra, useless map in
 the Design class.
 2000-07-30 18:25:43 +00:00
steve 4494a7a4f3 Support elaboration of disable statements. 2000-07-27 05:13:44 +00:00
steve 739365abe5 Parse disable statements to pform. 2000-07-26 05:08:07 +00:00
steve 286cef19fb Parse and elaborate timescale to scopes. 2000-07-22 22:09:03 +00:00
steve 42e4ff47c8 Move inital value handling from NetNet to Nexus 
objects. This allows better propogation of inital
 values.

 Clean up constant propagation  a bit to account
 for regs that are not really values.
 2000-07-14 06:12:56 +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 66ae567b25 Index in memory assign should be a NetExpr. 2000-06-13 03:24:48 +00:00
steve c1c0168893 Globally merge redundant event objects. 2000-05-31 02:26:49 +00:00
steve fd09bc3e3e Merge similar probes within a module. 2000-05-27 19:33:23 +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 e81ce68e8c Use bufz to make assignments directional. 2000-05-08 05:28:29 +00:00
steve c4d8ded269 non-blocking assignment to a bit select. 2000-05-07 21:17:21 +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 1db70a0c46 Move signal elaboration to a seperate pass. 2000-05-02 16:27:38 +00:00
steve 69612ceb73 Move memories to the NetScope object. 2000-05-02 03:13:30 +00:00
steve 8d8f1e2401 Move signal tables to the NetScope class. 2000-05-02 00:58:11 +00:00
steve 77361fb8a0 Overly aggressive eliding of task calls. 2000-04-28 23:12:12 +00:00
steve 3a9be680a4 Skip empty tasks. 2000-04-28 22:17:47 +00:00
steve 08e9a114a2 Catch memory word parameters to tasks. 2000-04-28 16:50:53 +00:00
steve a8114ae122 Add support for the procedural release statement. 2000-04-23 03:45:24 +00:00
steve 44838f8973 Add support for force assignment. 2000-04-22 04:20:19 +00:00
steve 99a891b8a1 Bit padding in assignment to memory. 2000-04-21 04:38:15 +00:00
steve 4f07c43976 Minor cleanup of NetTaskDef. 2000-04-18 01:02:53 +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 8dbd64121f All events now use the NetEvent class. 2000-04-10 05:26:05 +00:00
steve 72b3508911 Catch event declarations during scope elaborate. 2000-04-09 17:44:30 +00:00
steve e9b06f1022 Catch event names in parentheses. 2000-04-09 16:43:50 +00:00
steve 30e8289239 Simulate named event trigger and waits. 2000-04-04 03:20:15 +00:00
steve 6150be2324 detect unsupported block on named events. 2000-04-01 22:14:19 +00:00