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135 Commits

Author SHA1 Message Date
steve ac81f6a201 Rearrange NetAssign to make NetAssign_ separate. 2000-09-02 20:54:20 +00:00
steve ff32325d07 t-dll iterates signals, and passes them to the 
target module.

 Some of NetObj should return char*, not string.
 2000-08-27 15:51:50 +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 583868e74e Redesign Links to include the Nexus class that 
carries properties of the connected set of links.
 2000-06-25 19:59:41 +00:00
steve e52ada617e Get rid of useless next_link method. 2000-06-24 22:55:19 +00:00
steve 66ae567b25 Index in memory assign should be a NetExpr. 2000-06-13 03:24:48 +00:00
steve 413d852012 NetEParam supports dup_expr. 2000-06-12 03:57:10 +00:00
steve fd09bc3e3e Merge similar probes within a module. 2000-05-27 19:33:23 +00:00
steve d9eed14972 Accept different widths for add operands. 2000-05-19 01:43:16 +00:00
steve 367db72c99 Add support for procedural continuous assignment. 2000-05-11 23:37:26 +00:00
steve b28f258463 Import MCD support from Stephen Tell, and add 
system function parameter support to the IVL core.
 2000-05-07 18:20:07 +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 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 2b40c7ce11 integer division in expressions properly get width. 2000-04-28 18:43:23 +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 4f07c43976 Minor cleanup of NetTaskDef. 2000-04-18 01:02:53 +00:00
steve 726f7b8b11 Synthesis of comparator in expressions. 
Connect the NetEvent and related classes
 together better.
 2000-04-16 23:32:18 +00:00
steve 7484feceb5 fork-join support in vvm. 2000-04-15 19:51:30 +00:00
steve 4493e968da Finally remove the NetNEvent and NetPEvent classes, 
Get synthesis working with the NetEvWait class,
 and get started supporting multiple events in a
 wait in vvm.
 2000-04-12 20:02:52 +00:00
steve 30e8289239 Simulate named event trigger and waits. 2000-04-04 03:20:15 +00:00
steve b62a7ace5c Remove the useless sref template. 2000-04-02 04:26:06 +00:00
steve 694ff934af Add support for integer division. 2000-04-01 21:40:22 +00:00
steve d97ab9be23 New and improved combinational primitives. 2000-03-29 04:37:10 +00:00
steve 6eef54595f Support localparam. 2000-03-12 17:09:40 +00:00
steve 61822d48aa Handle defparam to partial hierarchical names. 2000-03-10 06:20:48 +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 fac3bde2c8 Elaborate parameters afer binding of overrides. 2000-01-10 01:35:23 +00:00
steve b6d1bb1fa7 Propogate constant 0 in low bits of adders. 1999-12-30 04:19:12 +00:00
steve 65ae92859c NetConst can now hold wide constants. 1999-12-17 03:38:46 +00:00
steve d54cc14ca2 Simulate carry output on adders. 1999-12-16 02:42:14 +00:00
steve 09de918198 Generate XNF RAMS from synthesized memories. 1999-12-05 19:30:42 +00:00
steve 3e2bb85f58 Synthesize LPM_RAM_DQ for writes into memories. 1999-12-05 02:24:08 +00:00
steve 22d89c5984 Update case comparison (Eric Aardoom). 1999-12-02 16:58:58 +00:00
steve e96e8c62be NetESignal object no longer need to be NetNode 
objects. Let them keep a pointer to NetNet objects.
 1999-11-28 23:42:02 +00:00
steve 48b6726cf4 gate outputs need to set signal values. 1999-11-28 01:16:18 +00:00
steve 4cfa3e4047 Support the creation of scopes. 1999-11-27 19:07:57 +00:00
steve 26288eeeb4 Detect and list scope names. 1999-11-24 04:01:58 +00:00
steve 7324673bd1 Fix expression width of memory references. 1999-11-21 18:03:35 +00:00
steve 4cfa715092 Memory name lookup handles scopes. 1999-11-21 17:35:37 +00:00
steve a81dcd7955 Support memories in continuous assignments. 1999-11-21 00:13:08 +00:00
steve fae40cf380 handle duplicate connect to a nexus. 1999-11-19 05:02:37 +00:00
steve 8b81d6e416 Detect flip-flops connected to opads and turn 
them into OUTFF devices. Inprove support for
 the XNF-LCA attribute in the process.
 1999-11-19 03:02:25 +00:00
steve 9d6392fda9 Turn NetTmp objects into normal local NetNet objects, 
and add the nodangle functor to clean up the local
 symbols generated by elaboration and other steps.
 1999-11-18 03:52:19 +00:00
steve 513ade9b95 Support combinatorial comparators. 1999-11-14 23:43:45 +00:00