Commit Graph

234 Commits

Author SHA1 Message Date
Stephen Williams 568e601212 Do not use "synthesize" to elaborate nets if not necessary.
The synthesize was causing memories to be exploded, whis was then causing
memory word addresses to turn into bit index statements, causing bugs.
So don't synthesize if we are not actually synthesizing.
2008-05-22 09:37:19 -07:00
steve e0bbfa512c Constant propagate addresses through NetRamDq read ports. 2006-04-23 04:26:13 +00:00
steve f02b2c9d7a Fix handling of exploded memories with partial or missing resets. 2006-04-16 19:26:37 +00:00
steve 312d09dc1d Handle asynchronous demux/bit replacements. 2006-03-26 23:09:21 +00:00
steve ef8964c65a Fix crash when memory exploding doesnot work 2006-03-16 05:40:18 +00:00
steve b8bc531f05 Fix the memsynth1 case. 2006-03-12 07:34:16 +00:00
steve 7527c466ed Handle synthesis of FF vectors with l-value decoder. 2006-02-19 00:11:31 +00:00
steve 52b8ed9077 Rework l-value handling to allow for more l-value type flexibility. 2006-01-18 01:23:23 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve 3dbc07f34d Implement signed divide and signed right shift in nets. 2004-06-30 02:16:26 +00:00
steve 9949040285 Add support for the default_nettype directive. 2004-06-13 04:56:53 +00:00
steve 5472b27e1f Rewire/generalize parsing an elaboration of
function return values to allow for better
 speed and more type support.
2004-05-31 23:34:36 +00:00
steve 1295058e5d parameter keys are per_strings. 2004-02-20 06:22:56 +00:00
steve 27af95d402 Use perm_strings for named langiage items. 2004-02-18 17:11:54 +00:00
steve f58b124101 Fix return value warnings. 2003-11-10 19:44:30 +00:00
steve c26df174a1 Oops, missing pin_Sset implementation. 2003-09-03 23:32:10 +00:00
steve e561819179 Add synthesis support for synchronous reset. 2003-08-15 02:23:52 +00:00
steve 77da147629 Fix some enumeration warnings. 2003-07-05 20:42:08 +00:00
steve 71a404a546 Add arithmetic shift operators. 2003-06-18 03:55:18 +00:00
steve 76295ac873 More complete bit range internal error message,
Better test of part select ranges on non-zero
 signal ranges.
2003-05-01 01:13:57 +00:00
steve d88d876501 Better guess of defualt ternary width. 2003-04-27 16:33:16 +00:00
steve cdbf21a92d NetSubsignal inherits port type from source. 2003-04-24 05:26:25 +00:00
steve f1cc9d865b Support event names as expressions elements. 2003-04-22 04:48:29 +00:00
steve 5d1d99a89f Handle signed magnitude compare all the
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
steve d18934d444 Sign extend NetMult inputs if result is signed. 2003-03-29 05:51:25 +00:00
steve c602d94cef Comparison operators do have defined width. 2003-03-15 18:08:43 +00:00
steve 1222153cdf Keep parameter constants for the ivl_target API. 2003-03-10 23:40:53 +00:00
steve badad63ab4 All NetObj objects have lex_string base names. 2003-03-06 00:28:41 +00:00
steve 4c67de5ca7 Add the lex_strings string handler, and put
scope names and system task/function names
 into this table. Also, permallocate event
 names from the beginning.
2003-03-01 06:25:30 +00:00
steve 04ada23119 Support in various contexts the $realtime
system task.
2003-01-27 00:14:37 +00:00
steve 46253ed873 Rework expression parsing and elaboration to
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
steve 588931fcf2 Add dup_expr for user defined function calls. 2002-11-09 00:25:27 +00:00
steve de94d09706 No need to keep excess width from an
unsigned constant value, if it can
 be trimmed safely.
2002-11-06 02:25:13 +00:00
steve 9ce2806710 Fix synth2 handling of aset/aclr signals where
flip-flops are split by begin-end blocks.
2002-10-23 01:45:24 +00:00
steve 166621bcb3 Generate vvp code for asynch set/reset of NetFF. 2002-09-26 03:18:04 +00:00
steve 7e1e44e87a Properly cast signedness of parameters with ranges. 2002-09-01 03:01:48 +00:00
steve 8ab2ec6f86 Allow release to handle removal of target net. 2002-08-19 00:06:11 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve 89314d4772 Do not use hierarchical names of memories to
generate vvp labels. -tdll target does not
 used hierarchical name string to look up the
 memory objects in the design.
2002-08-04 18:28:14 +00:00
steve 76665b9404 Fix NetBlock destructor to delete substatements. 2002-07-28 23:58:44 +00:00
steve 58ec62c895 Rewrite find_similar_event to support doing
all event matching and replacement in one
 shot, saving time in the scans.
2002-07-24 16:24:45 +00:00
steve 93bb4283b8 Change the signal to a net when assignments go away. 2002-07-02 03:02:57 +00:00
steve 5eca5d9948 Carry integerness throughout the compilation. 2002-06-21 04:59:35 +00:00
steve cd94019733 Remove NetTmp and add NetSubnet class. 2002-06-19 04:20:03 +00:00
steve 53d8cdd9f8 Add support for memory words in l-value of
non-blocking assignments, and remove the special
 NetAssignMem_ and NetAssignMemNB classes.
2002-06-05 03:44:25 +00:00
steve 91a755d0e8 Add support for memory words in l-value of
blocking assignments, and remove the special
 NetAssignMem class.
2002-06-04 05:38:43 +00:00
steve 422754f36f Support carrying the scope of named begin-end
blocks down to the code generator, and have
 the vvp code generator use that to support disable.
2002-05-27 00:08:45 +00:00
steve bfad382fd1 Carry Verilog 2001 attributes with processes,
all the way through to the ivl_target API.

 Divide signal reference counts between rval
 and lval references.
2002-05-26 01:39:02 +00:00
steve e6c0629626 Add language support for Verilog-2001 attribute
syntax. Hook this support into existing $attribute
 handling, and add number and void value types.

 Add to the ivl_target API new functions for access
 of complex attributes attached to gates.
2002-05-23 03:08:50 +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