893aae2ca4
Add BUFZ to input ports when necessary.
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When driving an input port to a module, watch out for the case where
the net is also driven within the instance. If this is the case, take
pains to make sure what goes on in the instance doesn't leak out
through the input port. Add a BUFZ (continuous assignment) to isolate
the context from internal driving.
2008-08-06 21:04:52 -07:00
f7e840cd0a
Fix another delete[]/free problem.
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This patch fixes a delete[] vs free problem in the NexusSet
class. The items_ array was being allocated with malloc/realloc
and freed with delete[]. The quick fix was to replace delete[]
with a call to free(). A better fix would probably be to rework
the class to use a vector.
2008-04-04 21:31:14 -07:00
f1f2806e3c
Get delays of signed extended continuous assignments right.
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Padding and continuous assignment caused problems if the continuous
assignment includes a delay. The problem is that the padding was
not necessarily included in the delay. Rework the elaboration to
make sure the padding is indeed included in the delay.
2008-02-01 20:13:23 -08:00
8ea3b6b0b8
header includes for gcc-4.3 compatibility
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minimal changes required to build without error
tested with gcc-4.3 (Debian 4.3-20071130-1) 4.3.0 20071130 (experimental)
2008-01-04 16:14:44 -08:00
c7d97f4146
Properly evaluate scope path expressions.
2007-06-02 03:42:12 +00:00
fe8da0bf14
Remove pretense of general use for t_cookie.
2007-03-26 18:17:50 +00:00
d434dd7296
Allow part selects of memory words in l-values.
2006-02-02 02:43:57 +00:00
cf85c19f7b
Simplify NexusSet set handling.
2005-09-25 23:40:11 +00:00
4413dd3c81
Fix compile errors.
2005-06-13 23:22:37 +00:00
365cfedd55
Update DFF support to new data flow.
2005-04-24 23:44:01 +00:00
9e94afe399
Use PartSelect/PV and VP to handle part selects through ports.
2005-01-09 20:16:00 +00:00
27af95d402
Use perm_strings for named langiage items.
2004-02-18 17:11:54 +00:00
f56d763411
Move strstream to ostringstream for compatibility.
2003-01-14 21:16:18 +00:00
3d4593d4d5
Synthesizer support for synchronous begin-end blocks.
2002-10-21 01:42:08 +00:00
2fad8d4cff
Detect temporaries in sequential block synthesis.
2002-08-18 22:07:16 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
70abb2ce5c
Clear drive cache on link or unlink.
2002-07-03 03:08:47 +00:00
9b6b081e38
Add structure for asynchronous logic synthesis.
2002-06-30 02:21:31 +00:00
58c2e12507
Make link_drive_constant cache its results in
...
the Nexus, to improve cprop performance.
2002-06-24 01:49:38 +00:00
b094bbdcf4
Add support for conbinational events by finding
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the inputs to expressions and some statements.
Get case and assignment statements working.
2002-04-21 04:59:07 +00:00
b825f8d2b2
Create a config.h.in file to hold all the config
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junk, and support gcc 3.0. (Stephan Boettcher)
2001-07-25 03:10:48 +00:00
6f69773c57
ivl_target updates, including more complete
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handling of ivl_nexus_t objects. Much reduced
dependencies on pointers to netlist objects.
2000-10-06 23:46:50 +00:00
8876cda37f
Get at gate information for ivl_target interface.
2000-08-26 00:54:03 +00:00
42e4ff47c8
Move inital value handling from NetNet to Nexus
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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
583868e74e
Redesign Links to include the Nexus class that
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carries properties of the connected set of links.
2000-06-25 19:59:41 +00:00
Stephen Williams
Cary R
Larry Doolittle
steve