640231bbfa
Add code to prevent broken synthesis in devel. from core dumping.
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This patch adds code to prevent the broken synthesis code in
the development branch from core dumping. Broken code here
refers to the Icarus code not a Verilog file.
2008-04-04 21:38:59 -07:00
7975e14b5c
LineInfo uses perm_string for path.
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Rework the handling of file names to use a perm_string heap to hold
the file names, instead of the custom file name heap in the lexor.
Also rename the get_line to get_fileline to reflect its real duties.
This latter chage touched a lot of files.
2007-12-20 12:31:01 -05:00
91d84e7dc7
Major rework of array handling. Memories are replaced with the
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more general concept of arrays. The NetMemory and NetEMemory
classes are removed from the ivl core program, and the IVL_LPM_RAM
lpm type is removed from the ivl_target API.
2007-01-16 05:44:14 +00:00
365cfedd55
Update DFF support to new data flow.
2005-04-24 23:44:01 +00:00
65c7ec00e7
Rework NetRamDq and IVL_LPM_RAM nodes.
2005-04-06 05:29:08 +00:00
e4ae832153
Clean up spurious trailing white space.
2004-10-04 01:10:51 +00:00
d76ad25778
Do not change reg to wire in NetAssign_ unless synthesizing.
2004-08-28 15:08:31 +00:00
177b6ffb6a
Addtrbute keys are perm_strings.
2004-02-20 18:53:33 +00:00
e331b182a7
Synthesis debug messages.
2003-12-20 00:59:31 +00:00
14150d6fba
ifdef idents correctly.
2003-08-26 16:26:01 +00:00
5cb5a19819
ivl_synthesis_cell cuts off synthesis within a module.
2003-06-23 00:14:44 +00:00
61195c5daa
Harmless fixup of warnings.
2003-06-21 01:21:42 +00:00
4fc858b676
Fix missing semi-colon warning.
2002-08-24 05:02:37 +00:00
89314d4772
Do not use hierarchical names of memories to
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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
9fc4e1eddd
Cache calculated driven value.
2002-06-25 01:33:22 +00:00
9cef973d9b
Add NetRamDq synthsesis from memory l-values.
2002-06-08 23:42:46 +00:00
53d8cdd9f8
Add support for memory words in l-value of
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non-blocking assignments, and remove the special
NetAssignMem_ and NetAssignMemNB classes.
2002-06-05 03:44:25 +00:00
91a755d0e8
Add support for memory words in l-value of
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blocking assignments, and remove the special
NetAssignMem class.
2002-06-04 05:38:43 +00:00
e6c0629626
Add language support for Verilog-2001 attribute
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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
0cebef872a
Better synthesys of DFF w/ complex l-values. (Larry Doolittle)
2001-11-30 01:22:21 +00:00
e85347bf8b
Handle part selects in l-values of DFF devices.
2001-11-29 01:58:18 +00:00
874bab10e4
NetObj constructor finally requires a scope.
2001-10-28 01:14:53 +00:00
e35ed6e91c
Change the NetAssign_ class to refer to the signal
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instead of link into the netlist. This is faster
and uses less space. Make the NetAssignNB carry
the delays instead of the NetAssign_ lval objects.
Change the vvp code generator to support multiple
l-values, i.e. concatenations of part selects.
2001-08-25 23:50:02 +00:00
becc7cb56a
Handle part select expressions as variants of
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NetESignal/IVL_EX_SIGNAL objects, instead of
creating new and useless temporary signals.
2001-07-27 04:51:44 +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
92424eea10
synthesize the rvalue of <= statements.
2000-11-22 21:18:42 +00:00
a8da692540
Add support for the t-dll backend grabing flip-flops.
2000-11-11 00:03:36 +00:00
ac81f6a201
Rearrange NetAssign to make NetAssign_ separate.
2000-09-02 20:54:20 +00:00
d677f226f3
Support <= in synthesis of DFF and ram devices.
2000-08-01 02:48:41 +00:00
5f7c298a21
Fix RAM matching.
2000-07-26 03:52:59 +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
66ae567b25
Index in memory assign should be a NetExpr.
2000-06-13 03:24:48 +00:00
ea96c3ef66
Support initialization of FF Q value.
2000-05-14 17:55:04 +00:00
cca036c4a8
Make rules consistent with token stream.
2000-05-13 22:46:22 +00:00
3c9902d93e
Use yacc based synthesizer.
2000-05-13 20:55:47 +00:00
Cary R
Stephen Williams
steve