fac1cc5a1c
Add user function synth and clean up expression code.
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This patch adds synthesize() for user functions. It also cleans up a
number of inconsistencies and missing checks in the expression code.
2008-02-24 20:00:18 -08:00
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
fa2712a3ee
Fix for pr1851310.
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This patch fixes a bug in the compiler which prevented array words
from being correctly selected when used in the RHS of a continuous
assignment.
2007-12-15 15:56:54 -08:00
083b9b6ee6
Handle repeat concatenation in continuous assign
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When a repeat concatenation expression is translated to a netlist,
get the repeat expression right. This comes up when an elab_and_eval
elaboration contains a repeat concationation, and the expression is
ultimately turned into a netlist by expr_synth.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-09-01 17:36:57 -07:00
c7d97f4146
Properly evaluate scope path expressions.
2007-06-02 03:42:12 +00:00
8ed1a010f7
Allow bit/part select of vectors in continuous assignments.
2007-04-15 01:37:29 +00:00
2229825783
fix handling of unary reduction logic in certain nets.
2007-04-12 05:21:54 +00:00
a863b2390c
Remove useless assert
2007-04-04 02:31:57 +00:00
326329d497
Set some missing local flags.
2007-02-05 01:42:31 +00:00
4b829bf04f
Get argument widths right for shift results.
2007-01-20 02:10:45 +00:00
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
fc0695beb6
Handle 64bit delay constants.
2006-08-08 05:11:37 +00:00
49b65e86fe
Add support for power in constant expressions.
2006-07-31 03:50:17 +00:00
ed70db84ce
Handle real valued literals in net contexts.
2006-07-08 21:48:46 +00:00
a8b86ea3bb
More explicit datatype setup.
2006-05-01 20:47:58 +00:00
dc2898cc73
fix net type of multiply output.
2006-05-01 05:40:21 +00:00
0c9fb766b6
Get the data type of part select results right.
2006-04-30 05:17:48 +00:00
a4116efd57
Fix the return type of a synthesized divide.
2006-01-03 05:15:33 +00:00
7235706923
Make sure div, mod and mult nodes have line number info.
2005-09-15 23:04:09 +00:00
b69f59f2ec
Handle memory references is continuous assignments.
2005-08-31 05:07:31 +00:00
73f3589ea6
use NetPartSelect to shrink part from high bits.
2005-06-13 23:22:14 +00:00
9278dad244
Make synthesized padding vector-aware.
2005-06-13 22:26:03 +00:00
3bd09d1470
synthesis of Logic and shifts using vector gates.
2005-05-15 04:47:00 +00:00
d548c9a5f8
Handle synthesis of concatenation expressions.
2005-05-06 00:25:13 +00:00
af7e196518
synthesis of add and unary get vector widths right.
2005-04-25 01:30:31 +00:00
365cfedd55
Update DFF support to new data flow.
2005-04-24 23:44:01 +00:00
ab1ca54df2
Update support for LPM_MOD.
2005-03-12 06:43:35 +00:00
257e1f9516
Support shifts and divide.
2005-02-19 02:43:38 +00:00
d74177634c
Restructure NetMux devices to pass vectors.
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Generate NetMux devices from ternary expressions,
Reduce NetMux devices to bufif when appropriate.
2005-02-12 06:25:40 +00:00
99ace10774
Simplified NetMult and IVL_LPM_MULT.
2005-01-28 05:39:33 +00:00
bf6a5d0f50
Implement LPM_COMPARE nodes as two-input vector functors.
2005-01-16 04:20:32 +00:00
65e9b6be12
Rework of internals to carry vectors through nexus instead
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of single bits. Make the ivl, tgt-vvp and vvp initial changes
down this path.
2004-12-11 02:31:25 +00:00
3dbc07f34d
Implement signed divide and signed right shift in nets.
2004-06-30 02:16:26 +00:00
2d63705093
Connect rsif of multiply to DataB.
2004-06-16 16:21:34 +00:00
e8e0cd7cab
Support / and % in synthesized contexts.
2004-06-12 15:00:02 +00:00
ba309e60bb
Fix synthesis method for logical and/or
2004-06-01 01:04:57 +00:00
177b6ffb6a
Addtrbute keys are perm_strings.
2004-02-20 18:53:33 +00:00
27af95d402
Use perm_strings for named langiage items.
2004-02-18 17:11:54 +00:00
2f8a40b159
Fix evaluation of compare to constant expression.
2004-02-15 04:23:48 +00:00
8eccb7b9a1
Remove redundant scope tokens.
2003-11-10 19:39:20 +00:00
4eae8426a9
More flexible width handling for synthesized add.
2003-10-27 06:04:21 +00:00
1cb589fee0
Assure ternary arguments are wide enough.
2003-09-26 02:44:27 +00:00
b0230cf4d4
Support synthesis of constant downshifts.
2003-09-03 23:31:36 +00:00
7c1401a2ba
Spelling patch.
2003-08-28 04:11:17 +00:00
a95463ff81
Add support for IVL_LPM_MULT device.
2003-08-09 03:23:03 +00:00
bfe31e22bf
Start handling pad of expressions in code generators.
2003-07-26 03:34:42 +00:00
21ff80075a
Various warnings fixed.
2003-06-24 01:38:02 +00:00
58f5955687
Less picky about expression widths while synthesizing ternary.
2003-04-19 04:52:56 +00:00
58f2fe73c8
Detect constant shift distances in synthesis.
2003-04-08 05:07:15 +00:00
2c129dfbfa
Synthesize shift expressions.
2003-04-08 04:33:55 +00:00
badad63ab4
All NetObj objects have lex_string base names.
2003-03-06 00:28:41 +00:00
a275133ff9
LPM objects store only their base names.
2003-02-26 01:29:24 +00:00
e941e7e805
Spelling fixes.
2003-01-30 16:23:07 +00:00
46253ed873
Rework expression parsing and elaboration to
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accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
0ccb9139c9
Magnitude compare to 0.
2002-11-17 23:37:55 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
33ee1da817
Smart synthesis of binary AND expressions.
2002-07-07 22:31:39 +00:00
301040a67a
Avoid emitting to vvp local net symbols.
2002-07-05 21:26:17 +00:00
bfad382fd1
Carry Verilog 2001 attributes with processes,
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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
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
1a22f37d92
Synthesize reduction logic.
2001-12-30 17:06:52 +00:00
dddbeb957a
Comments about MUX synthesis.
2001-12-18 05:34:02 +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
7a149a6943
Scope/module names are char* instead of string.
2001-10-20 05:21:51 +00:00
3fbbd4080a
synthesize the special case of compare with 0.
2001-08-31 22:59:48 +00:00
8356e6a51f
Properly synthesize part selects.
2001-08-05 02:49:07 +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
30787fd49e
Put synthesized signals in proper scope.
2001-07-07 01:38:45 +00:00
b3a5a0e5ab
Generate vvp code for GT and GE comparisons.
2001-06-15 04:14:18 +00:00
f480943649
Support structural addition.
2001-06-07 02:12:43 +00:00
2b0aaec8ab
FreeBSD port has a maintainer now.
2001-02-15 06:59:35 +00:00
145ac49233
NetMux needs a scope. (PR#115)
2001-01-18 03:16:35 +00:00
a5c69b50e5
Do not delete synthesized signals used in expressions.
2000-11-29 23:16:18 +00:00
ea921efced
synthesis for unary reduction ! and N operators.
2000-11-29 05:24:00 +00:00
291ab97422
Add support for || synthesis (PR#53)
2000-11-29 02:09:52 +00:00
76e2c509d7
Put logic devices into scopes.
2000-10-07 19:45:42 +00:00
8d8f1e2401
Move signal tables to the NetScope class.
2000-05-02 00:58:11 +00:00
2b40c7ce11
integer division in expressions properly get width.
2000-04-28 18:43:23 +00:00
2094a2f466
Catch some simple identity compareoptimizations.
2000-04-20 00:28:03 +00:00
726f7b8b11
Synthesis of comparator in expressions.
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Connect the NetEvent and related classes
together better.
2000-04-16 23:32:18 +00:00
b734ecf02f
Macintosh compilers do not support ident.
2000-02-23 02:56:53 +00:00
e6820ed169
Handle synthesis of concatenation.
2000-01-01 06:18:00 +00:00
4de8ba489d
Rewrite the cprop functor to use the functor_t interface.
1999-12-17 06:18:15 +00:00
65ae92859c
NetConst can now hold wide constants.
1999-12-17 03:38:46 +00:00
e96e8c62be
NetESignal object no longer need to be NetNode
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objects. Let them keep a pointer to NetNet objects.
1999-11-28 23:42:02 +00:00
4cfa3e4047
Support the creation of scopes.
1999-11-27 19:07:57 +00:00
fbf0bf1fb7
Whoops, created a signal with a duplicate name.
1999-11-19 03:00:59 +00:00
2cce0ce238
Patch to synthesize LPM_ADD_SUB from expressions,
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Thanks to Larry Doolittle. Also handle constants
in expressions.
Synthesize adders in XNF, based on a patch from
Larry. Accept synthesis of constants from Larry
as is.
1999-11-05 04:40:40 +00:00
cb5fc54b5e
Patch to synthesize unary ~ and the ternary operator.
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Thanks to Larry Doolittle <LRDoolittle@lbl.gov>.
Add the LPM_MUX device, and integrate it with the
ternary synthesis from Larry. Replace the lpm_mux
generator in t-xnf.cc to use XNF EQU devices to
put muxs into function units.
Rewrite elaborate_net for the PETernary class to
also use the LPM_MUX device.
1999-11-04 03:53:26 +00:00
b66e7b1713
Add the synthesize method to NetExpr to handle
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synthesis of expressions, and use that method
to improve r-value handling of LPM_FF synthesis.
Modify the XNF target to handle LPM_FF objects.
1999-11-02 04:55:34 +00:00
Cary R
Stephen Williams
Martin Whitaker
steve