e26b9e72a2
More array fixes and down indexed part selects can be a lval.
...
Here are some more array fixes. They are mostly better error messages
instead of just asserting and some code cleanup. The one new thing
that probably should have been a separate submission is that down
indexed part select [base -: width] can now be a lvalue.
2007-11-07 20:53:27 -08:00
51293b6e91
Fix/enhance array part select code.
...
This patch fixes/enhances the array part select code. It also
verifies that any lval array index in a continuous assignment
is a constant value. Also, %set/av now uses index register 1 as
described in the documentation (as a bit offset).
2007-11-07 20:52:56 -08:00
e39b3fea1f
Display a warning for a part select of an array.
...
It is illegal to perform a part select on an array. This patch
adds an error message instead of failing an assert.
2007-11-07 20:28:46 -08:00
27b704b054
Regularize padding of signed constants
...
Factor common code for processing signed constants to be padded.
In the process, fix some minor bugs in the padding decisions.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-10-15 20:17:06 -07:00
371c5d932d
Correct wrong or misleading comments.
2007-07-06 12:46:32 -07:00
018f1a6e7f
Handle indexed part select in continuous assign.
...
Non-constant indexed part select in continuous assignment generates
a select node with the correct width. In the process factor out and
share some of the part select calculations with expr part select
handling methods.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-07-02 20:53:02 -07:00
8ec6d9983d
Put instantiated modules in the proper generated scope.
2007-06-12 04:05:45 +00:00
129a064e1a
Handle bit/part select of array words in nets.
2007-06-04 02:19:07 +00:00
c7d97f4146
Properly evaluate scope path expressions.
2007-06-02 03:42:12 +00:00
ddd36ecb6c
Rework the heirarchical identifier parse syntax and pform
...
to handle more general combinations of heirarch and bit selects.
2007-05-24 04:07:11 +00:00
22efa9f066
Fix elaboration of multiply of two constants.
2007-04-18 01:40:49 +00:00
fe65ae8db0
Support part select of array words in net contexts.
2007-04-17 04:18:10 +00:00
611d2c81b3
Spelling fixes from Larry
2007-03-22 16:08:14 +00:00
bb02da0319
Better error message around repeat concatenation syntax.
2007-02-27 06:10:16 +00:00
6804732b9e
Spelling fixes (larry doolittle)
2007-02-26 19:49:48 +00:00
326329d497
Set some missing local flags.
2007-02-05 01:42:31 +00:00
d52f41535f
Ternary output node is local.
2007-02-01 19:06:06 +00:00
074a6a44e3
Detect and report arrays without index in net contexts.
2007-02-01 03:14:33 +00:00
b2e1db6adb
Add method to bind assertions to verilog source lines.
2007-01-31 04:21:10 +00:00
4b829bf04f
Get argument widths right for shift results.
2007-01-20 02:10:45 +00:00
e4d7eda02a
Fix missing data_type mark for array words.
2007-01-19 04:26:24 +00:00
91d84e7dc7
Major rework of array handling. Memories are replaced with the
...
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
d7de70bdeb
Prevent name clash when processing parameter in net.
2006-12-08 03:43:26 +00:00
041091cfac
Fix nexus widths for direct link assign and ternary nets.
2006-11-26 06:29:16 +00:00
fc0695beb6
Handle 64bit delay constants.
2006-08-08 05:11:37 +00:00
33a391cb71
Sign extend operands of signed addition.
2006-06-20 05:06:47 +00:00
80f30be9d0
Add support for system functions in continuous assignments.
2006-06-18 04:15:50 +00:00
71faebd6df
Make elaborate_expr methods aware of the width that the context
...
requires of it. In the process, fix sizing of the width of unary
minus is context determined sizes.
2006-06-02 04:48:49 +00:00
019d61f633
Get self-determined unary - width right.
2006-05-19 04:44:55 +00:00
a8b86ea3bb
More explicit datatype setup.
2006-05-01 20:47:58 +00:00
0c9fb766b6
Get the data type of part select results right.
2006-04-30 05:17:48 +00:00
47b72c3b74
Handle padding of MUX net results.
2006-04-28 05:09:51 +00:00
a2c036d5ab
Allow concatenations as arguments to inout ports.
2006-04-28 04:28:35 +00:00
c2ff3d501c
Fix support for indexed part select in continuous assign l-values.
2006-04-24 05:15:07 +00:00
decfbff2b1
Clean up index expression error message.
2006-04-10 00:32:14 +00:00
d434dd7296
Allow part selects of memory words in l-values.
2006-02-02 02:43:57 +00:00
58f182a159
Node delays can be more general expressions in structural contexts.
2006-01-02 05:33:19 +00:00
07f345da4d
Logical or/and return VT_LOGIC type.
2005-10-11 16:15:52 +00:00
21af0dbe3f
Fix data type of parameters to logic.
2005-09-19 15:21:09 +00:00
7235706923
Make sure div, mod and mult nodes have line number info.
2005-09-15 23:04:09 +00:00
4dfdc147c5
fit type elaboration of logical not.
2005-09-14 15:15:44 +00:00
4902c222fb
Check operand types for compatibility.
2005-09-01 04:10:47 +00:00
b69f59f2ec
Handle memory references is continuous assignments.
2005-08-31 05:07:31 +00:00
4a8be3db9c
Implement bi-directional part selects.
2005-08-06 17:58:16 +00:00
9a16e030b5
Match data type of PV select input/output.
2005-07-15 04:13:25 +00:00
d353ddb660
Get output type correct for binary mux (ternary) expression.
2005-07-15 00:42:02 +00:00
b9799cf6ec
Remove NetVariable and ivl_variable_t structures.
2005-07-11 16:56:50 +00:00
75ad90534b
Generalize signals to carry types.
2005-07-07 16:22:49 +00:00
739a1839ed
Do sign extension of structuran nets.
2005-05-24 01:44:27 +00:00
06e08dbdf0
Make sure comparison widths match.
2005-05-19 03:51:38 +00:00
c34e44dad0
Make sig-eq-constant optimization more effective.
2005-05-10 05:10:40 +00:00
7dd0d255a6
Add support for variable part select.
2005-05-08 23:40:14 +00:00
d548c9a5f8
Handle synthesis of concatenation expressions.
2005-05-06 00:25:13 +00:00
e8a6835d36
Make clear that memory addresses are cannonical.
2005-04-08 04:52:31 +00:00
65c7ec00e7
Rework NetRamDq and IVL_LPM_RAM nodes.
2005-04-06 05:29:08 +00:00
8184dfaed8
Handle wide operands to logical AND.
2005-03-19 06:59:53 +00:00
ca488dff4e
Handle LPM shifts.
2005-03-19 06:23:49 +00:00
53da6e9a33
Add support for LPM_UFUNC user defined functions.
2005-03-18 02:56:03 +00:00
0f914bf35a
UPdate elabrate continuous assighn of string to net.
2005-03-13 01:26:48 +00:00
ab1ca54df2
Update support for LPM_MOD.
2005-03-12 06:43:35 +00:00
1c5b4881d7
Handle case inequality in netlists.
2005-03-09 05:52:03 +00:00
257e1f9516
Support shifts and divide.
2005-02-19 02:43:38 +00:00
d74177634c
Restructure NetMux devices to pass vectors.
...
Generate NetMux devices from ternary expressions,
Reduce NetMux devices to bufif when appropriate.
2005-02-12 06:25:40 +00:00
97f83ffbe3
laborate reduction gates into LPM_RED_ nodes.
2005-02-03 04:56:20 +00:00
20be0351ae
Elaborate unary subtract and NOT in netlist
...
contexts, and concatenation too.
2005-01-30 05:20:38 +00:00
609b6a7baa
Netlist boolean expressions generate gate vectors.
2005-01-29 18:46:18 +00:00
e04fb5c083
Elaborate parameter reference to desired width without concats.
2005-01-29 16:46:22 +00:00
ade5bdcafe
Integrate pr1072 fix from v0_8-branch.
2005-01-29 00:37:06 +00:00
99ace10774
Simplified NetMult and IVL_LPM_MULT.
2005-01-28 05:39:33 +00:00
25de448d34
Remove obsolete NetSubnet class.
2005-01-22 18:16:00 +00:00
e28636776a
Change case compare from logic to an LPM node.
2005-01-22 01:06:55 +00:00
bf6a5d0f50
Implement LPM_COMPARE nodes as two-input vector functors.
2005-01-16 04:20:32 +00:00
ead2481793
Fix elaboration of == compared to constants.
2005-01-13 00:23:10 +00:00
9e94afe399
Use PartSelect/PV and VP to handle part selects through ports.
2005-01-09 20:16:00 +00:00
65e9b6be12
Rework of internals to carry vectors through nexus instead
...
of single bits. Make the ivl, tgt-vvp and vvp initial changes
down this path.
2004-12-11 02:31:25 +00:00
51dd41f81a
Fix excessive error message.
2004-10-04 03:09:38 +00:00
e4ae832153
Clean up spurious trailing white space.
2004-10-04 01:10:51 +00:00
2abdcfcaa4
Error message to match assertion.
2004-10-04 00:25:46 +00:00
180bfc5e72
Detect and prevent implicit declaration of hierarchical names.
2004-09-24 04:25:19 +00:00
7f67afe9d5
Add support for $unsigned.
2004-08-28 15:42:11 +00:00
3dbc07f34d
Implement signed divide and signed right shift in nets.
2004-06-30 02:16:26 +00:00
9ee0210cac
Code cleanup from Larry.
2004-06-24 15:22:23 +00:00
69cfdbdc54
Fix broken calcuation of NE for constant.
2004-06-22 18:41:48 +00:00
03d7448550
compare-to-constant uses sig len, not val len.
2004-06-18 16:38:22 +00:00
fd371a3958
Handle equality compare to constants specially.
2004-06-16 23:32:58 +00:00
9949040285
Add support for the default_nettype directive.
2004-06-13 04:56:53 +00:00
ba309e60bb
Fix synthesis method for logical and/or
2004-06-01 01:04:57 +00:00
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
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
930e5137ac
Catch real variables in net expressions.
2003-10-30 04:31:34 +00:00
8dab4c6b53
memory index need not be self determined width.
2003-10-20 01:44:28 +00:00
d1f0bcf620
Catch unsized expressions in continuous assigns.
2003-09-23 03:31:28 +00:00
693794552c
Remove find_memory method from Design class.
2003-09-19 03:50:12 +00:00
31c0a9dcd1
Missing case warnings.
2003-09-13 01:30:07 +00:00
ca0a9faa90
Only build a mux as wide as can be selected.
2003-09-03 04:29:18 +00:00
7c1401a2ba
Spelling patch.
2003-08-28 04:11:17 +00:00
c96598a429
Primitive outputs have same limitations as continuous assignment.
2003-08-05 03:01:58 +00:00
61195c5daa
Harmless fixup of warnings.
2003-06-21 01:21:42 +00:00
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
5d1d99a89f
Handle signed magnitude compare all the
...
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
d18934d444
Sign extend NetMult inputs if result is signed.
2003-03-29 05:51:25 +00:00
4e182ebf67
Some better internal error messages.
2003-03-26 06:16:38 +00:00
1222153cdf
Keep parameter constants for the ivl_target API.
2003-03-10 23:40:53 +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
8f0c02c0fa
Spelling fixes.
2003-01-27 05:09:17 +00:00
07a427bf28
Detect null arguments to concatenation operator.
2003-01-19 00:35:39 +00:00
ca3bf14fb6
Remove useless variable.
2003-01-17 05:48:35 +00:00
c032186133
Reword some error messages for clarity.
2002-12-06 03:08:19 +00:00
cfd8cbf850
Port expressions for output ports are lnets, not nets.
2002-11-09 19:20:48 +00:00
3d3116d48b
Add support for binary NOR operator.
2002-09-18 04:29:55 +00:00
dac99b9374
Add support for binary nand operator.
2002-09-12 15:49:43 +00:00
447fee6f43
Fix padding of operand of unary minus.
2002-09-08 01:37:13 +00:00
7b6678b2a1
Fix reverse bit ordered bit select in continuous assignment.
2002-08-31 03:48:50 +00:00
63f97d8ec6
Carry mux output delays.
2002-08-21 02:28:03 +00:00
640767b748
Constants can self-size themselves in unsized contexts.
2002-08-14 03:57:27 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
693e9e5ad0
Store only the base name of memories.
2002-08-05 04:18:45 +00:00
301040a67a
Avoid emitting to vvp local net symbols.
2002-07-05 21:26:17 +00:00
b6a15b2f4d
Wide unary minus in continuous assignments.
2002-06-22 04:22:40 +00:00
cd94019733
Remove NetTmp and add NetSubnet class.
2002-06-19 04:20:03 +00:00
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
9ef49379f4
Add support for non-constant bit select.
2002-04-23 03:53:59 +00:00
0976fd393b
Do not allow implicit wires in sensitivity lists.
2002-04-22 00:53:39 +00:00
b7c2bd4f72
Add the NetUserFunc netlist node.
2002-03-09 02:10:22 +00:00
5f09e01a44
No implicit declaration in assign l-values.
2002-01-23 05:23:17 +00:00
dd79885f6d
Add structural modulus support down to vvp.
2002-01-03 04:19:01 +00:00
4bb91c4f98
Elaborate multiply nets with constant operands ad NetConst.
2001-12-31 04:23:59 +00:00
03aebd7525
Support elaborate_net for PEString objects.
2001-12-30 21:32:03 +00:00
ab6c8cb4b8
Parser and pform use hierarchical names as hname_t
...
objects instead of encoded strings.
2001-12-03 04:47:14 +00:00
4d0b840c26
Coerse input to inout when assigned to.
2001-11-10 02:08:49 +00:00
7793a49854
Remove string paths from PExpr elaboration.
2001-11-08 05:15:50 +00:00
6bfbcbdcf7
elaborate_lnet uses scope instead of string path.
2001-11-07 04:26:46 +00:00
bf72f39fe9
eval_const uses scope instead of a string path.
2001-11-07 04:01:59 +00:00
874bab10e4
NetObj constructor finally requires a scope.
2001-10-28 01:14:53 +00:00
177fa4062b
Support IVL_LPM_DIVIDE for structural divide.
2001-10-16 02:19:26 +00:00
176be94be9
dead code.
2001-09-14 04:20:49 +00:00
3c8d598eed
Elaborate == to NetCompare instead of XNOR and AND
...
gates. This allows code generators to generate
better code in certain cases.
2001-09-14 04:16:52 +00:00
b825f8d2b2
Create a config.h.in file to hold all the config
...
junk, and support gcc 3.0. (Stephan Boettcher)
2001-07-25 03:10:48 +00:00
b8c5aff0cb
Generate !== an an inverted ===
2001-07-07 04:37:18 +00:00
bcaa122fb9
handle left shifter in dll output.
2001-07-04 22:59:25 +00:00
eeabc7234c
Make sure tmp net gets connected to ramdq output
2001-07-01 23:37:48 +00:00
4b82d26f5e
Add support for structural multiply in t-dll.
...
Add code generators and vvp support for both
structural and behavioral multiply.
2001-06-16 23:45:05 +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
3ce86f5664
Make error message include error: prefix.
2001-05-17 03:34:47 +00:00
d0d6189874
Less picky about ternary operands.
2001-04-14 22:50:39 +00:00
2b0aaec8ab
FreeBSD port has a maintainer now.
2001-02-15 06:59:35 +00:00
2b903f5d0e
Detect part select out of range in nets. (PR#138)
2001-02-09 20:18:15 +00:00
d78c7392c2
Remove dead code.
2001-02-08 01:10:30 +00:00
88a2ca2168
Handle wide net constants with unary minus.
2001-01-25 02:05:16 +00:00
41242735ed
Handle some special cases of unary 2's complement,
...
and improve netlist expression width handling.
2001-01-24 02:52:30 +00:00
145ac49233
NetMux needs a scope. (PR#115)
2001-01-18 03:16:35 +00:00
f224ed3a90
Fix out-of-bound pins for comparator (PR#108)
2001-01-16 04:51:52 +00:00
5276752276
Build task outputs as lval instead of nets. (PR#98)
2001-01-10 03:13:23 +00:00
8ee00ec562
Fix net division to cope with small output sizes.
2001-01-05 03:19:47 +00:00
4eed86d519
Detect part select errors on l-values.
2000-12-01 02:55:37 +00:00
ff514aab72
pad different width inputs to muxes. (PR#14)
2000-11-04 05:06:04 +00:00
f2997d7767
Detect reverse bit order in part select. (PR#33)
2000-10-30 21:35:40 +00:00
7df9943679
get width right for reversed part select net. (PR#33)
2000-10-30 20:55:53 +00:00
f526d235d1
Check for missing concat subexpressions (PR#11)
2000-10-14 02:23:02 +00:00
4819d54d51
Fix repeat concatenation with multiple expressions (PR#10)
2000-10-08 04:59:36 +00:00
76e2c509d7
Put logic devices into scopes.
2000-10-07 19:45:42 +00:00
79b1c51e68
Detect indefinite widths where definite widths are required.
2000-09-26 05:05:58 +00:00
89d7176734
Add support for modulus (Eric Aardoom)
2000-09-17 21:26:15 +00:00
44438c9678
more robust abut ternary bit widths.
2000-09-07 21:28:51 +00:00
ac81f6a201
Rearrange NetAssign to make NetAssign_ separate.
2000-09-02 20:54:20 +00:00
a59bbdeb4f
Proper error messages when port direction is missing.
2000-08-18 04:38:57 +00:00
60c2046be6
Extend x or z that is top bit of a constant.
2000-08-01 22:44:26 +00:00
2a08824ae9
Detect muxing Vz as a bufufN.
2000-07-15 05:13:43 +00:00
9b59001cf9
Eleminate reduction gate for 1-bit compares.
2000-07-08 04:59:20 +00:00
cdb3eb7e6b
Connect all the l and r bits of a NE expression.
2000-07-06 18:13:24 +00:00
c2b134e7d6
Output signal of + is a temporary.
2000-06-03 02:13:15 +00:00
e0dcdf6b72
Handle wide conditions in ternary operator.
2000-05-26 05:26:11 +00:00
3676d66408
Module ports are really special PEIdent
...
expressions, because a name can be used
many places in the port list.
2000-05-16 04:05:15 +00:00
35a2690d75
Properly elaborate repeat concatenations.
2000-05-07 20:48:14 +00:00
ca6631fdda
Fix connection of Direction of LMP_CLSHIFT
...
to constant values. Remember to add a signal
to the nexus and connect the receiver in vvm.
2000-05-07 19:40:26 +00:00
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
0a70a8a954
Allow ternary result to be padded to result width.
2000-05-03 21:21:36 +00:00
69612ceb73
Move memories to the NetScope object.
2000-05-02 03:13:30 +00:00
8d8f1e2401
Move signal tables to the NetScope class.
2000-05-02 00:58:11 +00:00
acfb5c177d
Over agressive signal elimination in constant probadation.
2000-04-28 21:00:28 +00:00
694ff934af
Add support for integer division.
2000-04-01 21:40:22 +00:00
b9d19d3358
Speling error.
2000-03-27 04:38:15 +00:00
3265f3f63a
Remove dangerous tmp signal delete.
2000-03-20 17:54:10 +00:00
48de739506
Switch to control warnings.
2000-03-17 21:50:25 +00:00
2563e2b717
Revise the VVM backend to use nexus objects so that
...
drivers and resolution functions can be used, and
the t-vvm module doesn't need to write a zillion
output functions.
2000-03-16 19:03:03 +00:00
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
b734ecf02f
Macintosh compilers do not support ident.
2000-02-23 02:56:53 +00:00
b354cf68b8
Fix up width matching in structural bitwise operators.
2000-02-16 03:58:27 +00:00
a9264d71c6
Unary reduction operators do not set their operand width
2000-02-14 06:04:52 +00:00
57d28e4f86
Support structural XNOR.
2000-01-18 04:53:40 +00:00
aa8908c52f
Multiplication all the way to simulation.
2000-01-13 03:35:35 +00:00
3d1ffced57
Elaborate net widths of constants to as small
...
as is possible, obeying context constraints.
Comparison operators can handle operands with
different widths.
2000-01-11 04:20:57 +00:00
ba7fdb580d
Add a signal to nexus of padding constant.
2000-01-02 22:07:09 +00:00
9e5ff89ef3
Add structural reduction NAND,
...
Fix size coercion of structural shifts.
2000-01-02 21:45:31 +00:00
0d5e4b40d0
Structural reduction XNOR.
2000-01-02 19:39:03 +00:00
65ae92859c
NetConst can now hold wide constants.
1999-12-17 03:38:46 +00:00
Cary R
Stephen Williams
Larry Doolittle
steve