4d8164945e
Fix missing passive setting for array word pins.
2007-01-19 04:25:37 +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
34b5a31ff4
Add test_width methods for PETernary and PEString.
2006-11-10 04:54:26 +00:00
0edb5a7547
Basic support for specify timing.
2006-09-23 04:57:19 +00:00
9fd16575d9
Support bool expressions and compares handle them optimally.
2005-09-14 02:53:13 +00:00
4a8be3db9c
Implement bi-directional part selects.
2005-08-06 17:58:16 +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
7dd0d255a6
Add support for variable part select.
2005-05-08 23:40:14 +00:00
365cfedd55
Update DFF support to new data flow.
2005-04-24 23:44:01 +00:00
800e2c6a17
All memory addresses are signed.
2005-04-08 04:51:16 +00:00
65c7ec00e7
Rework NetRamDq and IVL_LPM_RAM nodes.
2005-04-06 05:29:08 +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
ee5bb5fcaf
Add the NetRepeat node, and code generator support.
2005-02-08 00:12:36 +00:00
97f83ffbe3
laborate reduction gates into LPM_RED_ nodes.
2005-02-03 04:56:20 +00:00
99ace10774
Simplified NetMult and IVL_LPM_MULT.
2005-01-28 05:39:33 +00:00
dfb7c7ba6f
Remove the NetEBitSel and combine all bit/part select
...
behavior into the NetESelect node and IVL_EX_SELECT
ivl_target expression type.
2005-01-24 05:28:30 +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
9e94afe399
Use PartSelect/PV and VP to handle part selects through ports.
2005-01-09 20:16:00 +00:00
8f2d679c8a
Unify elaboration of l-values for all proceedural assignments,
...
including assing, cassign and force.
Generate NetConcat devices for gate outputs that feed into a
vector results. Use this to hande gate arrays. Also let gate
arrays handle vectors of gates when the outputs allow for it.
2004-12-29 23:55:43 +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
e4ae832153
Clean up spurious trailing white space.
2004-10-04 01:10:51 +00:00
3dbc07f34d
Implement signed divide and signed right shift in nets.
2004-06-30 02:16:26 +00:00
9949040285
Add support for the default_nettype directive.
2004-06-13 04:56:53 +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
1295058e5d
parameter keys are per_strings.
2004-02-20 06:22:56 +00:00
27af95d402
Use perm_strings for named langiage items.
2004-02-18 17:11:54 +00:00
f58b124101
Fix return value warnings.
2003-11-10 19:44:30 +00:00
c26df174a1
Oops, missing pin_Sset implementation.
2003-09-03 23:32:10 +00:00
e561819179
Add synthesis support for synchronous reset.
2003-08-15 02:23:52 +00:00
77da147629
Fix some enumeration warnings.
2003-07-05 20:42:08 +00:00
71a404a546
Add arithmetic shift operators.
2003-06-18 03:55:18 +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
d88d876501
Better guess of defualt ternary width.
2003-04-27 16:33:16 +00:00
cdbf21a92d
NetSubsignal inherits port type from source.
2003-04-24 05:26:25 +00:00
f1cc9d865b
Support event names as expressions elements.
2003-04-22 04:48:29 +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
c602d94cef
Comparison operators do have defined width.
2003-03-15 18:08:43 +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
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
04ada23119
Support in various contexts the $realtime
...
system task.
2003-01-27 00:14:37 +00:00
46253ed873
Rework expression parsing and elaboration to
...
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
588931fcf2
Add dup_expr for user defined function calls.
2002-11-09 00:25:27 +00:00
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
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
166621bcb3
Generate vvp code for asynch set/reset of NetFF.
2002-09-26 03:18:04 +00:00
7e1e44e87a
Properly cast signedness of parameters with ranges.
2002-09-01 03:01:48 +00:00
8ab2ec6f86
Allow release to handle removal of target net.
2002-08-19 00:06:11 +00:00
52bf4e613f
conditional ident string using autoconfig.
2002-08-12 01:34:58 +00:00
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
76665b9404
Fix NetBlock destructor to delete substatements.
2002-07-28 23:58:44 +00:00
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
93bb4283b8
Change the signal to a net when assignments go away.
2002-07-02 03:02:57 +00:00
5eca5d9948
Carry integerness throughout the compilation.
2002-06-21 04:59:35 +00:00
cd94019733
Remove NetTmp and add NetSubnet class.
2002-06-19 04:20:03 +00:00
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
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
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
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
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
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
b094bbdcf4
Add support for conbinational events by finding
...
the inputs to expressions and some statements.
Get case and assignment statements working.
2002-04-21 04:59:07 +00:00
e630ecdb0d
Ternary expressions can be signed.
2002-04-14 19:02:34 +00:00
eb27dc8db3
Support signed integer division.
2002-04-14 18:41:34 +00:00
9756cb6382
Propagate sign in unary minus.
2002-02-01 05:09:14 +00:00
349be0f169
Precalculate constant results of memory index expressions.
2002-01-22 01:40:04 +00:00
51db00fb44
Support $signed cast of expressions.
2001-12-31 00:08:14 +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
f28f5e01e5
Unary reduction operators are all 1-bit results.
2001-11-19 04:26:46 +00:00
cfed3933fa
Port close cropping behavior from mcrgb
...
Move window array reset to libmc.
2001-11-19 01:54:14 +00:00
1ff36dc892
shift expressions can have definite widths.
2001-11-06 04:32:37 +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
494b5ff1ee
parameter names do not have defined size.
2001-10-07 03:38:08 +00:00
d46465845c
Fix the size of unsized constant operants to compare (PR#274)
2001-09-29 01:53:22 +00:00
e35ed6e91c
Change the NetAssign_ class to refer to the signal
...
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
...
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
...
junk, and support gcc 3.0. (Stephan Boettcher)
2001-07-25 03:10:48 +00:00
ce589da58a
Support the NetESubSignal expressions in vvp.tgt.
2001-07-22 00:17:49 +00:00
fb0c387b12
Detect and make available to t-dll the right shift.
2001-07-07 03:01:37 +00:00
bcaa122fb9
handle left shifter in dll output.
2001-07-04 22:59:25 +00:00
79b740284a
Make NetFF constructor take const char* for the name.
2001-07-01 00:27:34 +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
66cf3ec8fa
More UDP consolidation from Stephan Boettcher.
2001-04-22 23:09:45 +00:00
0550287658
Generate vvp code for functions with ports.
2001-04-06 02:28:02 +00:00
f40d006c26
Generate code for task calls.
2001-04-02 02:28:12 +00:00
7d7beeecc1
Binary operators with operands of indefinite width
...
has itself an indefinite width.
2001-02-10 21:20:38 +00:00
d78c7392c2
Remove dead code.
2001-02-08 01:10:30 +00:00
2fbc0af1ea
Fix expression widths for rvalues and parameters (PR#131,132)
2001-02-07 21:47:13 +00:00
145ac49233
NetMux needs a scope. (PR#115)
2001-01-18 03:16:35 +00:00
cc18d065aa
declaration initialization for time variables.
2001-01-06 06:31:58 +00:00
68e672e61a
Support arrays of integers.
2001-01-06 02:29:35 +00:00
5dbea64759
Add support for signed reg variables,
...
simulate in t-vvm signed comparisons.
2000-12-11 00:31:43 +00:00
3b9a60414e
Make signal attributes available to ivl_target API.
2000-12-05 06:29:33 +00:00
4f638882c9
Add Attrib class for holding NetObj attributes.
2000-12-04 17:37:03 +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
f4443a7dfa
Add support for supply nets (PR#17)
2000-11-20 00:58:40 +00:00
a8da692540
Add support for the t-dll backend grabing flip-flops.
2000-11-11 00:03:36 +00:00
3591e06c4e
Support time variables.
2000-10-31 17:49:02 +00:00
ad4931e813
Add scope to threads in vvm, pass that scope
...
to vpi sysTaskFunc objects, and add vpi calls
to access that information.
$display displays scope in %m (PR#1)
2000-10-28 00:51:41 +00:00
76e2c509d7
Put logic devices into scopes.
2000-10-07 19:45:42 +00:00
6f69773c57
ivl_target updates, including more complete
...
handling of ivl_nexus_t objects. Much reduced
dependencies on pointers to netlist objects.
2000-10-06 23:46:50 +00:00
41f3ba65a1
xor and constant devices.
2000-10-05 05:03:01 +00:00
79b1c51e68
Detect indefinite widths where definite widths are required.
2000-09-26 05:05:58 +00:00
8b581cef46
Remove the obsolete NetEIdent class.
2000-09-26 01:35:42 +00:00
2be1c115ff
Move some NetNet method out of the header file.
2000-09-24 15:44:44 +00:00
48ff3590bc
Access to the name of a system task call.
2000-09-22 03:58:30 +00:00
ac81f6a201
Rearrange NetAssign to make NetAssign_ separate.
2000-09-02 20:54:20 +00:00
ff32325d07
t-dll iterates signals, and passes them to the
...
target module.
Some of NetObj should return char*, not string.
2000-08-27 15:51:50 +00:00
42e4ff47c8
Move inital value handling from NetNet to Nexus
...
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
18eb34921f
Add support for non-constant delays in delay statements,
...
Support evaluating ! in constant expressions, and
move some code from netlist.cc to net_proc.cc.
2000-07-07 04:53:53 +00:00
583868e74e
Redesign Links to include the Nexus class that
...
carries properties of the connected set of links.
2000-06-25 19:59:41 +00:00
e52ada617e
Get rid of useless next_link method.
2000-06-24 22:55:19 +00:00
66ae567b25
Index in memory assign should be a NetExpr.
2000-06-13 03:24:48 +00:00
413d852012
NetEParam supports dup_expr.
2000-06-12 03:57:10 +00:00
fd09bc3e3e
Merge similar probes within a module.
2000-05-27 19:33:23 +00:00
d9eed14972
Accept different widths for add operands.
2000-05-19 01:43:16 +00:00
367db72c99
Add support for procedural continuous assignment.
2000-05-11 23:37:26 +00:00
b28f258463
Import MCD support from Stephen Tell, and add
...
system function parameter support to the IVL core.
2000-05-07 18:20:07 +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
fbe475ef7d
Add infrastructure for system functions, move
...
$time to that structure and add $random.
2000-05-04 03:37:58 +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
2b40c7ce11
integer division in expressions properly get width.
2000-04-28 18:43:23 +00:00
a8114ae122
Add support for the procedural release statement.
2000-04-23 03:45:24 +00:00
44838f8973
Add support for force assignment.
2000-04-22 04:20:19 +00:00
4f07c43976
Minor cleanup of NetTaskDef.
2000-04-18 01:02:53 +00:00
726f7b8b11
Synthesis of comparator in expressions.
...
Connect the NetEvent and related classes
together better.
2000-04-16 23:32:18 +00:00
7484feceb5
fork-join support in vvm.
2000-04-15 19:51:30 +00:00
4493e968da
Finally remove the NetNEvent and NetPEvent classes,
...
Get synthesis working with the NetEvWait class,
and get started supporting multiple events in a
wait in vvm.
2000-04-12 20:02:52 +00:00
30e8289239
Simulate named event trigger and waits.
2000-04-04 03:20:15 +00:00
b62a7ace5c
Remove the useless sref template.
2000-04-02 04:26:06 +00:00
694ff934af
Add support for integer division.
2000-04-01 21:40:22 +00:00
d97ab9be23
New and improved combinational primitives.
2000-03-29 04:37:10 +00:00
6eef54595f
Support localparam.
2000-03-12 17:09:40 +00:00
61822d48aa
Handle defparam to partial hierarchical names.
2000-03-10 06:20:48 +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
aa8908c52f
Multiplication all the way to simulation.
2000-01-13 03:35:35 +00:00
fac3bde2c8
Elaborate parameters afer binding of overrides.
2000-01-10 01:35:23 +00:00
b6d1bb1fa7
Propogate constant 0 in low bits of adders.
1999-12-30 04:19:12 +00:00
65ae92859c
NetConst can now hold wide constants.
1999-12-17 03:38:46 +00:00
d54cc14ca2
Simulate carry output on adders.
1999-12-16 02:42:14 +00:00
09de918198
Generate XNF RAMS from synthesized memories.
1999-12-05 19:30:42 +00:00
3e2bb85f58
Synthesize LPM_RAM_DQ for writes into memories.
1999-12-05 02:24:08 +00:00
22d89c5984
Update case comparison (Eric Aardoom).
1999-12-02 16:58:58 +00:00
e96e8c62be
NetESignal object no longer need to be NetNode
...
objects. Let them keep a pointer to NetNet objects.
1999-11-28 23:42:02 +00:00
48b6726cf4
gate outputs need to set signal values.
1999-11-28 01:16:18 +00:00
4cfa3e4047
Support the creation of scopes.
1999-11-27 19:07:57 +00:00
26288eeeb4
Detect and list scope names.
1999-11-24 04:01:58 +00:00
7324673bd1
Fix expression width of memory references.
1999-11-21 18:03:35 +00:00
4cfa715092
Memory name lookup handles scopes.
1999-11-21 17:35:37 +00:00
a81dcd7955
Support memories in continuous assignments.
1999-11-21 00:13:08 +00:00
fae40cf380
handle duplicate connect to a nexus.
1999-11-19 05:02:37 +00:00
8b81d6e416
Detect flip-flops connected to opads and turn
...
them into OUTFF devices. Inprove support for
the XNF-LCA attribute in the process.
1999-11-19 03:02:25 +00:00
9d6392fda9
Turn NetTmp objects into normal local NetNet objects,
...
and add the nodangle functor to clean up the local
symbols generated by elaboration and other steps.
1999-11-18 03:52:19 +00:00
513ade9b95
Support combinatorial comparators.
1999-11-14 23:43:45 +00:00
1624afe1ba
Add support for the LPM_CLSHIFT device.
1999-11-14 20:24:28 +00:00
2602505885
Support the LPM_MUX in vvm.
1999-11-13 03:46:52 +00:00
2cce0ce238
Patch to synthesize LPM_ADD_SUB from expressions,
...
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.
...
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
50e47c4173
Elaborate combinational UDP devices.
1999-11-04 01:12:41 +00:00
b66e7b1713
Add the synthesize method to NetExpr to handle
...
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
89881adece
Add the synth functor to do generic synthesis
...
and add the LPM_FF device to handle rows of
flip-flops.
1999-11-01 02:07:40 +00:00
71ecf8c143
Add to netlist links pin name and instance number,
...
and arrange in vvm for pin connections by name
and instance number.
1999-10-31 04:11:27 +00:00
19b8615363
Support evaluating + operator at compile time.
1999-10-10 23:29:37 +00:00
70a1236626
Structural case equals device.
1999-10-10 01:59:54 +00:00
f949f96df1
Add non-const bit select in l-value of assignment.
1999-10-07 05:25:33 +00:00
1d215998b2
Move the rvalue into NetAssign_ common code.
1999-10-06 05:06:16 +00:00
a7f48c86e2
Relaxed width handling for <= assignment.
1999-10-05 04:02:10 +00:00
efa5222c66
Handle mutual reference of tasks by elaborating
...
task definitions in two passes, like functions.
1999-09-30 21:28:34 +00:00
a64a33e65a
Full case support
1999-09-29 18:36:02 +00:00
900949ab56
Get the bit widths of unary operators that return one bit.
1999-09-28 03:11:29 +00:00
1a21d2fe9d
Support shift operators.
1999-09-23 03:56:57 +00:00
1c41f8ebd2
Move set_width methods into a single file,
...
Add the NetEBLogic class for logic expressions,
Fix error setting with of && in if statements.
1999-09-23 00:21:54 +00:00
349f9ae302
Support parameters that reference other paramters.
1999-09-21 00:13:40 +00:00
3a5e55b229
Elaborate parameters in phases.
1999-09-20 02:21:10 +00:00
dab04c221d
Detect constant lessthen-equal expressions.
1999-09-18 01:53:08 +00:00
4594ac1c2c
elaborate concatenation repeats.
1999-09-16 04:18:15 +00:00
a890724b40
Handle implicit !=0 in if statements.
1999-09-16 00:33:45 +00:00
b04148b754
Elaborate non-blocking assignment to memories.
1999-09-15 01:55:06 +00:00
7a211b9136
Clarify msb/lsb in context of netlist. Properly
...
handle part selects in lval and rval of expressions,
and document where the least significant bit goes
in NetNet objects.
1999-09-13 03:10:59 +00:00
25d6912217
Pad r-values in certain assignments.
1999-09-12 01:16:51 +00:00
1c238f1948
Support ternary and <= operators in vvm.
1999-09-11 04:43:17 +00:00
d6fbc30cd5
Allow assign to not match rvalue width.
1999-09-08 04:05:30 +00:00
555d447180
Generate fake adder code in vvm.
1999-09-04 01:57:15 +00:00
41a1c6bb02
elaborate the binary plus operator.
1999-09-03 04:28:38 +00:00
9f7eb4a935
Handle recursive functions and arbitrary function
...
references to other functions, properly pass
function parameters and save function results.
1999-09-01 20:46:19 +00:00
e69345b9fe
Elaborate and emit to vvm procedural functions.
1999-08-31 22:38:29 +00:00
23acca48ff
elaborate some aspects of functions.
1999-08-25 22:22:41 +00:00
steve