3258b7726b
Pass local scope precision from compiler to vvp/etc.
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This patch adds ivl_scope_time_precision() to the compiler which can
be used to extract the local scope precision. tgt-stub and tgt-vvp
have been modified to use this new function and output a value that
is appropriate. The vvp runtime has been altered to use this new
data which is accessed with the vpip_time_precision_from_handle()
function. vpiTimePrecision uses this function to return the correct
precision.
2007-09-28 15:08:02 -07:00
14c0cfd3b1
bufif and nmos/pmos are strength aware
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The outputs to bufif and nmos/pmos devices are always strength-aware,
so should have their outputs connected to a net8 device.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-09-22 21:53:55 -07:00
7c852aa075
Add cmos/rcmos primitives.
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This patch adds the cmos and rcmos primitives.
2007-09-06 18:46:22 -07:00
88dea0c318
Remove restriction on size of constants
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Constant strings are now formed in dynamically allocated memory
instead of a fixed array.
Signed-off-by: Stephen Williams <steve@icarus.com>
2007-06-30 20:27:08 -07:00
ed698deeaa
Add support for collapsed/aliased arrays.
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Arrays of nets that have all their words collapsed together can become
a collapsed array as a whole. Add support for this case in the vvp code
generator and runtime.
2007-06-24 18:17:37 -07:00
ff7625cd9c
nexus vectors of VT_BOOL objects. (ravi@bluespec)
2007-04-12 04:40:37 +00:00
fbc731d19e
Allow nexus aliases to array words.
2007-04-10 03:40:04 +00:00
5047a3add3
variable arrays generated without writing a record for each word.
2007-04-10 01:26:15 +00:00
d883979fd8
Seperate arrayness from word count
2007-04-02 01:12:34 +00:00
611d2c81b3
Spelling fixes from Larry
2007-03-22 16:08:14 +00:00
fc9a90c9e0
Add support for edge sensitive spec paths.
2007-03-02 06:13:22 +00:00
243cf94165
Add support for conditional specify delay paths.
2007-03-01 06:19:38 +00:00
6804732b9e
Spelling fixes (larry doolittle)
2007-02-26 19:49:48 +00:00
f5a7ee0736
Remove dead code related to memories.
2007-01-17 04:39:18 +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
d6f98599f8
Do not intertangle modpaths due to references to input nets.
2006-11-23 22:42:48 +00:00
64b4e2fa01
Get the .event input from the signal instead of the signal input.
2006-11-22 06:09:08 +00:00
549f226c6e
Modpath is input to net, draw .modpath to account.
2006-10-01 23:51:15 +00:00
0edb5a7547
Basic support for specify timing.
2006-09-23 04:57:19 +00:00
06d6ac4b33
Fix/implement signed right shift.
2006-07-30 02:51:35 +00:00
80f30be9d0
Add support for system functions in continuous assignments.
2006-06-18 04:15:50 +00:00
46d86ad276
Get tail counts right in nested concatenations.
2006-04-22 04:27:36 +00:00
f001d0001a
Add support for generate loops w/ wires and gates.
2006-04-10 00:37:42 +00:00
f4a44df2cc
Support more parameter syntax.
2006-03-18 22:53:38 +00:00
8ff70410ab
Handle multiple part/bi devices connected together.
2006-03-15 05:52:20 +00:00
6f46d12e07
Add support for logic parameters.
2006-03-08 05:29:42 +00:00
58f182a159
Node delays can be more general expressions in structural contexts.
2006-01-02 05:33:19 +00:00
35951510c5
Put vec8 and vec4 nets into seperate net classes.
2005-11-25 17:55:26 +00:00
9c8c541f5d
MUX nodes get inputs from nets, not from net inputs,
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Detect and draw alias nodes to reduce net size and
handle force confusion.
2005-10-12 17:26:17 +00:00
c75f0a930e
Remove the $ from signal labels. They do not help.
2005-10-11 18:54:10 +00:00
bb3f3c1f46
Remove obsolete vvp_memory_label function.
2005-10-11 18:30:50 +00:00
fb22bcc96b
Remove dead dram_input_from_net and lpm_inputs_a_b
2005-10-10 04:16:13 +00:00
bf8b085159
Clean up compiler warnings.
2005-09-20 18:34:01 +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
4cc421b3b7
Make functors know their own width.
2005-06-17 03:46:52 +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
65c7ec00e7
Rework NetRamDq and IVL_LPM_RAM nodes.
2005-04-06 05:29:08 +00:00
d62661257a
Generate the right coes for unconnected UDP port.
2005-04-04 05:29:53 +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
1c5b4881d7
Handle case inequality in netlists.
2005-03-09 05:52:03 +00:00
53af2949b4
Generate code for new form of memory ports.
2005-03-09 04:53:40 +00:00
1d7235b4f1
Replace supply nets with wires connected to pullup/down supply devices.
2005-02-13 01:15:07 +00:00
d4eb4d38bc
Implement a-b muxes as vector devices
2005-02-12 22:54:29 +00:00
eca4f4fa97
Draw C4 and C8 constants to account for strength.
2005-02-12 06:25:15 +00:00
1979fca239
Get the C4 width right for undriven nexa.
2005-02-10 04:55:45 +00:00
ee5bb5fcaf
Add the NetRepeat node, and code generator support.
2005-02-08 00:12:36 +00:00
e74127e1fc
Support .concat with arbitrary input counts.
2005-02-04 05:13:57 +00:00
97f83ffbe3
laborate reduction gates into LPM_RED_ nodes.
2005-02-03 04:56:20 +00:00
a4710f375e
LPM_CMP_NE/EQ are vectored devices.
2005-01-22 16:22:13 +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
fcaaec0464
More robust input code generation for LPM_ADD.
2005-01-12 05:31:50 +00:00
8c18c9152d
More complete drawing of concat inputs.
2005-01-12 03:16:35 +00:00
399dfe5c44
Handle concatenations with up to 16 inputs.
2005-01-10 01:42:59 +00:00
9e94afe399
Use PartSelect/PV and VP to handle part selects through ports.
2005-01-09 20:16:00 +00:00
83423c978b
Generate code for the .concat functors, from NetConcat objects.
...
Generate C<> constants of correct widths for functor arguments.
2004-12-29 23:52:09 +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
965d928430
More carefull about eliding bufzs that carry strength.
2004-09-25 21:04:25 +00:00
5e627c9adc
Compile cleanup of C code.
2004-09-10 23:13:05 +00:00
3dbc07f34d
Implement signed divide and signed right shift in nets.
2004-06-30 02:16:26 +00:00
b043445c80
Generate .cmp/eq nodes instead of sea of gates.
2004-06-16 23:33:42 +00:00
59ac435c71
Fix various unsigned compare warnings.
2003-12-19 01:27:10 +00:00
a461a76bd5
Emit .event inputs before the .event statement.
2003-10-09 23:45:03 +00:00
64d795c53a
Preserve variable ranges all the way to the vpi.
2003-08-22 23:14:26 +00:00
d653a7e88d
Add support for triand and trior.
2003-07-30 01:13:28 +00:00
8cfef65bd8
Implement acc_fetch_defname and its infrastructure in vvp.
2003-05-29 02:21:45 +00:00
3bd08e6212
Allow primitives to hvae unconnected input ports.
2003-05-13 01:56:15 +00:00
5d1d99a89f
Handle signed magnitude compare all the
...
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
f354c43941
Use hash code for scope labels.
2003-03-25 02:15:48 +00:00
8188e8f3bf
Use %p name for all LPM functors.
2003-03-13 06:07:11 +00:00
1222153cdf
Keep parameter constants for the ivl_target API.
2003-03-10 23:40:53 +00:00
0bf901e9bb
Use number for event labels.
2003-03-06 01:17:46 +00:00
17ec5d7891
Use numbers for functor labels.
2003-03-06 00:27:09 +00:00
76a77fdd36
Printed nexus names need not use ivl_nexus_name.
2003-03-03 23:05:49 +00:00
679c9c5bfe
Only give scope basename to .scope directives.
2003-03-03 01:48:41 +00:00
e6eded243e
Eliminate use of ivl_lpm_name function.
2003-02-25 03:40:45 +00:00
46253ed873
Rework expression parsing and elaboration to
...
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
c2070777b2
The $time system task returns the integer time
...
scaled to the local units. Change the internal
implementation of vpiSystemTime the $time functions
to properly account for this. Also add $simtime
to get the simulation time.
2002-12-21 00:55:57 +00:00
2fafe6866f
Better handling of select width of shifters.
2002-11-21 18:08:09 +00:00
32f1ca6f8b
draw lpm ff with aset_expr taken into account.
2002-10-23 04:39:35 +00:00
166621bcb3
Generate vvp code for asynch set/reset of NetFF.
2002-09-26 03:18:04 +00:00
5d6567cb02
Generate vvp code for structural flip-flops.
2002-09-17 05:37:45 +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
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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
41f7ecacfc
Eliminate use of ivl_signal_name for signal labels.
2002-08-03 22:30:48 +00:00
15becdaee4
Need driver for sure in assign feedback and other cases.
2002-07-18 02:06:37 +00:00
472f98affe
Generate code for wide muxes.
2002-07-08 04:04:07 +00:00
301040a67a
Avoid emitting to vvp local net symbols.
2002-07-05 21:26:17 +00:00
5eca5d9948
Carry integerness throughout the compilation.
2002-06-21 04:59:35 +00:00
4a7e14786c
Tail size was wrong.
2002-04-23 05:18:05 +00:00
1ddb736f4c
Handle bitsel muxes of odd shaped outputs.
2002-04-23 05:06:31 +00:00
9ef49379f4
Add support for non-constant bit select.
2002-04-23 03:53:59 +00:00
96213fe0ac
Keep delays applied to BUFZ devices.
2002-04-22 03:15:25 +00:00
7349a6beaf
Generate port information in the .ufunc statement.
2002-03-18 00:18:50 +00:00
Cary R
Stephen Williams
steve