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3725 Commits

Author SHA1 Message Date
Miodrag Milanovic 94505395a9 Refactor sim output writers 2022-02-28 18:22:39 +01:00
Miodrag Milanovic dfd4c81eac Quick fix 2022-02-28 11:40:06 +01:00
Claire Xenia Wolf 56b968f61c Add writing of aiw files to "sim" command 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-28 10:50:08 +01:00
Claire Xenia Wolf 1fd3a642c9 Hotfix in AIGER witness reader state machine 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-28 10:41:44 +01:00
Miodrag Milanovic 8be09b5b24 VCD reader support by using external tool 2022-02-28 09:09:07 +01:00
Miodrag Milanovic 9571acc0bf Support extended aiw format 2022-02-27 16:37:40 +01:00
Miodrag Milanovic fca168797e Fix for last clock edge data 2022-02-25 16:15:32 +01:00
Claire Xenia Wolf ca261d3c28 Experimental sim changes 2022-02-25 16:02:06 +01:00
Anton Blanchard 89300b2dca abc: Fix {I} and {P} substitution 
We were searching for {D} after the first match of {I} or {P}.
 2022-02-23 18:54:28 +11:00
Claire Xen a41c1df76f
Merge pull request #3211 from YosysHQ/micko/witness 
Add support for AIGER witness files in "sim" command
 2022-02-22 16:22:06 +01:00
Miodrag Milanovic fd3f08753a Fix handling of ce_over_srst 2022-02-21 16:36:12 +01:00
Claire Xenia Wolf 1aa9ad25d0 Fix cycle 0 in aiger witness co-simulation 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-18 16:27:41 +01:00
Miodrag Milanovic 41754b4207 Added AIGER witness file co simulation 2022-02-18 15:04:02 +01:00
Miodrag Milanovic 13a5c28459 simplify logic of handling flip-flops and latches 2022-02-18 09:17:36 +01:00
Miodrag Milanovic 61752b255f Review cleanup 2022-02-17 17:18:36 +01:00
Miodrag Milanovic fb22d7cdc4 Add support for various ff/latch cells simulation 2022-02-16 13:27:59 +01:00
Claire Xen 49545c73f7
Merge branch 'master' into clk2ff-better-names 2022-02-11 16:03:12 +01:00
Claire Xen e016518866
Merge pull request #2019 from boqwxp/glift 
Add `glift` command for creating gate-level information flow tracking models and optimization problems
 2022-02-11 15:51:24 +01:00
bfg86 7ac98d1c87 Add -suffix option to rename -wire. 
See #3195
 2022-02-11 00:05:13 +01:00
Lofty 5ac32ea68c abc9: add flow3mfs script 2022-02-10 18:28:35 +00:00
Miodrag Milanović d7f7227ce8
Merge pull request #3185 from YosysHQ/micko/co_sim 
Add co-simulation in sim pass
 2022-02-07 16:36:43 +01:00
Miodrag Milanovic c0a156bcb4 Error detection for co-simulation 2022-02-04 11:11:36 +01:00
Miodrag Milanovic 6db23de7b1 bug fix and cleanups 2022-02-04 10:01:06 +01:00
YRabbit f5609d52c4 Correct a typo in the manual 
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
 2022-02-02 21:14:38 +10:00
Miodrag Milanovic 990aee5531 respect hide_internal flag 2022-02-02 10:15:22 +01:00
Miodrag Milanovic 169ffcd2fb unify cycles counting and cleanup 2022-02-02 10:08:23 +01:00
Miodrag Milanovic 820b2fdd65 added stimulus mode and param check 2022-02-02 09:37:32 +01:00
Scott Thibault 0a6e2bd5d5 Update comment 2022-02-02 03:21:09 +01:00
Scott Thibault e04ac4e9e9 Fix unextend method for signed constants 2022-02-02 03:21:09 +01:00
Miodrag Milanovic 8ba2000a50 error when no signal found 2022-01-31 17:41:50 +01:00
Miodrag Milanovic 1b5ff92e62 Cleanup 2022-01-31 13:45:28 +01:00
Miodrag Milanovic eabd0ff115 Compare bits when not all are defined 2022-01-31 13:41:02 +01:00
Miodrag Milanovic 26de52fa09 Cleanup 2022-01-31 12:00:15 +01:00
Miodrag Milanovic 6513300db7 message update 2022-01-31 11:41:52 +01:00
Miodrag Milanovic 543feb75cb Display simulation time data 2022-01-31 10:52:47 +01:00
Miodrag Milanovic a6959d30df Use edges when explicit 2022-01-31 09:38:25 +01:00
Miodrag Milanovic cbadfa0268 Updating initial state and checks 2022-01-31 09:19:34 +01:00
Miodrag Milanovic 190e44f0da Fix scope 2022-01-31 08:56:29 +01:00
Marcelina Kościelnicka 07a657fb0c opt_reduce: Add $bmux and $demux optimization patterns. 2022-01-30 03:37:52 +01:00
Marcelina Kościelnicka 93508d58da Add $bmux and $demux cells. 2022-01-28 23:34:41 +01:00
Miodrag Milanovic f04d1398e5 check if stop before start 2022-01-28 19:41:43 +01:00
Miodrag Milanovic ecbba625c4 set initial state, only flip-flops 2022-01-28 15:59:13 +01:00
Miodrag Milanovic cb12b7c4d8 ignore not found private signals 2022-01-28 14:20:16 +01:00
Miodrag Milanovic 81b76155d6 recursive check 2022-01-28 13:24:38 +01:00
Miodrag Milanovic 4f75a2ca1b Do actual compare 2022-01-28 12:50:41 +01:00
Miodrag Milanovic 3e35de2be1 Add more options and time handling 2022-01-28 10:18:02 +01:00
Marcelina Kościelnicka db33b1e535 opt_dff: Don't mutate muxes while ModWalker is active. 2022-01-28 08:55:56 +01:00
Marcelina Kościelnicka 1759c80a3f memory_bram: Make use of new mem emulation functions to map more RAMs. 2022-01-27 19:31:27 +01:00
Miodrag Milanovic 40018e191b Display values of outputs 2022-01-26 16:52:36 +01:00
Miodrag Milanovic be7be63fec Check if stimulated 2022-01-26 15:51:43 +01:00
Miodrag Milanovic 9a8939f0a4 Read fst and use data to set inputs 2022-01-26 15:50:38 +01:00
Miodrag Milanovic ccfc00705a Add ability to write to FST file 2022-01-26 09:26:19 +01:00
Austin Seipp b022fe61a7 opt_dff: fix sequence point copy paste bug 
Newer GCCs emit the following warning for opt_dff:

    passes/opt/opt_dff.cc:560:17: warning: operation on ‘ff.Yosys::FfData::has_clk’ may be undefined [-Wsequence-point]
      560 |      ff.has_clk = ff.has_ce = ff.has_clk = false;
          |      ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Which is correct: the order of whether the read or write of has_clk
occurs first is undefined since there is no sequence point between them.

This is almost certainly just a typo/copy paste error and objectively
wrong, so just fix it.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
 2022-01-04 18:18:08 +01:00
Marcelina Kościelnicka f84c9d8e17 memory_share: Fix SAT-based sharing for wide ports. 
Fixes #3117.
 2021-12-20 18:40:14 +01:00
Catherine 4f1d62d9b2 bugpoint: avoid infinite loop between -connections and -wires. 
Fixes #3113.
 2021-12-15 08:17:02 +00:00
Marcelina Kościelnicka 0aad88a2fb Add clean_zerowidth pass, use it for Verilog output. 
This should remove instances of zero-width sigspecs in the netlist,
avoiding problems in the Verilog backend with emitting them.

See #3103.
 2021-12-12 19:56:50 +01:00
Marcelina Kościelnicka 1184a7f3b4 opt_mem_priority: Fix non-ascii char in help message. 
This is a fixed version of #3072.
 2021-12-09 00:56:14 +01:00
Lofty 77327b2544 sta: very crude static timing analysis pass 
Co-authored-by: Eddie Hung <eddie@fpgeh.com>
 2021-11-25 17:20:27 +01:00
Marcelina Kościelnicka 107aad2cd2 show: Fix wire bit indexing. 
Fixes #3078.
 2021-11-12 15:09:58 +01:00
Claire Xen 4699ddcc1b
Merge pull request #3077 from YosysHQ/claire/genlib 
Add genlib support to ABC command
 2021-11-10 20:02:34 +01:00
Claire Xen c77d5a2aac
Spelling fix in abc.cc 2021-11-10 16:47:54 +01:00
Claire Xenia Wolf 093e287a1e Add genlib support to ABC command 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-11-10 16:40:54 +01:00
Marcelina Kościelnicka 506acd52de iopadmap: Fix ebmarassing typo 2021-11-10 14:56:03 +01:00
Marcelina Kościelnicka 15b0d717ed iopadmap: Add native support for negative-polarity output enable. 2021-11-09 15:40:16 +01:00
Pepijn de Vos 0c7461fe5e
gowin: widelut support (#3042) 2021-11-06 16:09:30 +01:00
Miodrag Milanovic d5de2a0cdb Make it work on all 2021-11-05 10:51:58 +01:00
Miodrag Milanovic cbb6887ac8 Correct way of setting maybe_unsused on labels 2021-11-05 10:36:15 +01:00
Marcelina Kościelnicka f346868ccc flatten: Keep sigmap around between flatten_cell invocations. 
Fixes #3064.
 2021-11-02 13:18:15 +01:00
Marcelina Kościelnicka 8d881826eb proc_dff: Emit $aldff. 2021-10-27 14:14:24 +02:00
Marcelina Kościelnicka 0a0df8d38c dfflegalize: Refactor, add aldff support. 2021-10-27 14:14:01 +02:00
Zachary Snow e833c6a418 verilog: use derived module info to elaborate cell connections 
- Attempt to lookup a derived module if it potentially contains a port
  connection with elaboration ambiguities
- Mark the cell if module has not yet been derived
- This can be extended to implement automatic hierarchical port
  connections in a future change
 2021-10-25 18:25:50 -07:00
Rupert Swarbrick bd16d01c0e Split out logic for reprocessing an AstModule 
This will enable other features to use same core logic for replacing an
existing AstModule with a newly elaborated version.
 2021-10-25 18:25:50 -07:00
Marcelina Kościelnicka 5cebf6a8ef Change implicit conversions from bool to Sig* to explicit. 
Also fixes some completely broken code in extract_reduce.
 2021-10-21 20:20:31 +02:00
Marcelina Kościelnicka e64456f920 extract_reduce: Refactor and fix input signal construction. 
Fixes #3047.
 2021-10-21 04:10:01 +02:00
Paul Annesley 3efc14f5ad dfflegalize: remove redundant check for initialized dlatch 
This if condition is repeated verbatim, and I can't imagine a legitimate
way the inputs could change in between. I imagine it's a copy/paste
mistake.
 2021-10-17 22:10:37 +02:00
Marcelina Kościelnicka 4e70c30775 FfData: some refactoring. 
- FfData now keeps track of the module and underlying cell, if any (so
  calling emit on FfData created from a cell will replace the existing cell)
- FfData implementation is split off to its own .cc file for faster
  compilation
- the "flip FF data sense by inserting inverters in front and after"
  functionality that zinit uses is moved onto FfData class and beefed up
  to have dffsr support, to support more use cases
 2021-10-07 04:24:06 +02:00
Marcelina Kościelnicka e7d89e653c Hook up $aldff support in various passes. 2021-10-02 21:01:21 +02:00
Marcelina Kościelnicka ba0723cad7 zinit: Refactor to use FfData. 2021-10-02 20:19:48 +02:00
Marcelina Kościelnicka 63b9df8693 kernel/ff: Refactor FfData to enable FFs with async load. 
- *_en is split into *_ce (clock enable) and *_aload (async load aka
  latch gate enable), so both can be present at once
- has_d is removed
- has_gclk is added (to have a clear marker for $ff)
- d_is_const and val_d leftovers are removed
- async2sync, clk2fflogic, opt_dff are updated to operate correctly on
  FFs with async load
 2021-10-02 20:19:48 +02:00
Marcelina Kościelnicka f9aad606ca simplemap: refactor to use FfData. 2021-10-02 03:24:57 +02:00
Eddie Hung 96b6410dcb
abc9: make re-entrant (#2993) 
* Add testcase

* Cleanup some state at end of abc9

* Re-assign abc9_box_id from scratch

* Suppress delete unless prep_bypass did something
 2021-09-09 10:06:31 -07:00
Eddie Hung 65316ec926
abc9: holes module to instantiate cells with NEW_ID (#2992) 
* Add testcase

* holes module to instantiate cells with NEW_ID
 2021-09-09 10:06:20 -07:00
Eddie Hung f03e2c30aa
abc9: replace cell type/parameters if derived type already processed (#2991) 
* Add close bracket

* Add testcase

* Replace cell type/param if in unmap_design

* Improve abc9_box error message too

* Update comment as per review
 2021-09-09 10:05:55 -07:00
Marcelina Kościelnicka 9cbff3a4a9 opt_merge: Remove and reinsert init when connecting nets. 
Mutating the SigMap by adding a new connection will throw off FfInitVals
index.  Work around this by removing the relevant init values from index
whenever we connect nets, then re-add the new init value.

Should fix #2920.
 2021-08-22 18:34:11 +02:00
Marcelina Kościelnicka 62d41d4639 opt_clean: Make the init attribute follow the FF's Q. 
Previously, opt_clean would reconnect all ports (including FF Q ports)
to a "canonical" SigBit chosen by complex rules, but would leave the
init attribute on the old wire.  This change applies the same
canonicalization rules to the init attributes, ensuring that init moves
to wherever the Q port moved.

Part of another jab at #2920.
 2021-08-22 15:38:29 +02:00
Marcelina Kościelnicka faacc7ad89 proc_prune: Make assign removal and promotion per-bit, remember promoted bits. 
Fixes #2962.
 2021-08-14 15:26:11 +02:00
Marcelina Kościelnicka f791328506 Add opt_mem_widen pass. 
If all of us are wide, then none of us are!
 2021-08-14 01:06:23 +02:00
Marcelina Kościelnicka 1f74ec3535 memory_share: Add -nosat and -nowiden options. 
This unlocks wide port recognition by default.
 2021-08-14 00:09:04 +02:00
Marcelina Kościelnicka 9fdedf4d1c memory_dff: Recognize soft transparency logic. 2021-08-13 23:08:32 +02:00
Marcelina Kościelnicka 616ace2d92 Add new opt_mem_priority pass. 2021-08-13 11:58:52 +02:00
Miodrag Milanović 30927df881
Merge pull request #2932 from YosysHQ/mwk/logger-check-expected 
logger: Add -check-expected subcommand.
 2021-08-13 11:45:20 +02:00
Marcelina Kościelnicka d0d9aca2c3 memory_share: Pass addresses through sigmap_xmux everywhere. 
This fixes wide port recognition in some cases.
 2021-08-13 01:17:55 +02:00
Marcelina Kościelnicka c58ac63c97 logger: Add -check-expected subcommand. 
This allows us to have multiple "expect this warning" calls in a single
long script, covering only as many passes as necessary.
 2021-08-12 17:41:39 +02:00
Marcelina Kościelnicka 72d86c327e memory_dff: Recognize read ports with reset / initial value. 2021-08-11 14:17:48 +02:00
Marcelina Kościelnicka 24027b5446 proc_memwr: Use the v2 memwr cell. 2021-08-11 13:34:10 +02:00
Marcelina Kościelnicka fd79217763 Add v2 memory cells. 2021-08-11 13:34:10 +02:00
Marcelina Kościelnicka e6f3d1c225 kernel/mem: Introduce transparency masks. 2021-08-11 00:04:16 +02:00
Marcelina Kościelnicka d25b9088c8 Refactor common parts of SAT-using optimizations into a helper. 
This also aligns the functionality:

- in all cases, the onehot attribute is used to create appropriate
  constraints (previously, opt_dff didn't do it at all, and share
  created one-hot constraints based on $pmux presence alone, which
  is unsound)
- in all cases, shift and mul/div/pow cells are now skipped when
  importing the SAT problem (previously only memory_share did this)
  — this avoids creating clauses for hard cells that are unlikely
  to help with proving the UNSATness needed for optimization
 2021-08-09 16:54:35 +02:00
Marcelina Kościelnicka 98003430d6 opt_merge: Use FfInitVals. 
Partial #2920 fix.
 2021-08-08 01:19:22 +02:00
Marcelina Kościelnicka 63f9e0544f memory_share: Don't skip ports with EN wired to input for SAT sharing. 
Fixes #2912.
 2021-08-04 04:47:43 +02:00
Marcelina Kościelnicka 8733e1923a memory_bram: Move init data swizzling before other swizzling. 
Fixes #2907.
 2021-08-03 15:04:10 +02:00
Marcelina Kościelnicka 4451f7f5e9 memory_bram: Some refactoring 
This will make more sense when the new transparency masks land.

Fixes #2902.
 2021-08-01 16:51:24 +02:00
Zachary Snow c016f6a423 proc_rmdead: use explicit pattern set when there are no wildcards 
If width of a case expression was large, explicit patterns could cause
the existing logic to take an extremely long time, or exhaust the
maximum size of the underlying set. For cases where all of the patterns
are fully defined and there are no constants in the case expression,
this change uses a simple set to track which patterns have been seen.
 2021-07-29 20:55:59 -04:00
Marcelina Kościelnicka 54e75129e5 opt_lut: Allow more than one -dlogic per cell type. 
Fixes #2061.
 2021-07-29 17:30:07 +02:00
Marcelina Kościelnicka 19720b970d memory: Introduce $meminit_v2 cell, with EN input. 2021-07-28 23:18:38 +02:00
Marcelina Kościelnicka a0e912ba99 proc: Run opt_expr at the end 2021-07-27 20:44:45 +02:00
Marcelina Kościelnicka 436d42c00c opt_expr: Propagate constants to port connections. 
This adds one simple piece of functionality to opt_expr: when a cell
port is connected to a fully-constant signal (as determined by sigmap),
the port is reconnected directly to the constant value.  This is just
enough optimization to fix the "non-constant $meminit input" problem
without requiring a full opt_clean or a separate pass.
 2021-07-27 20:44:26 +02:00
Rupert Swarbrick 7a25246a7e Use new read_id_num helper function elsewhere in hierarchy.cc 2021-07-20 10:13:15 -04:00
Rupert Swarbrick 8fd6b45a3c Extract connection checking logic from expand_module in hierarchy.cc 
No functional change, but pulls more logic out of the expand_module
function.
 2021-07-20 10:13:15 -04:00
Rupert Swarbrick 7d50b83322 Extract missing module support in hierarchy.cc to a helper function 
I think the code is now a bit easier to follow (and has lost some
levels of indentation!).

The only non-trivial change is that I removed the check for
cell->type[0] != '$' when deciding whether to complain if we couldn't
find a module. This will always be true because of the early exit
earlier in the function.
 2021-07-14 22:54:50 -04:00
Rupert Swarbrick 88f20fa4dd Delete unused found_init variable 
Spotted during compilation:

    passes/proc/proc_init.cc: In function ‘void {anonymous}::proc_init(Yosys::RTLIL::Module*, Yosys::SigMap&, Yosys::RTLIL::Process*)’:
    passes/proc/proc_init.cc:31:7: warning: variable ‘found_init’ set but not used [-Wunused-but-set-variable]
 2021-07-14 10:19:07 +01:00
Marcelina Kościelnicka 009940f56c rtlil: Make Process handling more uniform with Cell and Wire. 
- add a backlink to module from Process
- make constructor and destructor protected, expose Module functions
  to add and remove processes
 2021-07-12 00:47:34 +02:00
Rupert Swarbrick e2c9580024 Move interface expansion in hierarchy.cc into a helper class 
There should be no functional change, but this splits up the control
flow across functions, using class fields to hold the state that's
being tracked. The result should be a bit easier to read.

This is part of work to add bind support, but I'm doing some
refactoring in the hierarchy pass to make the code a bit easier to
work with. The idea is that (eventually) the IFExpander object will
hold all the logic for expanding interfaces, and then other code can
do bind insertion.
 2021-06-16 21:48:18 -04:00
gatecat 6a6d049f1c opt_muxtree: Update port_off and port_idx even for constant bits 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-11 12:06:35 +01:00
Marcelina Kościelnicka 1667ad658b opt_expr: Fix mul/div/mod by POT patterns to support >= 32 bits. 
The previous code, in addition to being needlessly limitted to 32 bits
in the first place, also had UB for the 31th bit (doing 1 << 31).
 2021-06-09 19:53:44 +02:00
Marcelina Kościelnicka 12b3a9765d opt_expr: Optimize div/mod by const 1. 
Turns out the code for div by a power of 2 is already almost capable of
optimizing this to a shift-by-0 or and-with-0, which will be further
folded into nothingness; let's beef it up to handle div by 1 as well.

Fixes #2820.
 2021-06-09 17:42:30 +02:00
Claire Xen 55e8f5061a
Merge pull request #2817 from YosysHQ/claire/fixemails 
Fixing old e-mail addresses and deadnames
 2021-06-09 13:22:52 +02:00
Claire Xenia Wolf 588137cd08 Fix deadname SVN links 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-06-09 12:44:37 +02:00
Claire Xenia Wolf 0ada13cbe2 Use HTTPS for website links, gatecat email 
git ls-tree -r --name-only HEAD | xargs sed -i -rf ~/fixemails.sed

s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+(Shah|gatecat)\s+<(dave|david|gatecat)@(symbioticeda.com|yosyshq.com|ds0.me)>/gatecat <gatecat@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/|http://yosyshq.net/yosys/,https://yosyshq.net/yosys/,g;
 2021-06-09 12:16:56 +02:00
Zachary Snow d9f11bb7a6 autoname: simple perf optimizations 2021-06-08 15:02:42 -04:00
Claire Xenia Wolf 72787f52fc Fixing old e-mail addresses and deadnames 
s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
 2021-06-08 00:39:36 +02:00
Marcelina Kościelnicka 13b901bf1c memory_map: Improve start_offset handling. 
Fixes #2775.
 2021-05-31 17:45:21 +02:00
Marcelina Kościelnicka 82f5829aba memory_share: Add read port merging. 
This is mostly meant for wide port recognition, but may also happen to
merge some ports with compatible initial/reset values (eg. 0 vs x).
 2021-05-29 16:05:58 +02:00
Marcelina Kościelnicka 2d10caabbc memory_share: Improve sat-based port sharing. 2021-05-28 14:25:33 +02:00
Marcelina Kościelnicka cbf6b719fe Make a few passes auto-call Mem::narrow instead of rejecting wide ports. 
This essentially adds wide port support for free in passes that don't
have a usefully better way of handling wide ports than just breaking
them up to narrow ports, avoiding "please run memory_narrow" annoyance.
 2021-05-28 00:40:56 +02:00
Marcelina Kościelnicka 1eae6025e7 memory_share: Improve same-address merging, recognize wide write ports. 2021-05-27 15:53:12 +02:00
Marcelina Kościelnicka 83a218141c kernel/mem: Add sub_addr helpers. 2021-05-26 03:34:02 +02:00
Marcelina Kościelnicka d99fce3bc7 mem/extract_rdff: Fix "no FF made" edge case. 
When converting a sync transparent read port with const address to async
read port, nothing at all needs to be done other than clk_enable change,
and thus we have no FF cell to return.  Handle this case correctly in
the helper and in its users.
 2021-05-25 23:42:31 +02:00
Marcelina Kościelnicka 18806f1ef6 memory_bram: Reuse extract_rdff helper for make_outreg. 
Also properly skip read ports with init value or reset when not making
use of make_outreg.  Proper support for matching those will land later.
 2021-05-25 22:42:03 +02:00
Marcelina Kościelnicka e6b078d156 opt_mem: Add reset/init value support. 2021-05-25 20:06:00 +02:00
Marcelina Kościelnicka 96c7d60304 memory_bram: Respect write port priority. 2021-05-25 16:28:33 +02:00
Marcelina Kościelnicka 5628f5a88f opt_mem_feedback: Respect write port priority. 2021-05-25 15:59:41 +02:00
Marcelina Kościelnicka e0736c1622 Add memory_narrow pass. 2021-05-25 03:04:13 +02:00
Marcelina Kościelnicka 47f958ce45 memory_share: Add wide port support. 2021-05-25 02:57:32 +02:00
Marcelina Kościelnicka 9d5d5a48b1 opt_mem_feedback: Add wide port support. 2021-05-25 02:57:32 +02:00
Marcelina Kościelnicka c1a4730739 memory_map: Add wide port support. 2021-05-25 02:57:32 +02:00
Marcelina Kościelnicka 1c903d3e47 sim: Add wide port support. 2021-05-25 02:57:32 +02:00
Marcelina Kościelnicka 69bf5c81c7 Reject wide ports in some passes that will never support them. 2021-05-25 02:07:25 +02:00
Marcelina Kościelnicka 835688bf80 opt_mem_feedback: Rewrite feedback path finding logic. 
Fixes #2766.
 2021-05-24 23:20:30 +02:00
Marcelina Kościelnicka b706adb809 opt_mem_feedback: Convert to Mem helpers. 2021-05-24 23:20:30 +02:00
Marcelina Kościelnicka df2b79ca76 memory_share: Use Mem helpers. 2021-05-23 23:16:12 +02:00
Marcelina Kościelnicka afd5366fc2 extract_rdff: Add initvals parameter. 
This is not used yet, but will be needed when read port reset/initial
value support lands.
 2021-05-23 22:05:26 +02:00
Marcelina Kościelnicka d905990d01 memory_share: Split off feedback path finding as a separate pass. 
memory_share is actually three passes in a trenchcoat.  Split off the
one that has the least in common with the other two as a separate pass.
 2021-05-23 18:30:39 +02:00
Marcelina Kościelnicka 1eea06bcc0 Add new helper class for merging FFs into cells, use for memory_dff. 
Fixes #1854.
 2021-05-23 14:46:59 +02:00
Marcelina Kościelnicka a23d9409e7 opt_mem: Remove write ports with const-0 EN. 
Fixes #2765.
 2021-05-23 14:30:56 +02:00
Marcelina Kościelnicka 039f4f48d5 memory_memx: Use Mem helper. 2021-05-22 22:31:07 +02:00
Marcelina Kościelnicka c4cc888b2c kernel/rtlil: Extract some helpers for checking memory cell types. 
There will soon be more (versioned) memory cells, so handle passes that
only care if a cell is memory-related by a simple helper call instead of
a hardcoded list.
 2021-05-22 21:43:00 +02:00
Marcelina Kościelnicka 8c734e07b8 memory_dff: Use Mem helper. 2021-05-21 02:26:27 +02:00
Marcelina Kościelnicka a6081b46ce connect: Add -assert option, fix non-working sigmap. 
Should be useful for writing tests.
 2021-05-08 15:49:41 +02:00
Marcelina Kościelnicka 5c1e6a0e20 opt_dff: Fix NOT gates wired in reverse. 2021-05-04 21:03:40 +02:00