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40 Commits

Author SHA1 Message Date
Krystine Sherwin 2f8cf84882
alumacc: cmp_mergeable function 
Replace all the existing mergeable checks with a call to a single function.
Fix remaining discrepencies (undersized output and mismatched signed inputs).
 2026-07-31 16:59:57 +12:00
Krystine Sherwin bb49b0be32
alumacc: Fix get_lt for oversized output 
Current behavior uses the output width to determine the MSb(s), however this is not correct if the output is larger than the inputs (which doesn't happen when creating an `$alu` for a compare op, but does when folding a compare op into an arithmetic `$alu`).

Co-authored-by: Lofty <dan.ravensloft@gmail.com>
 2026-07-31 16:59:56 +12:00
Codexplorer e41b969da2 Refactored uses of log_id() 2026-05-08 20:59:24 -07:00
Miodrag Milanović 4cdaac003f
Merge pull request #3991 from adrianparvino/alumacc-sign 
alumacc: merge independent of sign
 2025-10-08 13:02:10 +02:00
Martin Povišer 91cd382f8b macc: Rename 'ports' to 'terms' throughout codebase 2025-03-18 13:25:10 +01:00
Martin Povišer b5752dfe16 alumacc: Fix missing signedness check 2025-02-04 13:05:53 +01:00
Adrian Parvin Ouano 23b3638c1e alumacc: alternative cmp unification implementation 2025-02-04 11:52:37 +01:00
Martin Povišer 652a1b9806 macc: Stop using the B port 
The B port is for single-bit summands. These can just as well be
represented as an additional summand on the A port (which supports
summands of arbitrary width). An upcoming `$macc_v2` cell won't be
special-casing single-bit summands in any way.

In preparation, make the following changes:

 * remove the `bit_ports` field from the `Macc` helper (instead add any
   single-bit summands to `ports` next to other summands)

 * leave `B` empty on cells emitted from `Macc::to_cell`
 2025-01-08 13:03:35 +01:00
Emil J. Tywoniak d071489ab1 hashlib: redo interface for flexibility 2024-12-18 14:49:25 +01:00
Adrian Parvin Ouano 535ecf84ac alumacc: merge independent of sign 2023-10-08 01:23:14 +08:00
Adrian Parvin Ouano 74d38db3b5 alumacc: merge eq independent of sign 2023-10-08 01:23:14 +08:00
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
whitequark 7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Eddie Hung 956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
Eddie Hung 9a73adde50 Explicitly order function arguments 2019-09-13 16:18:05 -07:00
Eddie Hung 52355f5185 Use more ID::{A,B,Y,blackbox,whitebox} 2019-08-15 14:50:10 -07:00
Eddie Hung 02dead2e60 ID(\\.*) -> ID(.*) 2019-08-15 10:25:54 -07:00
Eddie Hung 78ba8b8574 Transform all "\\*" identifiers into ID() 2019-08-15 10:19:29 -07:00
Eddie Hung 9f98241010 Transform "$.*" to ID("$.*") in passes/techmap 2019-08-15 10:05:08 -07:00
Eddie Hung 7164996921 RTLIL::S{0,1} -> State::S{0,1} 2019-08-07 11:12:38 -07:00
Henner Zeller 3aa4484a3c Consistent use of 'override' for virtual methods in derived classes. 
o Not all derived methods were marked 'override', but it is a great
  feature of C++11 that we should make use of.
o While at it: touched header files got a -*- c++ -*- for emacs to
  provide support for that language.
o use YS_OVERRIDE for all override keywords (though we should probably
  use the plain keyword going forward now that C++11 is established)
 2018-07-20 23:51:06 -07:00
Clifford Wolf 8a66bd30c6 Update more stuff to use get_src_attribute() and set_src_attribute() 2017-09-01 12:26:55 +02:00
Jason Lowdermilk 8dc6083de7 updated to use get_src_attribute() and set_src_attribute(). 2017-08-31 14:51:56 -06:00
Jason Lowdermilk 32c0f1193e Add support for source line tracking through synthesis phase 2017-08-29 14:46:35 -06:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf 207736b4ee Import more std:: stuff into Yosys namespace 2015-10-25 19:30:49 +01:00
Clifford Wolf 92dce21f6e Using dict<> and pool<> in alumacc pass 2015-08-31 16:26:01 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf edb3c9d0c4 Renamed extend() to extend_xx(), changed most users to extend_u0() 2014-12-24 09:51:17 +01:00
Clifford Wolf 97487fee32 Added skeleton dff2dffe pass 2014-12-08 14:10:52 +01:00
Clifford Wolf 4569a747f8 Renamed SIZE() to GetSize() because of name collision on Win32 2014-10-10 17:07:24 +02:00
Clifford Wolf f9a307a50b namespace Yosys 2014-09-27 16:17:53 +02:00
Clifford Wolf b86410b2ab More aggressive $macc merging in alumacc 2014-09-15 12:42:11 +02:00
Clifford Wolf b470c480e9 Added the obvious optimizations to alumacc $macc generator 2014-09-15 12:22:03 +02:00
Clifford Wolf 014bb34e0e Various fixes/cleanups in alumacc and maccmap 2014-09-14 14:49:53 +02:00
Clifford Wolf b34ca15185 alumacc fix for $pos cells 2014-09-14 14:00:14 +02:00
Clifford Wolf 0df1d9ad72 Extract $alu cells in alumacc 2014-09-14 13:23:44 +02:00
Clifford Wolf 7b16c63101 Merge $macc cells in alumacc pass 2014-09-14 11:21:37 +02:00
Clifford Wolf 0b72f0acb1 Basic $macc extract in alumacc 2014-09-14 10:45:28 +02:00
Clifford Wolf ff157fb74f alumacc skeleton 2014-09-14 10:02:00 +02:00