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108 Commits

Author SHA1 Message Date
Krystine Sherwin 1de5d98ae2
Reduce comparisons of size_t and int 
`Const::size()` returns int, so change iterators that use it to `auto` instead of `size_t`.
For cases where size is being explicitly cast to `int`, use the wrapper that we already have instead: `Yosys::GetSize()`.
 2024-11-29 12:53:29 +13:00
Emil J. Tywoniak 785bd44da7 rtlil: represent Const strings as std::string 2024-10-14 06:28:12 +02:00
N. Engelhardt 419f91a2b9 add option to fsm_detect to ignore self-resetting 2023-01-30 16:12:53 +01:00
N. Engelhardt b64141f48b mention prerequisites in fsm_detect and fsm help 2022-11-21 16:07:23 +01:00
Jannis Harder c0063288d6 Add the $anyinit cell and the formalff pass 
These can be used to protect undefined flip-flop initialization values
from optimizations that are not sound for formal verification and can
help mapping all solver-provided values in witness traces for flows that
use different backends simultaneously.
 2022-08-16 13:37:30 +02:00
Henner Zeller 9d41aa8e28 Avoid unnecessary copy of a potential large constant value. 
The local variable is used just to iterate through the values, so
a const reference is all we need.
 2022-06-09 16:05:51 +01:00
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
Marcelina Kościelnicka 28b9f49c94 fsm_extract: avoid calling log_signal to determine wire name 
log_signal can result in a string with spaces (when bit selection is
involved), which breaks the rule of IdString not containing whitespace.
Instead, remove the sigspec from the name entirely — given that the
resulting wire will have no users, it will be removed later anyway,
so its name doesn't really matter.

Fixes #2118
 2020-06-08 03:49:58 +02:00
Eddie Hung 956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
Eddie Hung fdafb74eb7 kernel: use more ID::* 2020-04-02 07:14:08 -07:00
Marcin Kościelnicki e91368a5f4 fsm_extract: Initialize celltypes with full design. 
Fixes #1781.
 2020-03-19 18:51:21 +01:00
Marcin Kościelnicki a5d2358a60 fsm_detect: Add a cache to avoid excessive CPU usage for big mux networks. 
Fixes #1634.
 2020-01-14 22:49:20 +01:00
Clifford Wolf 4be5a0fd7c Update fsm_detect bugfix 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-12 17:31:30 +01:00
Clifford Wolf 16df8f5a32 Bugfix in fsm_detect 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-12 14:26:02 +01:00
Eddie Hung 7164996921 RTLIL::S{0,1} -> State::S{0,1} 2019-08-07 11:12:38 -07:00
Eddie Hung 046e1a5214 Use State::S{0,1} 2019-08-06 16:22:47 -07:00
Eddie Hung 3486235338 Make liberal use of IdString.in() 2019-08-06 16:18:18 -07:00
David Shah a4515712cb fsm_opt: Fix runtime error for FSMs without a reset state 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-07 10:35:36 +00:00
whitequark efa278e232 Fix typographical and grammatical errors and inconsistencies. 
The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.

    DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
    DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
    codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint

More hits were found by looking through comments and strings manually.
 2019-01-02 13:12:17 +00:00
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 df3e6e1ec9 Remove some dead code from fsm_map 2017-08-21 15:02:16 +02:00
Larry Doolittle 2021ddecb3 Squelch trailing whitespace 2017-04-12 15:11:09 +02:00
Clifford Wolf 45e10c1c89 Be more conservative with merging large cells into FSMs 2017-01-26 09:19:28 +01:00
Clifford Wolf 49b8160488 Add warnings for quickly growing FSM table size in fsm_expand 2017-01-26 09:05:59 +01:00
Clifford Wolf b63cace90f Added support for fsm_encoding="user" 2016-11-02 13:15:49 +01:00
Clifford Wolf 0c8e973d32 Added "fsm_expand -full" 2016-11-02 09:31:39 +01:00
Clifford Wolf d9d38eeedb Bugfix in fsm_map for FSMs without reset state 2016-10-25 23:21:37 +02:00
Clifford Wolf e92998a79c Minor bugfix in FSM reset state detection 2016-07-12 09:46:15 +02:00
Clifford Wolf b5a9fba0db Further improved fsm_detect output, attempt to detect self-resetting circuits 2016-07-09 14:02:49 +02:00
Clifford Wolf d63ffabacb Added printing of some warning messages to fsm_detect 2016-07-09 13:23:06 +02:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf 0d7fd2585e Added "int ceil_log2(int)" function 2016-02-13 16:52:16 +01:00
Clifford Wolf 207736b4ee Import more std:: stuff into Yosys namespace 2015-10-25 19:30:49 +01:00
Clifford Wolf 7f110e7018 renamed SigSpec::to_single_sigbit() to SigSpec::as_bit(), added is_bit() 2015-10-24 22:56:40 +02:00
Clifford Wolf b66bf8bed1 Do not detect fsm state registers with init attribute 2015-09-21 11:54:00 +02:00
Clifford Wolf b7535a6c75 Added $logic_not handling to fsm_detect 2015-09-18 10:46:50 +02:00
Clifford Wolf 246e362717 Bugfix in fsm_detect for complex muxtrees 2015-08-18 14:17:50 +02:00
Clifford Wolf 84bf862f7c Spell check (by Larry Doolittle) 2015-08-14 10:56:05 +02:00
Clifford Wolf 766dd51447 Bugfix in fsm_extract 2015-07-03 18:42:36 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf f483dce7c2 Added $eq/$neq -> $logic_not/$reduce_bool optimization 2015-04-29 07:28:15 +02:00
Clifford Wolf a038787c9b Added onehot attribute 2015-02-04 18:52:54 +01:00
Clifford Wolf bedd46338f Added "fsm -encfile" 2015-01-30 22:46:53 +01:00
Clifford Wolf a6c96b986b Added Yosys::{dict,nodict,vector} container types 2014-12-26 10:53:21 +01:00
Clifford Wolf edb3c9d0c4 Renamed extend() to extend_xx(), changed most users to extend_u0() 2014-12-24 09:51:17 +01:00
Clifford Wolf fe829bdbdc Added log_warning() API 2014-11-09 10:44:23 +01:00
William Speirs e5b8390f44 Changed from "and" to "&&" 2014-10-15 00:59:22 +02:00
Clifford Wolf 35fbc0b35f Do not the 'z' modifier in format string (another win32 fix) 2014-10-11 11:42:08 +02:00
Clifford Wolf 4569a747f8 Renamed SIZE() to GetSize() because of name collision on Win32 2014-10-10 17:07:24 +02:00