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26 Commits

Author SHA1 Message Date
Matt Johnston 5dfa30320a
Merge 2a3804139f into 6b78731792 2026-04-27 16:08:06 +00:00
Marcelina Kościelnicka 71dfbf33b2 Add -no-rw-check option to memory_dff + memory + synth_{ice40,ecp5,gowin}. 2022-06-02 23:16:12 +02:00
Marcelina Kościelnicka 606f1637ae Add memory_bmux2rom pass. 2022-05-18 22:48:55 +02:00
Matt Johnston 2a3804139f opt_mem_merge: Combine memories for byte enable. 
The RAMs inferred by GHDL are split into separate instances
for byte enables. This pass recombines memories that have the same
input address (and matching characteristics) allowing a single
BRAM to be used with byte enables.

Work in progress, needs more checks for memory compatibility
Briefly tested to work for microwatt
 2022-01-14 14:40:04 +08:00
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 616ace2d92 Add new opt_mem_priority pass. 2021-08-13 11:58:52 +02:00
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 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 a3528649c8 memory_dff: Remove now-useless write port handling. 2021-03-08 20:16:29 +01:00
whitequark 7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Clifford Wolf 03fb92ed6f Add "opt_mem" pass 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-22 17:45:22 +01:00
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 15ef608453 Added memory_memx pass, "memory -memx", and "prep -memx" 2016-08-19 19:48:26 +02:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf 66910e15b2 Modernized memory_dff (and fixed a bug) 2015-06-14 16:15:51 +02:00
Clifford Wolf f6eca509bb Added "memory -nordff" 2015-06-14 15:47:11 +02:00
Clifford Wolf 45918b8315 Added "memory -bram" 2015-01-03 17:40:20 +01:00
Clifford Wolf f9a307a50b namespace Yosys 2014-09-27 16:17:53 +02:00
Clifford Wolf e441f07d89 Added translation from read-feedback to en-signals in memory_share 2014-07-18 16:46:40 +02:00
Clifford Wolf ab4b26679f Added memory_share 2014-07-18 13:16:56 +02:00
Clifford Wolf 888c43210b Fixed help message typo (memory pass) 2013-10-30 00:47:31 +01:00
Clifford Wolf 8d37d1e08b Added -nomap option to memory pass 2013-03-21 09:11:06 +01:00
Clifford Wolf f3a849512f Added help messages to memory_* passes 2013-03-01 10:17:35 +01:00
Clifford Wolf 7764d0ba1d initial import 2013-01-05 11:13:26 +01:00