X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=README.md;h=cc5c806fb023dd6a96f3af3b929a06b4a21cf4f5;hb=493b5e03e7ce9496980c9235bb2979bd259995a6;hp=770c624591bd045d582f12ed5ca2819c79bfdddc;hpb=369dcb4e824ea18957b4ad989f50f757674799c3;p=yosys.git diff --git a/README.md b/README.md index 770c62459..cc5c806fb 100644 --- a/README.md +++ b/README.md @@ -1,7 +1,7 @@ ``` yosys -- Yosys Open SYnthesis Suite -Copyright (C) 2012 - 2020 Claire Wolf +Copyright (C) 2012 - 2020 Claire Xenia Wolf Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above @@ -38,13 +38,13 @@ Web Site and Other Resources ============================ More information and documentation can be found on the Yosys web site: -- http://www.clifford.at/yosys/ +- https://yosyshq.net/yosys/ The "Documentation" page on the web site contains links to more resources, including a manual that even describes some of the Yosys internals: -- http://www.clifford.at/yosys/documentation.html +- https://yosyshq.net/yosys/documentation.html -The file `CodingReadme` in this directory contains additional information +The directory `guidelines` contains additional information for people interested in using the Yosys C++ APIs. Users interested in formal verification might want to use the formal verification @@ -92,7 +92,7 @@ For Cygwin use the following command to install all prerequisites, or select the There are also pre-compiled Yosys binary packages for Ubuntu and Win32 as well as a source distribution for Visual Studio. Visit the Yosys download page for -more information: http://www.clifford.at/yosys/download.html +more information: https://yosyshq.net/yosys/download.html To configure the build system to use a specific compiler, use one of @@ -309,7 +309,9 @@ Verilog Attributes and non-standard features that have ports with a width that depends on a parameter. - The ``hdlname`` attribute is used by some passes to document the original - (HDL) name of a module when renaming a module. + (HDL) name of a module when renaming a module. It should contain a single + name, or, when describing a hierarchical name in a flattened design, multiple + names separated by a single space character. - The ``keep`` attribute on cells and wires is used to mark objects that should never be removed by the optimizer. This is used for example for cells that @@ -487,6 +489,11 @@ Verilog Attributes and non-standard features for use in blackboxes and whiteboxes. Use ``read_verilog -specify`` to enable this functionality. (By default these blocks are ignored.) +- The ``reprocess_after`` internal attribute is used by the Verilog frontend to + mark cells with bindings which might depend on the specified instantiated + module. Modules with such cells will be reprocessed during the ``hierarchy`` + pass once the referenced module definition(s) become available. + Non-standard or SystemVerilog features for formal verification ============================================================== @@ -566,7 +573,7 @@ Building the documentation ========================== Note that there is no need to build the manual if you just want to read it. -Simply download the PDF from http://www.clifford.at/yosys/documentation.html +Simply download the PDF from https://yosyshq.net/yosys/documentation.html instead. On Ubuntu, texlive needs these packages to be able to build the manual: