struct HelloWorldPass : public Pass {
HelloWorldPass() : Pass("hello_world") { }
- virtual void execute(vector<string>, Design*) {
+ void execute(vector<string>, Design*) override {
log("Hello World!\n");
}
} HelloWorldPass;
manual/PRESENTATION_Prog/my_cmd.cc
+Script Passes
+-------------
+
+The ScriptPass base class can be used to implement passes that just call other passes,
+like a script. Examples for such passes are:
+
+ techlibs/common/prep.cc
+ techlibs/common/synth.cc
+
+In some cases it is easier to implement such a pass as regular pass, for example when
+ScriptPass doesn't provide the type of flow control desired. (But many of the
+script passes in Yosys that don't use ScriptPass simply predate the ScriptPass base
+class.) Examples for such passes are:
+
+ passes/opt/opt.cc
+ passes/proc/proc.cc
+
+Whether they use the ScriptPass base-class or not, a pass should always either
+call other passes without doing any non-trivial work itself, or should implement
+a non-trivial algorithm but not call any other passes. The reason for this is that
+this helps containing complexity in individual passes and simplifies debugging the
+entire system.
+
+Exceptions to this rule should be rare and limited to cases where calling other
+passes is optional and only happens when requested by the user (such as for
+example `techmap -autoproc`), or where it is about commands that are "top-level
+commands" in their own right, not components to be used in regular synthesis
+flows (such as the `bugpoint` command).
+
+A pass that would "naturally" call other passes and also do some work itself
+should be re-written in one of two ways:
+
+1) It could be re-written as script pass with the parts that are not calls
+to other passes factored out into individual new passes. Usually in those
+cases the new sub passes share the same prefix as the top-level script pass.
+
+2) It could be re-written so that it already expects the design in a certain
+state, expecting the calling script to set up this state before calling the
+pass in questions.
+
+Many back-ends are examples for the 2nd approach. For example, `write_aiger`
+does not convert the design into AIG representation, but expects the design
+to be already in this form, and prints an `Unsupported cell type` error
+message otherwise.
+
+
Notes on the existing codebase
------------------------------
cd ~yosys
make clean
make test
+ make ystests
make vloghtb
make install
Release:
- set YOSYS_VER to x.y.z in Makefile
+ - remove "bumpversion" target from Makefile
- update version string in CHANGELOG
git commit -am "Yosys x.y.z"
git commit -am update
make push
+
+
+Cross-Building for Windows with MXE
+===================================
+
+Check http://mxe.cc/#requirements and install all missing requirements.
+
+As root (or other user with write access to /usr/local/src):
+
+ cd /usr/local/src
+ git clone https://github.com/mxe/mxe.git
+ cd mxe
+
+ make -j$(nproc) MXE_PLUGIN_DIRS="plugins/tcl.tk" \
+ MXE_TARGETS="i686-w64-mingw32.static" \
+ gcc tcl readline
+
+Then as regular user in some directory where you build stuff:
+
+ git clone https://github.com/cliffordwolf/yosys.git yosys-win32
+ cd yosys-win32
+ make config-mxe
+ make -j$(nproc) mxebin
+
+
+
How to add unit test
====================
relatively easy learn.
Install and configure google test (manually)
-============================================
+--------------------------------------------
In this section, you will see a brief description of how to install google
test. However, it is strongly recommended that you take a look to the official
repository (https://github.com/google/googletest) and refers to that if you
have any problem to install it. Follow the steps below:
-* Install: cmake
-* Clone google test project from: //github.com/rodrigosiqueira/logbook.git and
+* Install: cmake and pthread
+* Clone google test project from: https://github.com/google/googletest and
enter in the project directory
* Inside project directory, type:
you can use it instead of compile.
Create new unit test
-=======================
+--------------------
If you want to add new unit tests for Yosys, just follow the steps below:
unit test for kernel/celledges.cc, you will need to create a file like this:
tests/unit/kernel/celledgesTest.cc;
* Implement your unit test
-* If you want to compile your tests, just go to yosys root directory and type:
-```
-make unit-test
-```
Run unit test
-=============
+-------------
-To run all unit tests, you need to compile it first and then run it. Follow the
-steps below (from the yosys root directory):
+To compile and run all unit tests, just go to yosys root directory and type:
```
make unit-test
-make run-all-unitest
```
If you want to remove all unit test files, type:
projects / yosys.git / blobdiff