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title: SystemC hello world
keywords:c,macro,c++,systemc,HDL
# SystemC hello world
Miniaml example how to run SystemC without installation
## Compiling SystemC
Downloadin and compiling systemc framework
```bash
curl http://www.accellera.org/images/downloads/standards/systemc/systemc-2.3.2.tar.gz --output systemc-2.3.2.tar.gz
tar -xvf systemc-2.3.2.tar.gz
cd systemc-2.3.2/
./configure
```
## Prepare Makefile
After compilation of systemc libraries we can create "Hello World" example.
```bash
SYSTEMC_PATH=/home/user/downloads/source/systemc/systemc-2.3.2
SYSTEMC_INC=$(SYSTEMC_PATH)/src
SYSTEMC_LIB=$(SYSTEMC_PATH)/src/.libs
make:
g++ hello_world.cpp -I$(SYSTEMC_INC) -L$(SYSTEMC_LIB) -Wl,-rpath=$(SYSTEMC_LIB)\
-o hello_world -lsystemc -lm
```
```c
#include "systemc.h"
SC_MODULE (hello_world) {
SC_CTOR(hello_world) {
}
void say_hello() {
cout << "Hello world\n";
}
};
int sc_main(int argc, char **argv) {
hello_world hello("HELLO");
hello.say_hello();
return(0);
}
```
after compilation try to run
```bash
./hello_world
```
output of this example is
```bash
SystemC 2.3.2-Accellera --- Jul 13 2018 19:20:02
Copyright (c) 1996-2017 by all Contributors,
ALL RIGHTS RESERVED
Hello world
```
## Links
1. [http://www.accellera.org/downloads/standards/systemc](http://www.accellera.org/downloads/standards/systemc)
2. [http://cfs-vision.com/systemc-tutorial/](http://cfs-vision.com/systemc-tutorial/)
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