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/)