Contents of the tar file:

hello_world.c  		is a C program that uses printf() function
_hello_world.c 		is a C program that uses the libC wrapper 
			of the system call function write()
hello_word-intel.s	is an assembler program for x86_64 
			architectures, using Intel assembler syntax. 
			It  uses the system call write() directly.
hello_world.py 		is a Python program that uses print() fucntion
_hello_world.py 	is a Python program that uses os.write() function
Makefile 		to be used by the GNU make utility
README.txt		this file


Several exemples of printing "Hello World" on screen. 
Some of them are C source files. To compile them all type:

$ make

Or to compile just the one that uses printf(), type:

$ make hello_world

To create the traces log file of hello_world.c and hello_world.py, type:

$ make traces

Finally, to see a two columns comparative of the traces, type:

$ make cmp-traces

 
