1 Rotation around the front-to-back axis is called roll. 2  Rotation around the side-to-side axis is called pitch. 3  Rotation around the vertical axis is called yaw.  The Ailerons Control Roll. On the outer rear edge of each wing, the two ailerons move in opposite directions, up and down, decreasing lift on one wing while increasing it on the other.
A System call is a mechanism used by an application for requesting a service from the operating system. Examples of the services provided by the operating system are allocation and deallocation of memory, reporting of current date and time etc.
A call to set_system_gate (0x80, &system_call) sets interrupt 0x80 to be a vector to the system_call() entry point. How to Add Your Own System Calls Create a directory under the /usr/src/linux/ directory to hold your code.