A fat binary is any executable file, such as an application or code resource, that contains both 680x0 and PowerPC code. Creating a fat binary requires a little more work for the software developer, but the reward is optimal code performance in either environment.

A fat application contains PowerPC code in its data fork and a 680x0 version of the same code in its resource fork. You can run a fat application on both types of Macintosh computers.

Remember that PowerPC code is stored in the data fork of the application file by default when you build a PowerPC application. This makes building fat applications possible.

[Previous] [Top] [Next]