IAR Embedded Workbench for 78K v4.81

Migrating to the 78K IAR Embedded Workbench version 4.x This guide gives hints for porting your application code and projects to the 78K IAR Embedded Workbench IDE version 4.x. C source code that was originally written for the IAR 78000 C Compiler version 3.x can be used also with the new 78K IAR C/C++ Compiler version 4.x.