Even so the MIPS processor is a true 64 bit machine, VxWorks runs it in a 32 bit mode which can not support native 64 bit integers. However, the gnu c compiler will support 64 bit integers (long long) by emulating the arithemtic in 32 bit wide registers. To enable this support the gcc library must be linked to the final object file (see also the linker options).

NEVER use the VxWorks 'printf' function on long long's. (The compiler won't complain, but the displayed numbers are incorrect.)

Author:

Daniel Sigg