I'm currently working on a project that needs to use long long support (64 bit) for certain bits of code.
I've activated the flags 'c99' and 'slld' in the codewarrior projects (- flag c99, -flag -slld) to activate long long support for my project.
Sometimes after certain 64 bit operations the linker fails with the following linker errors:
the linker always seems to fail at 64 bit shift operations.
One line in my code read:
|FTFL_FCCOB4 = (uint8_t)((dwData & 0xFF000000) >> 24);|
This led the linker to fail with the error "undefined: ARTSHLLL64"
after changing the order of mask and shift to
|FTFL_FCCOB4 = (uint8_t)((dwData >> 24) & 0x000000FF );|
it links just fine.
I have other examples in the code where the linker fails with similar errors e.g.
if (collisions & ((uint64_t)1 << (uint64_t)i))
This occurs on Codewarrior 10.3 for MCU when I compile for the MC56F84763 DSC
any hints? The compiler/linker toolchain does support long long and other long long operations seem to work as long as they are not bit shifts.