HelenOS sources

CONTEXT_OFFSET_R13   37 kernel/arch/amd64/include/arch/context_struct.h #define CONTEXT_OFFSET_R13  0x28
CONTEXT_OFFSET_R13   46 kernel/arch/ia64/include/arch/context_struct.h #define CONTEXT_OFFSET_R13             0x70
CONTEXT_OFFSET_R13   35 kernel/arch/ppc32/include/arch/context_struct.h #define CONTEXT_OFFSET_R13  0x0c