HelenOS sources

EXC_NM             75 kernel/arch/amd64/include/arch/interrupt.h #define VECTOR_NM                 (IVT_EXCBASE + EXC_NM)
EXC_NM             78 kernel/arch/ia32/include/arch/interrupt.h #define VECTOR_NM                 (IVT_EXCBASE + EXC_NM)
HelenOS homepage, sources at GitHub