VECTOR_PIC0_SPUR 221 kernel/arch/amd64/src/interrupt.c exc_register(VECTOR_PIC0_SPUR, "pic0_spurious", true, VECTOR_PIC0_SPUR 244 kernel/arch/ia32/src/interrupt.c exc_register(VECTOR_PIC0_SPUR, "pic0_spurious", true,HelenOS homepage, sources at GitHub