HelenOS sources

EOI               143 kernel/arch/amd64/include/arch/smp/apic.h #define EOI  (0x0b0U / sizeof(uint32_t))
EOI               143 kernel/arch/ia32/include/arch/smp/apic.h #define EOI  (0x0b0U / sizeof(uint32_t))
EOI                83 kernel/arch/ia64/include/arch/interrupt.h #define EOI  0  /**< The actual value doesn't matter. */