HelenOS sources

ZERO_PAGE_OFFSET   56 kernel/arch/mips32/src/mm/frame.c #define ZERO_PAGE_VALUE   (((volatile uint32_t *) ZERO_PAGE_ADDR)[ZERO_PAGE_OFFSET])
ZERO_PAGE_OFFSET   59 kernel/arch/mips32/src/mm/frame.c 	(((volatile uint32_t *) PA2KSEG1(frame << ZERO_PAGE_WIDTH))[ZERO_PAGE_OFFSET])