static inline uint32_t lduw_phys_internal(target_phys_addr_t addr, enum device_endian endian) { uint8_t *ptr; uint64_t val; MemoryRegionSection *section; section = phys_page_find(addr >> TARGET_PAGE_BITS); if (!(memory_region_is_ram(section->mr) || memory_region_is_romd(section->mr))) { /* I/O case */ addr = memory_region_section_addr(section, addr); val = io_mem_read(section->mr, addr, 2); #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap16(val); } #else if (endian == DEVICE_BIG_ENDIAN) { val = bswap16(val); } #endif } else { /* RAM case */ ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) + memory_region_section_addr(section, addr)); switch (endian) { case DEVICE_LITTLE_ENDIAN: val = lduw_le_p(ptr); break; case DEVICE_BIG_ENDIAN: val = lduw_be_p(ptr); break; default: val = lduw_p(ptr); break; } } return val; }