帮忙解释一下这段C代码！

[kmajian]

for (offset = 0; offset < FLASH_SIZE; offset += MMU_SECTION_SIZE) {
cached_addr += offset;
uncached_addr += offset;
*(mmu_tlb_base + (cached_addr >> 20)) = \ //***
(cached_addr | MMU_SECDESC | MMU_CACHEABLE);
*(mmu_tlb_base + (uncached_addr >> 20)) = \ //***
(cached_addr | MMU_SECDESC);
}

感觉不是很能理解，特别是标注***的地方!谢谢了。

[supermanone]

*(mmu_tlb_base + (cached_addr >> 20))
mmu_tlb_base :基地址
(cached_addr >> 20) :偏移地址
(mmu_tlb_base + (cached_addr >> 20)) :变量地址
*(mmu_tlb_base + (cached_addr >> 20)) :变量内容

[blh]

int index;
for (offset = 0; offset < FLASH_SIZE; offset += MMU_SECTION_SIZE) {
cached_addr += offset;
uncached_addr += offset;
index = cached_addr >> 20;
mmu_tlb_base[index] = (cached_addr | MMU_SECDESC | MMU_CACHEABLE);
index = uncached_addr >> 20;
mmu_tlb_base[index] = (cached_addr | MMU_SECDESC);
}

[xiaocai0001]

就是多了个地址偏移~

[fiftymetre]

//***
(cached_addr | MMU_SECDESC | MMU_CACHEABLE);
*(mmu_tlb_base + (uncached_addr >> 20)) = \ //***


就是与或运算，和地址偏移之类的。

[jsjjms]

*(mmu_tlb_base + (cached_addr >> 20)) = (cached_addr | MMU_SECDESC | MMU_CACHEABLE);

右边是或运算.取结果到 mmu_tlb_base偏移 (cached_addr右移20位) 的地方.