{"id":13345,"date":"2022-12-24T09:51:57","date_gmt":"2022-12-24T04:21:57","guid":{"rendered":"https:\/\/fastbitlab.com\/?p=13345"},"modified":"2023-08-22T11:07:24","modified_gmt":"2023-08-22T05:37:24","slug":"microcontroller-embedded-c-programming-lecture-147-aligned-and-un-aligned-data-storage","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/microcontroller-embedded-c-programming-lecture-147-aligned-and-un-aligned-data-storage\/","title":{"rendered":"Microcontroller Embedded C Programming Lecture 147| Aligned and un-aligned data storage"},"content":{"rendered":"
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Aligned and un-aligned data storage<\/span><\/strong><\/h1>\n
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Aligned Data Storage:<\/strong><\/span> When data is stored in aligned memory, it means that the memory address at which the data starts is a multiple of the data size. <\/span><\/p>\n

For example, if you have a 4-byte integer, it should be stored at an address that is divisible evenly by 4. Aligned data storage is generally more efficient because it allows the processor to fetch data in a single memory access, rather than requiring multiple accesses for unaligned data.<\/span><\/p>\n

Unaligned Data Storage:<\/strong> <\/span>Unaligned data storage means that the data is stored at memory addresses that do not match the data size. Accessing unaligned data may require multiple memory accesses, potentially impacting performance. In some architectures, unaligned memory access can also cause alignment faults or exceptions.<\/span><\/p>\n

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Aligned\/un-aligned data access<\/b><\/span><\/p>\n