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Memory model

The Cortex-A72 processor views memory as a linear collection of bytes numbered in ascending order from zero.

For example, bytes 0-3 hold the first stored word, and bytes 4-7 hold the second stored word.

The processor can store words in memory as either:

  • Big-endian format.
  • Little-endian format.

See the ARM® Architecture Reference Manual ARMv8 for more information about big-endian and little-endian memory systems.

Note

Instructions are always treated as little-endian.
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