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Why Cortex-M7 doesn't support bit-banding?

Cortex-M7 processors tends to be for the high performance applications. So why it doesn't support bit-banding if this has a lot of advantages to the code size and performance?

Top replies

Joseph Yiu over 5 years ago +2 verified

Hi there, 1) Bit band and data cache doesn't match very well. One of the bit band address ranges is in SRAM region and is cacheable, With bit band, the same information is available from two address...
a.surati over 5 years ago +1

I can't speak for Arm, but you may find some answers here and here . Interestingly, despite bit-banding offering the best code density for register-level bit manipulation, it is not part of the Cortex...