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Is it 32-bit or 64-bit?

• leggomylibro 8y ago
  32-bit: https://developer.arm.com/products/architecture/cpu-architecture/m-profile/docs/100688/latest/an-introduction-to-the-armv8-m-architecture https://developer.arm.com/products/architecture/cpu-architec... >Although the ARMv8-M architecture is 32-bit, it also supports data types of various sizes such as 8-bit and 16-bit. ARMv8-M also supports a limited set of 64-bit operations. It looks like it still uses the 'Thumb' instruction set, which combines 16- and 32-bit instructions in an attempt to balance code size and operation complexity.
• kbumsik 8y ago
  This is for microcontrollers so it doesn’t need 64 bit. I don’t think silicon vendors want 64 bit since making it 64 bit requires more gates. Cost matters.