4 ms·
As wtallis said: Cortex-M executes only Thumb instructions, while pre-ARM7TDMI don't execute Thumb instructions.
by kps 10y ago
As wtallis said: Cortex-M executes only Thumb instructions, while pre-ARM7TDMI don't execute Thumb instructions.
- zeusk 10y agoCortex-A, Cortex-M, Cortex-R have different targets, ISA, System organization as far back as their origination. Not sure why you'd compare them, I was obviously talking about processors within the same segment, Cortex-R7 is backwards compatible with previous versions, Cortex-A72 is backwards compatible with previous versions, Cortex-M3 is backwards compatible with previous versions.