The Thumb-2 mode of ARM Cortex-M4 processors supports a. only 16-bit instruction

Question

The Thumb-2 mode of ARM Cortex-M4 processors supports a. only 16-bit instructions. b. only 32-bit instructions. c. both 16-bit and 32-bit instructions. 9. The core register R13 of an ARM Cortex-M4 processor is used as a. Program counter. b. Link register. c. Stack pointer. 10. There are two stacks (main stack and process stack) implemented in an ARM Cortex-M4 processor. When the processor is in handler mode, the stack used is a. main stack. b. process stack. c. either main stack or process stack.

Explanation / Answer

8) b   

9) c    R13 is also referred to as SP, the Stack Pointer.

10) a   In Handler mode, the processor always uses the main stack

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