The ARM processor has how many general‐purpose registers? List the behaviour of these register.
The ARM processor has how many general‐purpose registers? List the behaviour of these register.
Homework Answers
There is 30 general purpose register in ARM. (except ARMv6-M and ARMv7-M based processor).
At any point in time, 15 general purpose registers are visible to the user. I have stated their name and usage below.
R0 - R12 = 13 Registers:
These Registers are used to load/store the values, which are being used by execution of the program.
SP(R13) = Stack Pointer
This register is used to store the address of the next instruction by the program where the address of the next instruction is saved.
LR(R14) = Link register
This register is used to store the return address of any subroutine being called from the program
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The ARM processor has how many general‐purpose registers? List
the behaviour of these register.
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