1. How many total registers are there in the ARMV7 architecture? 2. What are ban

Question

1. How many total registers are there in the ARMV7 architecture? 2. What are banked registers and what are they used for? 3. How many privilege modes does the ARMv7 support? What are they? 4. How can a programmer set the interrupt priority? Show an example of two interrupts with two different priorities. Demonstrate your example by writing the assembly instructions necessary to perform the priority setup. You do not have to show the entire code, only the necessary instructions 5. The CPSR provides details on the current program status. Show the values of the least significant 10 bits of this register during the following status: a. The program is performing an FIQ b. The program is performing an IRQ with Thumb instructions c. The program encountered an invalid address during a load/store instruction

Explanation / Answer

If you post more than 1 question, as per chegg guidelines I have to solve only first question,

Ques 1. In ARMV7 architecture, there are 30 general purpose 32 bit registers.

These also include the banked SP and also the LR registers.

The registers become 32 if Security Extensions are implemented.

At one time, 15 general-purpose registers are visible according to the current mode.

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