Please give a detailed explaination and I will thumbs up. Thanks

Problem 3) Given the following assembly program P for GPR Processor: 1. Move X, R1 2. Move Y, R2 3. Add R1, R2 4. Move Z, R3 5. Mul R2, R3 6. Move X, R1 7. Add R1, R3 8. Move R3, L a) What is this program doing? b) Draw flowcharts showing the micro-step execution for each of the instructions 1, 3, 5 and 8. c) Calculate the execution times of instructions 1, 3, 5 and 8 assuming: Number of clock cycles Micro-step Register Transfer Decoding Add Execution Multiply Execution Memory Access 10 d) Calculate the total execution time for the whole program P e) Rewrite program P using Accumulator architecture. f Calculate the total time needed for the new program P' on the Accumulator architecture g) Compare both P and P', assuming they have the same clock speed