i am workin’ on: “Code optimization for STM-32 f103/STM-32 F407 Discovery Time and memory”.

i am almost dead. i am not really understanding what should be done).

the task is: “just to try optimization in c/c++ and measure the results.”.

here what i did so far; https://github.com/abdibrokhim/code-optimization-arm

any help, any resources. highly appreciated 🧡

i tried to compare ASM vs C, referencing the book. Here’s:

Using C

compile bubble_sort.c file using;

gcc bubble_sort.c -03 -o bubble_sort

execute and time the program;

time ./bubble_sort

book says:
execute-time

Using Assembly

compile bubble_sort_asm.s file using;

gcc -c bubble_sort_asm.s -o bubble_sort_asm.o 

execute and time the program;

time ./bubble_sort_asm

compare the execution time of the two programs;

execute-time-c-asm

book says:
execute-time-c-asm-book

Result verification

enter verify folder and run the following command;

gcc driver.c bubble_sort.c bubble_sort_asm.s -o main

References

• Embedded systems. 2nd edition. ARM Programming and Optimization by Jason D. Bakos. here