So I have to write a program (the image above) which finds the max of a function on the domain of -6 <= x <= 5 and if I try to run or debug (gdb) the program the terminal outputs a message saying illegal instruction, specifically "in top ()". I'm new to assembly language and admittedly am struggling with it as a whole so any help would be appreciated.
Thank you
I had to get rid of the comments so it may be a bit confusing now
.global main
mov x19, -6 // integer that gets inerated from -6 to 5 (x)
//the following integers are used as the constants for each term in the function
y = -5x^3 - 31x^2 + 4x + 31
mov x24, -5
mov x25, -31
mov x26, 4
mov x27, 0
b main
main:
cmp x19,5
b.le loop
loop:
mul x20, x19, x19
mul x20, x20, x19
mul x20, x20, x24
mul x21, x19, x19
mul x21, x21, x25
mul x22, x19, x26
add x23, x20, x21
add x23, x23, x22
add x23, x23, 31
cmp x23, x27
b.gt top
add x19, x19, 1
b main
top:
mov x27, x23