Question & Answer: Write an assembly program that calculates the value of the following polynomial assuming signed…..

Write an assembly program that calculates the value of the following polynomial assuming signed integers x and y are stored in registers r0 and r1 respectively. Test this programs for x values of 2, -5, and 10 using the TIVA board. What are the resulting values of y for these three x values? How many multiply instructions are needed? State to the grader whether you have actually tested your program. Y = 3x^3 – 7x^2 +10x – 12

4. Write an assembly program that calculates the value of the following polynomial assuming signed integers x and y are stored in registers ro and rl respectively. Test this programs for x values of 2, -5, and 10 using the TIVA board. What are the resulting values of y for these three x values? How many multiply instructions are needed? State to the grader whether you have actually tested your program 3x 7x2 +10x 12

Expert Answer

 main:

push {r7}
sub sp, sp, #12
add r7, sp, #0
ldr r3, [r7, #4]
ldr r2, [r7, #4]
mul r2, r2, r3
mov r3, r2
lsl r3, r3, #1
adds r3, r3, r2
ldr r2, [r7, #4]
mul r2, r2, r3
ldr r3, [r7, #4]
ldr r1, [r7, #4]
mul r3, r1, r3
mov r1, r3
lsl r3, r3, #3
subs r3, r1, r3
adds r1, r2, r3
ldr r2, [r7, #4]
mov r3, r2
lsl r3, r3, #2
adds r3, r3, r2
lsl r3, r3, #1
adds r3, r1, r3
sub r3, r3, #11
str r3, [r7, #0]
mov r3, #0
mov r0, r3
add r7, r7, #12
mov sp, r7
pop {r7}
bx lr

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