Write a RISC-V assembly program that inputs integer value x (assumed non-negative) and calculates the value of the f(x) mathematical function according to the specified equations. f(x) must be implemented as a function and must comply with RISC-V calling conventions.
f(x) = 6 * x**5 + 4 * x**3 - 5 * x**2 + 7 * x if x < 5
f(x) = 4 if x >= 5
f(x) = 7**x + -2 if x == 6
f(x) = -1 * x + 10 if x > 9
This task means to create a RISC-V assembly program that does the same as this Python program:
x = 1
f(x) = 12
x = 5
f(x) = 4
x = 6
f(x) = 117647
x = 7
f(x) = 4
x = 11
f(x) = -1
#попытка f(x) = 6 * x**5 + 4 * x**3 - 5 * x**2 + 7 * x if x < 5
.text
li a7, 5
ecall
mv t0, a0
addi t1, zero, 6
addi t2, zero, 4
addi t3, zero, 5
addi t4, zero, zero
j compare
loop:
mul t0, t0, t0
addi t4, zero, 1
compare:
blt t4, t2 loop
bge t0, t3, endif
mv a0, t4
li a7, 1
ecall
endif:
# f(x) = 4 if x >= 5
.text
li a7, 5
ecall
mv t0, a0
addi t1, zero, 5
addi t2, zero, 4
blt t0, t1, endif
mv a0, t2
li a7, 1
ecall
endif:
# f(x) = 7**x + -2 if x == 6
.text
li a7, 5
ecall
mv t0, a0
addi t1, zero, 7
addi t2, zero, 2
addi t3, zero, 6
mul t4, t0, t0
mul t4, t4, t1
sub t4, t4, t2
bne t0, t3, endif
mv a0, t4
li a7, 1
ecall
endif:
# f(x) = -1 * x + 10 if x > 9
.text
li a7, 5
ecall
mv t0, a0
addi t1, zero, 9
addi t2, zero, -1
mul t3, t0, t2
addi t3, t3, 10
bge t1, t0, endif
mv a0, t3
li a7, 1
ecall
endif: