Computer engineering

#include <stdio.h> #include <stdint.h> #include <stdbool.h> #include <math.h> extern void aTask1(int32_t *arr1, int32_t *arr2, int32_t *arr3, uint32_t M); extern void aTask2(int32_t *arr1, int32_t *arr2, int32_t *arr3, uint32_t M_n); extern void aTask3(int32_t *arr1, int32_t *arr2, int32_t *arr3, uint32_t M_n); extern void aTask4(int32_t *arr1, int32_t *arr2, int32_t *arr3, uint32_t M_n); // Global variable #define M 8 // The size of the arrays uint32_t n = 8; // The n in Qm.n format float real_array1[M] = {11.1, -12.2, 13.3, 14.4, 15.5, 16.6, 17.7, 18.8}; float real_array2[M] = {1.1, 2.2, 3.3, -4.4, 5.5, 6.6, 7.7, 8.8}; float real_array3[M]; float *preal1, *preal2, *preal3; int32_t int_array1[M]; int32_t int_array2[M]; int32_t int_array3[M]; int32_t *pint1, *pint2, *pint3; int32_t float2Qmpn(float realnum, uint32_t n) { int32_t temp = (int32_t)(realnum * (1<<n)); if (temp) { return temp; } else { return 1; // the minimum nonzero number to avoid exception for DIV } } float Qmpn2float(int32_t intnum, uint32_t n) { return (float)intnum / (1<<n); } int main(void) { int i; // Initialize the Qm.n data pint1 = int_array1, pint2 = int_array2; preal1 = real_array1, preal2 = real_array2; for (i = 0; i < M; i++) { *pint1++ = float2Qmpn(*preal1++, n); *pint2++ = float2Qmpn(*preal2++, n); } // Task 1: for loop for C and asm summation preal1 = real_array1; preal2 = real_array2; preal3 = real_array3; printf("C Task 1: "); for (i = 0; i < M; i++) { *preal3 = *preal1++ + *preal2++; printf("%4.2f ", *preal3++); } printf("\n"); pint1 = int_array1; pint2 = int_array2; pint3 = int_array3; aTask1(pint1, pint2, pint3, M); printf("A Task 1: "); for (i = 0; i < M; i++) { printf("%4.2f ", Qmpn2float(*pint3++, n)); } printf("\n"); // Task 2: while loop for C and asm multiplication preal1 = real_array1; preal2 = real_array2; preal3 = real_array3; printf("C Task 2: "); i = 0; while (i < M) { *preal3 = *preal1++ * *preal2++; printf("%4.2f ", *preal3++); i++; } printf("\n"); pint1 = int_array1; pint2 = int_array2; pint3 = int_array3; uint32_t M_n = M | (n << 16); // Passing two parameters together aTask2(pint1, pint2, pint3, M_n); printf("A Task 2: "); for (i = 0; i < M; i++) { printf("%4.2f ", Qmpn2float(*pint3++, n)); } printf("\n"); // Task 3: do-while loop for C and asm division preal1 = real_array1; preal2 = real_array2; preal3 = real_array3; printf("C Task 3: "); i = M; do { *preal3 = *preal1++ / *preal2++; printf("%4.2f ", *preal3++); i--; } while (i); printf("\n"); pint1 = int_array1; pint2 = int_array2; pint3 = int_array3; M_n = M | (n << 16); // Passing two parameters together aTask3(pint1, pint2, pint3, M_n); printf("A Task 3: "); for (i = 0; i < M; i++) { printf("%4.2f ", Qmpn2float(*pint3++, n)); } printf("\n"); // Task 4: do-while loop for C and asm modulo operation pint1 = int_array1; pint2 = int_array2; pint3 = int_array3; printf("C Task 4: "); i = M; do { *pint3 = fmod(*pint1++, *pint2++); printf("%4.2f ", Qmpn2float(*pint3, n)); i--; } while (i); printf("\n"); pint1 = int_array1; pint2 = int_array2; pint3 = int_array3; M_n = M | (n << 16); // Passing two parameters together aTask4(pint1, pint2, pint3, M_n); printf("A Task 4: "); for (i = 0; i < M; i++) { printf("%4.2f ", Qmpn2float(*pint3++, n)); } printf("\n"); while (1); }