use ARM Cortex M0

int main(void) const char a "HELLO", const char bj: "WORLD!", char c[20] :", my_strcat(a, b, c) while (1) The function my_strcat takes three arguments (src1, src2, dst). Each is a 32-bit long pointer to a character. In this case, a pointer fits into a register, so argument src1 is passed through register rO, argument src2 is passed through register r1 and dst is passed through r2. Our function will load the character from a, b, and int main(void) const char a "HELLO", const char bj: "WORLD!", char c[20] :", my_strcat(a, b, c) while (1) The function my_strcat takes three arguments (src1, src2, dst). Each is a 32-bit long pointer to a character. In this case, a pointer fits into a register, so argument src1 is passed through register rO, argument src2 is passed through register r1 and dst is passed through r2. Our function will load the character from a, b, and