CS208 Introduction to Computer Systems
Wednesday, 12 April 2023

+ Exercises

int x = 0x1234ABCD;
int y = x & 8; // what does AND-ing with 8 do?

int x = 0xABCD1234;
int y = x | 8; // what does OR-ing with 8 do?

int x = 0xABCD1234;
int y = x & (~8); // what does AND-ing with ~8 do?

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int x = 0xABCD1234;
unsigned int y = x;
int x_shifted = (x >> 8); // ?
int y_shifted = (y >> 8); // ?

int x = 0xABCD1234;
unsigned int y = x;
int x_shifted = (x << 8); // ?
int y_shifted = (y << 8); // ?

int n = 4;
int x = (1 << n); // ?

int y = 0xFFFFFFFF;
y = (y >> n);

unsigned int z = 0xFFFFFFFF;
z = (z >> n);


+ Questions

+ Work time