foo() calls bar(). bar() starts at address 0x004004CD. If you look at the machine code for foo()'s call to bar(), however, you'll see that the actual number in the function call is 0xFFFF,FFB8

0x04004e1 :

. . .

40050e: 89 c7 mov %eax,%edi

400510: e8 b8 ff ff ff callq 4004cd

400515: 89 45 f8 mov %eax,-0x8(%rbp)

. . .

1. What number did the CPU add with 0xFFFF,FFB8 to get the address of bar(), 0x0040,04CD?
2. Do this addition. Compute 0x0040,04CD.