The disassembled code for two functions first and last is shown below, along with the code for a call of first by function main:

Each of these instructions is given a label, similar to those in Figure 3.27(a). Starting with the calling of first(10) by main, fill in the following table to trace instruction execution through to the point where the program returns back to main.

Figure 3.27(a)

1 0000000000400540 : 2 3 4 5 6 7 8 9 Disassembly of last (long u, long v) u in %rdi, v in %rsi 10 11 400540: 48 89 8 400543: 48 Of af c6 400547: c3 Disassembly of last (long x) x in %rdi 0000000000400548 : 400548: 48 8d 77 01 40054c: 48 83 ef 01 400550: e8 eb ff ff ff f3 c3 400555: 400560: 400565: 48 89 c2 e8 e3 ff ff ff mov imul retq %rdi,%rax %rsi,%rax lea 0x1 (%rdi), %rsi sub $0x1,%rdi callq 400540 repz retq callq 400548 mov %rax, %rdx L1: u L2: u*v L3: Return F1: x+1 F2: x-1 F3: Call last (x-1,x+1) F4: Return M1: Call first (10) M2: Resume