Script started on Tue Feb 12 09:25:49 2002
linux1% nasm -f elf add.asm
linux1% ld add.o
linux1% 

linux1% a.out
linux1% 

linux1% gdb a.out
GNU gdb Red Hat Linux 7.x (5.0rh-15) (MI_OUT)
Copyright 2001 Free Software Foundation, Inc.
...

(gdb) display $eax
(gdb) display/i $eip
(gdb) 
(gdb) break *start
Breakpoint 1 at 0x8048081
(gdb) run
Starting program: /afs/umbc.edu/users/c/h/chang/home/asm/lec05/a.out 

Breakpoint 1, 0x08048081 in start ()
2: x/i $eip  0x8048081 <start>: mov    eax,0x11
1: $eax = 0
(gdb) si
0x08048086 in start ()
2: x/i $eip  0x8048086 <start+5>:       mov    ebx,0x80490d8
1: $eax = 17
(gdb) 
0x0804808b in start ()
2: x/i $eip  0x804808b <start+10>:      mov    ecx,0x9
1: $eax = 17
(gdb) 
0x08048090 in start ()
2: x/i $eip  0x8048090 <start+15>:      add    eax,0x3
1: $eax = 17
(gdb) 
0x08048095 in start ()
2: x/i $eip  0x8048095 <start+20>:      add    eax,ecx
1: $eax = 20
(gdb) 
0x08048097 in start ()
2: x/i $eip  0x8048097 <start+22>:      add    ax,cx
1: $eax = 29
(gdb) 
0x0804809a in start ()
2: x/i $eip  0x804809a <start+25>:      add    eax,ds:0x80490d8
1: $eax = 38
(gdb) 
0x080480a0 in start ()
2: x/i $eip  0x80480a0 <start+31>:      add    eax,DWORD PTR [ebx]
1: $eax = 80
(gdb) 
0x080480a2 in start ()
2: x/i $eip  0x80480a2 <start+33>:      add    ds:0x80490d8,0x5
1: $eax = 122
(gdb) 
0x080480ac in start ()
2: x/i $eip  0x80480ac <start+43>:      add    ds:0x80490d8,eax
1: $eax = 122
(gdb) 
0x080480b2 in start ()
2: x/i $eip  0x80480b2 <start+49>:      mov    esi,0x80490dc
1: $eax = 122
(gdb) 
0x080480b7 in start ()
2: x/i $eip  0x80480b7 <start+54>:      mov    ecx,0x2
1: $eax = 122
(gdb) 
0x080480bc in start ()
2: x/i $eip  0x80480bc <start+59>:      add    eax,DWORD PTR [ecx+134516956]
1: $eax = 122
(gdb) 
0x080480c3 in start ()
2: x/i $eip  0x80480c3 <start+66>:      add    eax,DWORD PTR [esi+ecx]
1: $eax = 124
(gdb) 
0x080480c6 in start ()
2: x/i $eip  0x80480c6 <start+69>:      add    eax,DWORD PTR [esi+ecx+4]
1: $eax = 126
(gdb) 
0x080480ca in exit ()
2: x/i $eip  0x80480ca <exit>:  mov    ebx,0x0
1: $eax = 129
(gdb) cont
Continuing.

Program exited normally.
(gdb) quit
linux1%