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victor
2025-03-29 18:17:41 +01:00
parent a0a4afce31
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Practica_2/Ej1_read_valid_int.txt Normal file
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[0x080485a4]> pdf @ sym.read_valid_int
/ (fcn) sym.read_valid_int 76
| sym.read_valid_int (int arg_8h, int arg_ch);
| ; var int local_ch @ ebp-0xc
| ; arg int arg_8h @ ebp+0x8
| ; arg int arg_ch @ ebp+0xc
| ; CALL XREF from 0x080484ef (main)
| 0x0804848b 55 push ebp
| 0x0804848c 89e5 mov ebp, esp
| 0x0804848e 83ec18 sub esp, 0x18
| 0x08048491 c745f4000000. mov dword [local_ch], 0 ;->int x=0 en dirección ebp-0xc
| ..-> 0x08048498 83ec04 sub esp, 4
| :: 0x0804849b ff750c push dword [arg_ch]
| :: 0x0804849e ff7508 push dword [arg_8h]
| :: 0x080484a1 68c0850408 push str.Provide_a_number_x_between__d_and__d: ; 0x80485c0 ; "Provide a number x between %d and %d: "
| :: 0x080484a6 e895feffff call sym.imp.printf ; int printf(const char *format)
| :: 0x080484ab 83c410 add esp, 0x10
| :: 0x080484ae 83ec08 sub esp, 8
| :: 0x080484b1 8d45f4 lea eax, [local_ch]
| :: 0x080484b4 50 push eax
| :: 0x080484b5 68e7850408 push 0x80485e7
| :: 0x080484ba e8b1feffff call sym.imp.__isoc99_scanf ;->scanf
| :: 0x080484bf 83c410 add esp, 0x10
| :: 0x080484c2 8b45f4 mov eax, dword [local_ch] ;->guarda valor de x en eax
| :: 0x080484c5 394508 cmp dword [arg_8h], eax ; [0x13:4]=-1 ; 19 ;-> min < x
| `==< 0x080484c8 7fce jg 0x8048498
| : 0x080484ca 8b45f4 mov eax, dword [local_ch] ;->guarda valor de x en eax
| : 0x080484cd 3b450c cmp eax, dword [arg_ch] ; [0xc:4]=-1 ; 12 ;-> x > max
| `=< 0x080484d0 7fc6 jg 0x8048498
| 0x080484d2 8b45f4 mov eax, dword [local_ch]
| 0x080484d5 c9 leave
\ 0x080484d6 c3 ret