1                                 %line 1+1 cl_arg.asm
     2                                 
     3                                 
     4                                 
     5                                 [section .data]
     6                                 
     7                                 LF equ 10
     8                                 NULL equ 0
     9                                 TRUE equ 1
    10                                 FALSE equ 0
    11                                 EXIT_SUCCESS equ 0
    12                                 STDIN equ 0
    13                                 STDOUT equ 1
    14                                 STDERR equ 2
    15                                 SYS_read equ 0
    16                                 SYS_write equ 1
    17                                 SYS_open equ 2
    18                                 SYS_close equ 3
    19                                 SYS_fork equ 57
    20                                 SYS_exit equ 60
    21                                 SYS_creat equ 85
    22                                 SYS_time equ 201
    23                                 
    24                                 
    25 00000000 0A00                   new_line db LF, NULL
    26                                 
    27                                 [section .text]
    28                                 [global main]
    29                                 main:
    30                                 
    31                                 
    32                                 
    33                                 
    34 00000000 4989FC                 mov r12, rdi
    35 00000003 4989F5                 mov r13, rsi
    36                                 
    37                                 
    38                                 
    39                                 
    40                                 
    41                                 print_arguments:
    42 00000006 48C7C7[00000000]       mov rdi, new_line
    43 0000000D E830000000             call print_string
    44                                 
    45 00000012 48C7C300000000         mov rbx, 0
    46                                 
    47                                 print_loop:
    48 00000019 498B7CDD00             mov rdi, qword[r13+rbx*8]
    49 0000001E E81F000000             call print_string
    50                                 
    51 00000023 48C7C7[00000000]       mov rdi, new_line
    52 0000002A E813000000             call print_string
    53                                 
    54 0000002F 48FFC3                 inc rbx
    55 00000032 4C39E3                 cmp rbx, r12
    56 00000035 7CE0                   jl print_loop
    57                                 
    58                                 FINITO:
    59 00000037 48C7C03C000000         mov rax, SYS_exit
    60 0000003E 48C7C700000000         mov rdi, EXIT_SUCCESS
    61 00000045 0F05                   syscall
    62                                 
    63                                 
    64                                 
    65                                 
    66                                 
    67                                 
    68                                 
    69                                 
    70                                 
    71                                 
    72                                 
    73                                 
    74                                 
    75                                 
    76                                 [global print_string]
    77                                 print_string:
    78 00000047 55                     push rbp
    79 00000048 4889E5                 mov rbp, rsp
    80 0000004B 53                     push rbx
    81                                 
    82                                 
    83 0000004C 4889FB                 mov rbx, rdi
    84 0000004F 48C7C200000000         mov rdx, 0
    85                                 str_count_loop:
    86 00000056 803B00                 cmp byte[rbx], NULL
    87 00000059 7406                   je str_count_done
    88 0000005B 48FFC2                 inc rdx
    89 0000005E 48FFC3                 inc rbx
    90 00000061 EBF1                   jmp str_count_loop
    91                                 str_count_done:
    92 00000063 4883FA00               cmp rdx, 0
    93 00000067 740F                   je prt_done
    94                                 
    95                                 
    96 00000069 48C7C001000000         mov rax, SYS_write
    97 00000070 4889FE                 mov rsi, rdi
    98 00000073 BF01000000             mov edi, STDOUT
    99                                 
   100 00000078 0F05                   syscall
   101                                 
   102                                 
   103                                 prt_done:
   104 0000007A 5B                     pop rbx
   105 0000007B 5D                     pop rbp
   106 0000007C C3                     ret
   107