1                                 %line 1+1 cmdl.asm
     2                                 
     3                                 
     4                                 
     5                                 [section .data]
     6                                 
     7                                 
     8                                 LF equ 10
     9                                 NULL equ 0
    10                                 TRUE equ 1
    11                                 FALSE equ 0
    12                                 EXIT_SUCCESS equ 0
    13                                 STDIN equ 0
    14                                 STDOUT equ 1
    15                                 STDERR equ 2
    16                                 SYS_read equ 0
    17                                 SYS_write equ 1
    18                                 SYS_open equ 2
    19                                 SYS_close equ 3
    20                                 SYS_fork equ 57
    21                                 SYS_exit equ 60
    22                                 SYS_creat equ 85
    23                                 SYS_time equ 201
    24                                 
    25                                 
    26                                 
    27 00000000 0A00                   new_line db LF, NULL
    28                                 
    29                                 [section .text]
    30                                 [global main]
    31                                 main:
    32                                 
    33                                 
    34                                 
    35                                 
    36 00000000 4989FC                 mov r12, rdi
    37 00000003 4989F5                 mov r13, rsi
    38                                 
    39                                 
    40                                 
    41                                 
    42                                 
    43                                 print_arguments:
    44 00000006 48C7C7[00000000]       mov rdi, new_line
    45 0000000D E830000000             call print_string
    46                                 
    47 00000012 48C7C300000000         mov rbx, 0
    48                                 
    49                                 print_loop:
    50 00000019 498B7CDD00             mov rdi, qword[r13+rbx*8]
    51 0000001E E81F000000             call print_string
    52                                 
    53 00000023 48C7C7[00000000]       mov rdi, new_line
    54 0000002A E813000000             call print_string
    55                                 
    56 0000002F 48FFC3                 inc rbx
    57 00000032 4C39E3                 cmp rbx, r12
    58 00000035 7CE0                   jl print_loop
    59                                 
    60                                 FINITO:
    61 00000037 48C7C03C000000         mov rax, SYS_exit
    62 0000003E 48C7C700000000         mov rdi, EXIT_SUCCESS
    63 00000045 0F05                   syscall
    64                                 
    65                                 
    66                                 
    67                                 
    68                                 
    69                                 
    70                                 
    71                                 
    72                                 
    73                                 
    74                                 
    75                                 
    76                                 
    77                                 
    78                                 
    79                                 [global print_string]
    80                                 print_string:
    81 00000047 55                     push rbp
    82 00000048 4889E5                 mov rbp, rsp
    83 0000004B 53                     push rbx
    84                                 
    85                                 
    86 0000004C 4889FB                 mov rbx, rdi
    87 0000004F 48C7C200000000         mov rdx, 0
    88                                 str_count_loop:
    89 00000056 803B00                 cmp byte[rbx], NULL
    90 00000059 7406                   je str_count_done
    91 0000005B 48FFC2                 inc rdx
    92 0000005E 48FFC3                 inc rbx
    93 00000061 EBF1                   jmp str_count_loop
    94                                 str_count_done:
    95 00000063 4883FA00               cmp rdx, 0
    96 00000067 740F                   je FINITO2
    97                                 
    98                                 
    99 00000069 48C7C001000000         mov rax, SYS_write
   100 00000070 4889FE                 mov rsi, rdi
   101 00000073 BF01000000             mov edi, STDOUT
   102                                 
   103 00000078 0F05                   syscall
   104                                 
   105                                 
   106                                 
   107                                 FINITO2:
   108 0000007A 5B                     pop rbx
   109 0000007B 5D                     pop rbp
   110 0000007C C3                     ret