x86_64_sse2_x87/fasm/examples/x86/win64.asm

   1
   2 include 'format/format.inc'
   3
   4 format PE64 GUI
   5 entry start
   6
   7 section '.text' code readable executable
   8
   9   start:
  10         sub     rsp,8*5         ; reserve stack for API use and make stack dqword aligned
  11
  12         mov     r9d,0
  13         lea     r8,[_caption]
  14         lea     rdx,[_message]
  15         mov     rcx,0
  16         call    [MessageBoxA]
  17
  18         mov     ecx,eax
  19         call    [ExitProcess]
  20
  21 section '.data' data readable writeable
  22
  23   _caption db 'Win64 assembly program',0
  24   _message db 'Hello World!',0
  25
  26 section '.idata' import data readable writeable
  27
  28   dd 0,0,0,RVA kernel_name,RVA kernel_table
  29   dd 0,0,0,RVA user_name,RVA user_table
  30   dd 0,0,0,0,0
  31
  32   kernel_table:
  33     ExitProcess dq RVA _ExitProcess
  34     dq 0
  35   user_table:
  36     MessageBoxA dq RVA _MessageBoxA
  37     dq 0
  38
  39   kernel_name db 'KERNEL32.DLL',0
  40   user_name db 'USER32.DLL',0
  41
  42   _ExitProcess dw 0
  43     db 'ExitProcess',0
  44   _MessageBoxA dw 0
  45     db 'MessageBoxA',0