Структура программы на ассемблере


            

Структура программы на ассемблере

Степень завершённости урока: 65%   

Статистика урока:

Программа на ассемблере состоит из нескольких секций:

Ниже - пример кода на FASM, который создаёт пустое окно.

format PE GUI 4.0
entry start
include 'win32a.inc'

	
section '.code' code readable executable

	
start:
    push 0
    call [GetModuleHandle]
    mov [hInstance], eax
    push 32512
    push 0
    call [LoadCursor]
    mov [hCursor], eax
    mov [wc.style], CS_HREDRAW or CS_VREDRAW
    mov [wc.lpfnWndProc], WindowProc
    mov [wc.cbClsExtra], 0
    mov [wc.cbWndExtra], 0
    mov eax, [hInstance]
    mov [wc.hInstance], eax
    mov eax, [hCursor]
    mov [wc.hCursor], eax
    mov [wc.hbrBackground], COLOR_WINDOW + 1
    mov [wc.lpszMenuName], 0
    mov [wc.lpszClassName], className
    mov [wc.hIcon], 0

	
    push wc
    call [RegisterClass]
    test eax, eax
    jz exit

	
    push 0
    push [hInstance]                
    push 0
    push 0
    push 600
    push 800
    push 0x80000000
    push 0x80000000
    push WS_OVERLAPPEDWINDOW        
    push windowTitle                
    push className                  
    push 0
    call [CreateWindowEx]
    test eax, eax
    jz exit
    mov [hWnd], eax

	
    push SW_SHOW
    push [hWnd]
    call [ShowWindow]

	
    push [hWnd]
    call [UpdateWindow]

	
msg_loop:
    lea eax, [msg]
    push 0
    push 0
    push 0
    push eax
    call [GetMessage]
    test eax, eax
    jz exit

	
    lea eax, [msg]
    push eax
    call [TranslateMessage]

	
    lea eax, [msg]
    push eax
    call [DispatchMessage]
    jmp msg_loop

	
exit:
    push [msg.wParam]
    call [ExitProcess]

	
proc WindowProc hWnd, uMsg, wParam, lParam
    cmp [uMsg], WM_DESTROY
    jne .default
    push 0
    call [PostQuitMessage]
    xor eax, eax
    ret
  .default:
    push [lParam]
    push [wParam]
    push [uMsg]
    push [hWnd]
    call [DefWindowProc]
    ret
endp

	
section '.data' data readable writeable

	
className    db 'SimpleClass',0
windowTitle  db 'Пустое окно',0

	
hInstance    dd 0
hCursor      dd 0
hWnd         dd 0
wc           WNDCLASS
msg          MSG

	
section '.idata' import data readable writeable

	
library kernel32,'KERNEL32.DLL',\
        user32,'USER32.DLL'

	
import kernel32,\
       GetModuleHandle,'GetModuleHandleA',\
       ExitProcess,'ExitProcess'

	
import user32,\
       RegisterClass,'RegisterClassA',\
       CreateWindowEx,'CreateWindowExA',\
       ShowWindow,'ShowWindow',\
       UpdateWindow,'UpdateWindow',\
       GetMessage,'GetMessageA',\
       TranslateMessage,'TranslateMessage',\
       DispatchMessage,'DispatchMessageA',\
       DefWindowProc,'DefWindowProcA',\
       PostQuitMessage,'PostQuitMessage',\
       LoadCursor,'LoadCursorA'

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Страница обновлена 23 ноября 2025 года.