73 lines
1.8 KiB
NASM
73 lines
1.8 KiB
NASM
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PAGE,132
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; LIBENTRY.ASM
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;
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; Windows dynamic link library entry routine
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;
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; This module generates a code segment called INIT_TEXT.
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; It initializes the local heap if one exists and then calls
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; the C routine LibMain() which should have the form:
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; BOOL FAR PASCAL LibMain(HANDLE hInstance,
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; WORD wDataSeg,
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; WORD cbHeap,
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; LPSTR lpszCmdLine);
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;
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; The result of the call to LibMain is returned to Windows.
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; The C routine should return TRUE if it completes initialization
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; successfully, FALSE if some error occurs.
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.MODEL LARGE
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EXTRN LocalInit :FAR
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EXTRN __acrtused :ABS
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PUBLIC LibEntry
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.CODE
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LibEntry PROC FAR
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push bp
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push di ; handle of the module instance
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push ds ; library data segment
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push cx ; heap size
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push es ; command line segment
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push si ; command line offset
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; if we have some heap then initialize it
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jcxz restore ; jump if no heap specified
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; call the Windows function LocalInit() to set up the heap
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; LocalInit((LPSTR)start, WORD cbHeap);
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xor ax,ax
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push ds
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push ax
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push cx
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call LocalInit
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or ax,ax
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jnz restore
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int 3 ; heap init failed
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restore:
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pop si
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pop es
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pop cx
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pop ds
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pop di
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pop bp
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retf
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LibEntry ENDP
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end LibEntry
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