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-   -   Problem with variable in inline assembler (http://www.programmingforums.org/showthread.php?t=3951)

LindaW567 May 17th, 2005 12:26 PM

Problem with variable in inline assembler
 
I am calling this routine in a shared library (DLL) of mine which contains inline assembler.

This compiles and links ok.

When I build a program which calls this routine, when linking I get:

./libxis.so: undefined reference to `pSource'

this is talking about the variable in the second line of the assembler code as if it cannot see it in the function declaration.
I get this line for all of the passed variables.

Any ideas

Linda

[code]
void asmOffsetCorrection (WORD *pData, WORD *pDest, WORD *pOffsetCorrImage1, int nCount)
{
asm(".intel_syntax noprefix\n"
" mov esi, pData\n"
" mov edi, pOffsetCorrImage1\n"
" mov ecx, nCount\n"
" mov edx, pDest\n"
" Start1:\n"
" mov eax, 0\n"
" mov ax,[esi]\n" // Grauwert nach ax
" cmp ax,0xFFFA\n"
" ja SetWhite1\n" // 28.08.00 Ar
" mov bx,[edi]\n" // Offset nach
" sub ax,bx\n" // hieren
" jc SetBlack1\n" //
" mov [edx], ax\n" // Nein :
" jmp SetCount1\n"
" SetWhite1:\n"
" mov word ptr [edx], 0xFFFF\n" //
" jmp SetCount1\n" // 28.8.00 Ar
" SetBlack1:\n" // Ja: auf schwarz setzen
" mov word ptr [edx], 0x0\n"
" SetCount1:\n"
" inc esi\n" // Zeiger und
" inc esi\n" // n
" inc di\n"
" inc edi\n"
" inc edx\n"
" inc edx\n"
" dec x\n"
" cmp ecx,0"
" jg \n"
" mov eax,0");

}

[code]


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