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Fixed asm() constraints.

This commit is contained in:
Marcus Meissner 2000-05-11 21:45:09 +00:00 committed by Alexandre Julliard
parent f1822356b5
commit 11353fcb6c
1 changed files with 4 additions and 2 deletions
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6
graphics/x11drv/dib.c
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@ -907,19 +907,21 @@ static void X11DRV_DIB_SetImageBits_8( int lines, const BYTE *srcbits,
case 16:
#if defined(__i386__) && defined(__GNUC__)
/* Some X servers might have 32 bit/ 16bit deep pixel */
if (bmpImage->bits_per_pixel == 16)
if (lines && (dstwidth!=left) && (bmpImage->bits_per_pixel == 16))
{
for (h = lines ; h--; ) {
int _cl1,_cl2; /* temp outputs for asm below */
/* Borrowed from DirectDraw */
__asm__ __volatile__(
"xor %%eax,%%eax\n"
"cld\n"
"1:\n"
" lodsb\n"
" movw (%%edx,%%eax,4),%%ax\n"
" stosw\n"
" xor %%eax,%%eax\n"
" loop 1b\n"
: /*"=S" (bits), "=D" (dstbits)*/
:"=S" (bits), "=D" (_cl1), "=c" (_cl2)
:"S" (bits),
"D" (bmpImage->data+h*bmpImage->bytes_per_line+left*2),
"c" (dstwidth-left),