this is really a WTF bug

funcs/fimg-fits.c

@@ -36,17 +36,21 @@ if (fits_create_file(&fptr, outname, &status)) {
 	}
 
 naxes[0] = src->width;		naxes[1] = src->height;
-
 array = calloc(src->height, sizeof(float *));
+if (verbosity) fimg_describe(src, "to be saved as FITS");
 
-if (verbosity) fimg_describe(src, "to be saved as fits");
-
+#define REVERSE 1
 /* initialize pointers to the start of each row of the image */
+array[0] = src->R;
 for( idx=0; idx<naxes[1]; idx++ ) {
 	/**** MAGIC CODE MUST COME HERE ****/
+#if REVERSE
 	k = naxes[1] - idx - 1;
+#else
+	k = idx;
+#endif
 	array[idx] = src->R + (k*naxes[0]);
-	fprintf(stderr, "   %6d   %6d  %p\n", idx, k, array[idx]);
+	fprintf(stderr, "     %6d     %6d    %p\n", idx, k, array[idx]);
 	}
 
 if ( fits_create_img(fptr,  bitpix, naxis, naxes, &status) ) {