Lines Matching refs:xd
71 int xd, yd; local84 xd = dx / DX;86 if (xd == 0) {99 numdots = abs (xd);100 motincr = DX * sgn (xd);109 if (abs (xd) > abs (yd)) {110 val = slope = (float) xd/yd;111 numdots = abs (xd);115 motincr = DX * sgn (xd);119 val = slope = (float) yd/xd;125 perpincr = DX * sgn (xd);