731 SI F from_half(U16 h) {  in from_half()  function
1727     r = from_half(R);  in STAGE()
1728     g = from_half(G);  in STAGE()
1729     b = from_half(B);  in STAGE()
1730     a = from_half(A);  in STAGE()
1737     dr = from_half(R);  in STAGE()
1738     dg = from_half(G);  in STAGE()
1739     db = from_half(B);  in STAGE()
1740     da = from_half(A);  in STAGE()
1749     r = from_half(R);  in STAGE()
1750     g = from_half(G);  in STAGE()
1751     b = from_half(B);  in STAGE()
1752     a = from_half(A);  in STAGE()