17 #define ROUND(f, a, b, c, d, x, s)	\  argument
18 	(a += f(b, c, d) + x, a = rol32(a, s))
28 	__u32 a = buf[0], b = buf[1], c = buf[2], d = buf[3];  in half_md4_transform()  local
31 	ROUND(F, a, b, c, d, in[0] + K1,  3);  in half_md4_transform()
32 	ROUND(F, d, a, b, c, in[1] + K1,  7);  in half_md4_transform()
33 	ROUND(F, c, d, a, b, in[2] + K1, 11);  in half_md4_transform()
34 	ROUND(F, b, c, d, a, in[3] + K1, 19);  in half_md4_transform()
35 	ROUND(F, a, b, c, d, in[4] + K1,  3);  in half_md4_transform()
36 	ROUND(F, d, a, b, c, in[5] + K1,  7);  in half_md4_transform()
37 	ROUND(F, c, d, a, b, in[6] + K1, 11);  in half_md4_transform()
38 	ROUND(F, b, c, d, a, in[7] + K1, 19);  in half_md4_transform()
41 	ROUND(G, a, b, c, d, in[1] + K2,  3);  in half_md4_transform()
42 	ROUND(G, d, a, b, c, in[3] + K2,  5);  in half_md4_transform()
43 	ROUND(G, c, d, a, b, in[5] + K2,  9);  in half_md4_transform()
44 	ROUND(G, b, c, d, a, in[7] + K2, 13);  in half_md4_transform()
45 	ROUND(G, a, b, c, d, in[0] + K2,  3);  in half_md4_transform()
46 	ROUND(G, d, a, b, c, in[2] + K2,  5);  in half_md4_transform()
47 	ROUND(G, c, d, a, b, in[4] + K2,  9);  in half_md4_transform()
48 	ROUND(G, b, c, d, a, in[6] + K2, 13);  in half_md4_transform()
51 	ROUND(H, a, b, c, d, in[3] + K3,  3);  in half_md4_transform()
52 	ROUND(H, d, a, b, c, in[7] + K3,  9);  in half_md4_transform()
53 	ROUND(H, c, d, a, b, in[2] + K3, 11);  in half_md4_transform()
54 	ROUND(H, b, c, d, a, in[6] + K3, 15);  in half_md4_transform()
55 	ROUND(H, a, b, c, d, in[1] + K3,  3);  in half_md4_transform()
56 	ROUND(H, d, a, b, c, in[5] + K3,  9);  in half_md4_transform()
57 	ROUND(H, c, d, a, b, in[0] + K3, 11);  in half_md4_transform()
58 	ROUND(H, b, c, d, a, in[4] + K3, 15);  in half_md4_transform()
61 	buf[1] += b;  in half_md4_transform()