590 #define ROUND(L, R, A, B, K, d)					\  argument
591 	B = K[0];			A = K[1];	K += d;	\
592 	B ^= R;				A ^= R;			\
593 	B &= 0x3f3f3f3f;		ROR(A, 4);		\
594 	L ^= S8[0xff & B];		A &= 0x3f3f3f3f;	\
596 	L ^= S7[0xff & A];					\
597 	L ^= S5[0xff & (A >> 8)];	A >>= 16;		\
600 	L ^= S3[0xff & A];					\
601 	L ^= S1[0xff & (A >> 8)];
809 	u32 L, R, A, B;  in des_encrypt()  local
815 	IP(L, R, A);  in des_encrypt()
817 		ROUND(L, R, A, B, K, 2);  in des_encrypt()
818 		ROUND(R, L, A, B, K, 2);  in des_encrypt()
820 	FP(R, L, A);  in des_encrypt()
832 	u32 L, R, A, B;  in des_decrypt()  local
838 	IP(L, R, A);  in des_decrypt()
840 		ROUND(L, R, A, B, K, -2);  in des_decrypt()
841 		ROUND(R, L, A, B, K, -2);  in des_decrypt()
843 	FP(R, L, A);  in des_decrypt()
898 	u32 L, R, A, B;  in des3_ede_encrypt()  local
904 	IP(L, R, A);  in des3_ede_encrypt()
906 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
907 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
910 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
911 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
914 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
915 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
917 	FP(R, L, A);  in des3_ede_encrypt()
929 	u32 L, R, A, B;  in des3_ede_decrypt()  local
935 	IP(L, R, A);  in des3_ede_decrypt()
937 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
938 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
941 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
942 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
945 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
946 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
948 	FP(R, L, A);  in des3_ede_decrypt()