+f2_1_shift_table:
+; .byte 0x2B, 0x64, 0x66, 0x03, 0x51, 0x55, 0x87, 0x55
+ .byte 0x55, 0x87, 0x55, 0x51, 0x03, 0x66, 0x64, 0x2B
+f2_2_shift_table:
+; .byte (2<<1), (7<<1), (4<<1), (3<<1), (4<<1)+1, (6<<1)+1, (6<<1)
+ .byte (8<<1)+1, (6<<1), (6<<1)+1, (4<<1)+1, (3<<1), (4<<1), (7<<1), (2<<1)
+expand2_rot_table:
+ .byte 3,7,13,16,19,23,27
+