+f2_1_shift_table:
+; .byte 0x2B, 0x64, 0x66, 0x03, 0x51, 0x55, 0x87, 0x55
+; .byte 0x55, 0x87, 0x55, 0x51, 0x03, 0x66, 0x64, 0x2B
+ .byte 5, -5, -7, 8, -5, 5, -1, 5, -3, 0, 6, -6, -4, 6, -11, 2
+f2_2_shift_table:
+; .byte (2<<1), (7<<1), (4<<1), (3<<1), (4<<1)+1, (6<<1)+1, (6<<1)
+ .byte 8, -6, 6, 4, -3, -4, -7, -2
+expand2_rot_table:
+ .byte 3,7,13,16,19,23,27
+