result of GET is 1 (1 for success)
0 0x00000000
1 0x00000000
2 0x00000000
3 0x00000000
4 0x00000000
5 0xffffffff
6 0x00000000
7 0x00000000
8 0x00000000
9 0x00000000
result of SET is 1 (1 for success)
sum != 0