What is the decimal value of the result of adding 6410 6510 on a computer with 8-bit registers and Two's complement representation?

Adding 6410 6510 on a computer with 8 bit registers and Two's complement representation the decimal value is:

0 + 8192+4096+0+0+512+0+0+64+32+16+8+0+0+0 = + 12920

Explanation:

0 1100100001010

+ 0 1100101101110 = 0 11001001111000