Conversion Method:

1. Sign Bit: The leftmost bit (most significant bit [MSB]) is 1, indicating a negative number.
2. Most Significant bit is -128. all others are positive.
3. signed negative values are between 0 and -127
4. In binary this is between 00000000 and 11111111
5. to convert from binary to denary, assign bits to values.
6. Add values that are indicated by 1
7. Calculate Negative Denary Value

Example:

Convert the 2's complement 8-bit negative binary number 11011011 to its negative denary value.

1. MSB = 1, indicating a negative number.
2. Most Significant bit is -128. all others are positive.
3. Assign bits to values. e.g. -128 = 1, +64 = 1,+32 = 0 etc.
4. Add values that are indicated by 1 e.g. -128 + 64 + 16 etc.
5. Calculate Negative Denary Value: Converting 11011011 to denary, we get:
   
   

   Powers of 2	-27	26	25	24	23	22	21	20
   Denary	-128	+64	+32	+16	+8	+4	+2	+1
   Values	1	1	0	1	1	0	1	1

   
   
   • = -128 + 64 + 16 + 8 + 2 + 1
   • = -37

So, the negative denary value of the 2's complement 8-bit negative binary number 11011011 is -37.