Top "Twos-complement" questions

Two's complement is a mathematical operation on binary numbers, as well as a binary signed number representation based on this operation.

How is overflow detected in two's complement?

I see that when I subtract positive and negative number using two's complement I get overflows. For example, if I …

binary bit-manipulation twos-complement
Why byte b = (byte) 0xFF is equals to integer -1?

Why byte b = (byte) 0xFF is equal to integer -1? Ex: int value = byte b = (byte) 0xFF; System.out.println(…

java bit twos-complement
Convert 2 bytes to a number

I have a control that has a byte array in it. Every now and then there are two bytes that …

c# binary bytearray byte twos-complement
How to represent a negative number with a fraction in 2's complement?

So I want to represent the number -12.5. So 12.5 equals to: 001100.100 If I don't calculate the fraction then it's simple, …

twos-complement
why Integer.MAX_VALUE + 1 == Integer.MIN_VALUE?

System.out.println(Integer.MAX_VALUE + 1 == Integer.MIN_VALUE); is true. I understand that integer in Java is 32 bit and …

java integer integer-overflow twos-complement jls
What to_unsigned does?

Could someone please explain me how VHDL's to_unsigned works or confirm that my understanding is correct? For example: C(30 …

type-conversion vhdl unsigned twos-complement signed-integer
sra(shift right arithmetic) vs srl (shift right logical)

Please take a look at these two pieces of pseudo-assembly code: 1) li $t0,53 sll $t1,$t0,2 srl $t2,$t0,2 sra $…

assembly mips bit-shift twos-complement
Two's complement conversion

I need to convert bytes in two's complement format to positive integer bytes. The range -128 to 127 mapped to 0 to 255. …

c# twos-complement
how to take twos complement of a byte in c++

I am looking at some c++ code and I see: byte b = someByteValue; // take twos complement byte TwosComplement = -b; Is …

c++ byte twos-complement
-128 and 128 in 2's complement

In 2's complement, 0-127 is represented as 00000000 to 01111111. In case of negative numbers, we invert all bits in the unsigned …

binary twos-complement