Help File:Unsigned values - Revision history

Leunsel at 20:57, 11 July 2025

2025-07-11T20:57:32Z

TheyCallMeTim13 at 12:14, 19 March 2017

2017-03-19T12:14:15Z

TheyCallMeTim13 at 08:15, 10 March 2017

2017-03-10T08:15:17Z

Sbryzl: Created page with '{| width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="#FFFCEA" | align="left" |(Un)Signed value(s)…'

2016-09-24T14:16:05Z

Created page with '{| width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="#FFFCEA" | align="left" |(Un)Signed value(s)…'

New page

{| width="100%" border="0" cellspacing="0" cellpadding="2" bgcolor="#FFFCEA"
| align="left" |(Un)Signed value(s)
|}<hr> 
In short, a value can hold a negative value if it is a signed value. 
This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is
incremented by 1. 
example: 
     12 = 00001100 
invert = 11110011 
   -12 = 11110100 (notice that if this was an unsigned value this would be 244; because 256-12=244)

@@ Line 1: / Line 1: @@
 [[Category:Help]]
-In short, a value can hold a negative value if it is a signed value.
+In computing, a value can be either signed or unsigned.
-This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is incremented by 1.
+'''Unsigned values''' can only represent zero and positive numbers, while '''signed values''' can represent both positive and negative numbers.
-example:
+== How Negative Numbers Are Stored (Two's Complement) ==
-= 00001100
-invert = 11110011
+To store negative numbers, computers use a method called '''two's complement''':
-  -12 = 11110100 (notice that if this was an unsigned value this would be 244; because 256-12=244)
+* Start with the binary representation of the positive number.
 == Links ==
 * [[Cheat Engine:Help File|Help File]]
 * [[Help_File:Big_endian_4_byte|Back]]
 * [[Help_File:Found_address_list|Next]]

← Older revision		Revision as of 12:14, 19 March 2017
Line 1:		Line 1:
		+	[[Category:Help]]
	In short, a value can hold a negative value if it is a signed value.		In short, a value can hold a negative value if it is a signed value.
	This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is incremented by 1.		This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is incremented by 1.

@@ Line 1: / Line 1: @@
-{|  width="100%"  border="0"  cellspacing="0"  cellpadding="2"  bgcolor="#FFFCEA"
+In short, a value can hold a negative value if it is a signed value.
-|  align="left" |<font face="Arial"  color="#010101"  class="Arial3"><b>(Un)Signed value(s)</b></font>
+This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is incremented by 1.
-|}<hr><font class="Arial1"><br>
-In short, a value can hold a negative value if it is a signed value.<br>
+example:
-This is done by inverting all the bits. All 0's become 1's and 1's become 0's. Then the resulting value is
+= 00001100
-incremented by 1.<br><br>
+invert = 11110011
-example:<br>
+  -12 = 11110100 (notice that if this was an unsigned value this would be 244; because 256-12=244)
-&nbsp;&nbsp;&nbsp;&nbsp; 12 = 00001100<br>
-invert = 11110011<br>
+== Links ==
-&nbsp;&nbsp; -12 = 11110100 (notice that if this was an unsigned value this would be 244; because 256-12=244)<br></font>
+* [[Cheat Engine:Help File|Help File]]