hex - I need to understand some hexadecimal notation -

-

I have to do some bitwork operation to check conflicts for my game, but, I stumble into some hexadecimal notation By using the binary trick, we can do a simple and y coordinate 

  Y = Y & amp; $ Fffff0

, and this will get us rid of less bits so that the value of 16 will be a valuable one, and keeping it out of collision, and back at 64; Since 

 % 1001000 (68) & amp; $ FEFFF 0 =% 1000000 (64)

Another formula: 

 $ code = $ fffffff0 = 4294967280 = ~ $ F = ~ $ 15 $ ffffffe0 = 4294967264 = ~ $ 1F = ~ 31

What kind of hexadecimal marking is this? What does '$' mean?

~ is the operator for the operation of the operation not . What it does is to turn all the bits into 0 become 1 and 1 is formed.

$ before the value, tells the compiler a hexadecimal number without it, fffffff0 will be treated as a variable name.

So you can see that 15 mean 15 decimal and f hexadecimal, $ 15 Is 15 hexadecimal and 21 decimal.


Comments

Post a Comment

Popular posts from this blog

java - org.apache.http.ProtocolException: Target host is not specified -

-
I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
Read more

c# - Chart control: Design messed Up after clearing and re-adding Y-Values -

-
Image
The day was struggling with this. I have three series on a chart that looks like this. Note: I am using vanof control. They are being added on the basis of input from the calculation. I am using this code to add value to each series. this.chart1.Series ["green"]. Points. AddY (greenvalue); This.chart1.Series ["totalsaving"] Points.AddY (totalsavingvalue). This.chart1.Series ["blue"] Points.AddY (bluevalue). I have set series properties like this. Both green and totalsaving are set to StackedColumn, the blue chart is set to the column for type. I started then To do is a button that brings the user back to the input field and then I am using this code to clear the series values ​​on the start code. chart 1. Series ["totaling"]. Points. clear (); Chart1.Series ["green"] Points.Clear () .; Chart1.Series ["blue"] Points.Clear () .; The same calculation click above is being calculated for the calculation of th...
Read more

javascript - Bootstrap Modal won't close, previously appended to Body using JQuery -

-
So I go to all the difficulties to get a modal and working text box, then I close it Go to the AJAX success event, but nothing seems to work I'll try. var id; Var refundarm = ''; Var Token = $ ("Meta [name = 'CSRF-Token']"). Attr ('content'); $ ('[Data-Toggle =' Model ']'). Find ID from ('click', function (e) {var checkEventCount = 1; var prevTarget; // Models href attribute ID = $ (this) .attr ('href'). (/ [^ 0-9.] / G, ""); $ ('# new_refund_modal' + id) .on ('show.bs.modal', function (e) {if (prevofarget == 'undefined' || (CzechEventCount == 1 & amp; Amp; e.target! = PrevTarget)) {prevTarget = e.target; CzechEventContent ++; E.Pravant Default (); $ (E.T. ('$'), ('$'), () () () () (Value)) = Refund Amount (Refund amount = $ (this) .val ();}});} And if (e.target == Navigate & amp; amp; Number == 2) {checkeventcount--;}});}); $ ('Refund-deposit-BTN...
Read more