Jump to content

  • Log In with Google      Sign In   
  • Create Account

We're offering banner ads on our site from just $5!

1. Details HERE. 2. GDNet+ Subscriptions HERE. 3. Ad upload HERE.


Idov

Member Since 30 Nov 2006
Offline Last Active Oct 21 2014 02:33 PM

Topics I've Started

Choosing a Machine learning method for a game.

15 October 2014 - 10:02 AM

Hi!
I'm thinking of developing some kind of a strategy game which will learn how the player plays as the time goes by.
It will probably have to consider a lot of variables in order to reach his best move each time and win.

But i'm a little confused about which learning method I should choose...
which would you recommend?
thanks! :)
 


Writing a game for mobile phones.

27 September 2013 - 05:54 AM

Hi!
I'm thinking of writing a game for iPhone/android and  I have some questions:
I read that there are a few game engines that help develop games quickly. Shoud I use them or try to develop a game from scretch?
Is there an engine that you would recommend?
I'm thinking of a game in which the user "looks down" on the characters like in "Fallout", "Red Alert", "Dune" etc. Is it considered a 3D or a 2D game?

thanks :)

 

 

 

 


Making a "Busy Loop" not consume that much CPU (without Sleep)

18 May 2013 - 09:13 AM

Hi!

I want to measure a very small period of time ( let's say 0.2 ms).

In order to do this, I'm using busy loop which checks whether or not we waited in the busy loop for the requested time like this:

 

double startTime = MeasureTime();

double endTime = MeasureTime();

while (endTime - startTime < timeToWait)
{

     endTime = MeasureTime();
}

 

 

I'd like to use some functions which don't use much CPU in that loop in order to ease the CPU load.

which functions should I use?

 

thanks :)


Invalid UNWIND_INFO data?

27 April 2013 - 07:44 AM

 

Hi!
I'm trying to read the unwind data of some dlls (in this case: ntdll.dll).
I noticed that in some cases I read the data jsut fine, but in other cases I see "garbage".
I used dumpbin to look at the unwind data in the dll and I noticed that when I read "garbage" - dumbin can't read it either.

This is what I see with dumpbin:

  00006EF4 000442AF 000442C3 0014265D
  00006F00 000442C3 000442CD 00142669
  00006F0C 000442CD 000442D9 001444D5
  00006F18 000442D9 000442FD 00147E95
  00006F24 000442FD 00044376 00144679
  00006F30 00044376 000443D0 001448A1
  00006F3C 000443D0 0004442C 001254B0
    Unwind version: 1
    Unwind flags: None
    Size of prologue: 0x0A
    Count of codes: 4
    Unwind codes:
      0A: ALLOC_LARGE, size=0x1A8
      03: PUSH_NONVOL, register=rdi
      02: PUSH_NONVOL, register=rsi

I also noticed that when I resolve an IP to a "garbaged" runtime function,SymFunctionTableAccess64 does something that couldn't find any documnetation of.
So my questions are:
1. Is this really a garbaged unwind info? If not, how can I read its content?
2. What does SymFunctionTableAccess64 do when it handles such "garbage"? Where can I find some documentation for it?

thanks! smile.png


Finding out which x64 instruction the IP points at

19 April 2013 - 02:36 AM

Hi!
I'm trying to find out if my instruction pointer is in the function's epilog.
To do so I need to know which instruction the IP is pointing at and which parameters the instruction gets.

(From what I understand, I just need to check if it points at a POP, "mov esp,ebp" or a RET instructions - and if it is one of these instruction - I'm in the epilog).

But how can I figure out which instruction the IP is pointing at?

thanks! :)


PARTNERS