call

x86 - Does CALL instruction ALWAYS push the address pointed by EIP to stack?

流过昼夜 提交于 2019-12-06 02:41:59
问题 Is there any condition where the return address is not pushed into stack during a function call in x86 architecture? 回答1: No. CALL will, by definition, push the return address onto the stack before jumping to the target address. That return address is EIP (or RIP ) + sizeof(call instruction) (usually 5 bytes.) Volume 2 of the Intel® 64 and IA-32 Architectures Software Developer’s Manual states that CALL : Saves procedure linking information on the stack and branches to the called procedure

Magento: How to include a php call in the CMS pages

∥☆過路亽.° 提交于 2019-12-06 02:10:02
Following the instructions from this page: http://www.magento.cc/how-to-use-php-on-a-cms-page.html 1) i declared the module in the app/etc/modules : <?xml version="1.0"?> <config> <modules> <Stock_status> <active>true</active> <codePool>local</codePool> </Stock_status> </modules> </config> 2) Then i created the config.xml in app\code\local\Stock\status\Custom\etc with these contents in it: <?xml version="1.0"?> <config> <global> <blocks> <Stock_status> <class>Stock_status_Block</class> </Stock_status> </blocks> </global> </config> 3) afterwards i created a test.php in app/code/local/Stock

Powershell: Call operator (&) with escape param (--%) not working with non-static args

余生长醉 提交于 2019-12-06 01:24:45
问题 My Powershell script needs to invoke an EXE with a very complicated set of arguments. I'm using Powershell 3.0, and must stick with that version. Alas, even the "magic" escaping operator ( --% ) isn't helping me. For example, using the Call operator, consider this: & other.exe --% action /mode fast /path:"location with spaces" /fancyparam { /dothis /dothat:"arg with spaces" } /verbose Now, if it were that simple, my script could easily work fine. But it isn't that simple. The arguments for

Why are there 6T states in opcode fetch of CALL instead of 4?

∥☆過路亽.° 提交于 2019-12-06 01:22:37
My question is why are there 6T states in opcode fetch of the CALL instruction while there are 4 for other instructions in 8085 microprocessor. I have searched a lot but didn't find any satisfactory answer. Here: http://www.edaboard.com/thread201650.html it says that it has something to do with dual addressing modes being used in case of CALL. But doesn't really explain why 6T states. Any idea? EDIT This question arose when I came to know that CALL takes 18 T-states. According to my calculations it should be: 4(for opcode fetch) + 3 + 3 (two memory reads to read the subroutine address) + 3 + 3

Can a java module call a c module?

别说谁变了你拦得住时间么 提交于 2019-12-06 01:08:11
Just out of interest , is it possible to call a C module from a java module ? If so , how to do that ? yes you can use Java Native Interface to do this: Yes, you can do it. Whether you should do it is another matter. On the pro side: Calling C libraries from Java will avoid the need to recode the libraries in Java (but see below). For some computational intensive algorithms, a well-written C implementation may be faster than an equivalently well-written Java version. Some operating system specific operations cannot be implemented in pure Java. On the con side: There is a greater overhead in

Qt4: How to call JavaScript functions in a page from C++ via QtWebkit?

喜欢而已 提交于 2019-12-06 00:37:55
问题 I'm trying to write a simple log viewer using Qt4's WebKit port/implementation. My HTML code looks like this: http://pastie.org/613296 More specifically, I'm trying to find out how to call the add_message() function which is defined in the <script> section in the HTML document from my C++ code. // Doesn't work: QWebElement targetElement = chatView->page()->mainFrame()->findFirstElement("head").firstChild("script"); // Function is not included, either... qDebug() << targetElement.tagName() <<

Why is there no need for `call` to return from called batch script which is involved in a pipe?

坚强是说给别人听的谎言 提交于 2019-12-06 00:20:56
问题 Supposing there is a batch file (caller) which executes another batch file (callee), the call command needs to be used in order to return to the caller after the callee finishes execution. Here is an example: caller.bat : echo Calling another script... call callee.bat echo Returned from callee... callee.bat (in the same location) : echo Being called from caller... The output will be this (omitting the command echos), showing that execution returned as expected: Calling another script... Being

jquery ajax call not working?! firefox or xss problem?

核能气质少年 提交于 2019-12-05 23:55:57
My problem is: in firefox i got no response. in ie it worked fine. I want a ajax call to a local script getting some information in plain text or something else. but it won't work. I think cross scripting should not a problem at this point or? the javascript code is simple: var targetUrl = "http://localhost/jQueryProxy.php"; var parameters = ""; // later $.ajax({ type: "GET", async: true, url: targetUrl, data: parameters, success: function(param1, param2){ alert(param1); } }); and the php code too: <?php header('Content-type: text/xml')); echo "test"; ?> Kobi try var targetUrl = "/jQueryProxy

The return address in the assembly code

一笑奈何 提交于 2019-12-05 21:38:24
The assembly code goes like this: call next next: popl %eax I thought after call next , the return address will be pushed onto the stack, right? But in the above code, what's the return address? After that code executes %eax will have the address of label "next" the call branches to the target which happens to be the next sequential instruction and pushes the return address, which is always the address of the next sequential instruction the popl will pop the return address from the stack onto %eax register The net effect is %eax points to label "next" It's the address of the instruction

UWP use skype to call number

柔情痞子 提交于 2019-12-05 12:51:27
I want my c# UWP App to support calling numbers. When I'm on W10 mobile I want it to use W10 PhoneCall API normal (this is working) Windows.ApplicationModel.Calls.PhoneCallManager.ShowPhoneCallUI(number, name); but on W10 Desktop/PC I won't have a GSM provider, so I thought, maybe use skype to call the number, the user pressed. Is that possible via UWP? Maybe similar like opening websites: await Windows.System.Launcher.LaunchUriAsync(new Uri(website)); Yes, it's possible and you're right about using Launch the default app for a URI to open Skype from your app. For the question what Uri can we