April 2007 - Darwin-dev - lists.apple.com

Re: Wake up display?
by David Alger 30 Apr '07

30 Apr '07

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Re: Structs pushed on stack backwards?
by Uli Kusterer 30 Apr '07

30 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Um, it is in its proper order. The stack grows backwards, remember. Thanks. Now I really feel stupid. :-/ Cheers, -- M. Uli Kusterer http://www.zathras.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Am 30.04.2007 um 01:39 schrieb Jeff Laing: If you take the address of the x on the stack, its pointing to x followed by y in ascending memory address order... This email sent to site_archiver(a)lists.apple.com

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Wake up display?
by Andrew James 30 Apr '07

30 Apr '07

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RE: Structs pushed on stack backwards?
by Jeff Laing 29 Apr '07

29 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com > <http://developer.apple.com/documentation/DeveloperTools/Conceptual/ > LowLevelABI/Articles/IA32.html> > > has a diagram in "Passing Structures and Vectors" that shows that > small structs get passed on the stack backwards. I.e., I have a > structure > > struct PseudoPoint { float x; float y; }; > > and it gets passed as a parameter on the stack as: > > y > x > > Wouldn't it be easier to leave everything in its proper order? Um, it is in its proper order. The stack grows backwards, remember. If you take the address of the x on the stack, its pointing to x followed by y in ascending memory address order... _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Structs pushed on stack backwards?
by Uli Kusterer 29 Apr '07

29 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Cheers, -- M. Uli Kusterer http://www.zathras.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Am 29.04.2007 um 21:15 schrieb Eric Albert: Actually, it's easier to have it pushed this way. Here's one reason: x is at offset 0 in the struct and y is at offset 4. When code references this struct, it'll reference it from the base address. If that's, say, %eax, x ends up as 0(%eax) and y is 4(%eax). Right! Sorry for that stupid question. That, of course, makes perfect sense. That way you can use the same offset tables for everything and save yourself a little maths. This email sent to site_archiver(a)lists.apple.com

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Re: Structs pushed on stack backwards?
by Eric Albert 29 Apr '07

29 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Apr 29, 2007, at 7:18 AM, Uli Kusterer wrote: struct PseudoPoint { float x; float y; }; and it gets passed as a parameter on the stack as: y x -Eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I just had some time to get back to my current recreational programming task: Writing a little compiler on OS X. Now, I've got most of it working, but one thing confuses me a bit: <http://developer.apple.com/documentation/DeveloperTools/Conceptual/ LowLevelABI/Articles/IA32.html> has a diagram in "Passing Structures and Vectors" that shows that small structs get passed on the stack backwards. I.e., I have a structure Wouldn't it be easier to leave everything in its proper order? What's the rationale behind this? Actually, it's easier to have it pushed this way. Here's one reason: x is at offset 0 in the struct and y is at offset 4. When code references this struct, it'll reference it from the base address. If that's, say, %eax, x ends up as 0(%eax) and y is 4(%eax). This email sent to site_archiver(a)lists.apple.com

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Structs pushed on stack backwards?
by Uli Kusterer 29 Apr '07

29 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, struct PseudoPoint { float x; float y; }; and it gets passed as a parameter on the stack as: y x Any clues would be greatly appreciated. Cheers, -- M. Uli Kusterer http://www.zathras.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I just had some time to get back to my current recreational programming task: Writing a little compiler on OS X. Now, I've got most of it working, but one thing confuses me a bit: <http://developer.apple.com/documentation/DeveloperTools/Conceptual/ LowLevelABI/Articles/IA32.html> has a diagram in "Passing Structures and Vectors" that shows that small structs get passed on the stack backwards. I.e., I have a structure Wouldn't it be easier to leave everything in its proper order? What's the rationale behind this? This email sent to site_archiver(a)lists.apple.com

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Re: default mouse pointer position?
by Shawn Erickson 26 Apr '07

26 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=mWFPwA7L2mXY3LeTIdukw5AUqt3RyWG3y8UixcIoSzGd1B0FpVrg3B9BhT3AmU+QmwK9dnF5b13WkOnvrjT6ZlpWCbKYIvqOm91MXNR24nTr8awBilRzlJcalQNHVmMV1o7GoJoGzPdjt3ATwzQMuYSkRBDMLVy8rsV/LD8VtqY= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=FhTf8qCU52RqU2rX99DcnkO53JLW0sUfrTEMD0KsNb+NBY8qH9Ay9rHWTeqM3mGo/TqnGYhR+czu8XD9iJoO/fTkB1Ux/TEQ2qItbsz5mMh1SGxEJ9DIRzKD2Ess873b58VwmEKAGxVAqVLrxlBgiXmEPXL5werM5lCNKoVxmQ0= Hello, all ... Is there a way that I can specify the default mouse pointer position on Tiger when no mouse is plugged in? Here is the context: i'm developing a kiosk app that will run on a Mac Mini, and no keyboard or mouse will normally be plugged into the unit. This kiosk app plays video (among other things) using VLC in fullscreen mode. However, when there is no mouse plugged in, the mouse pointer position is in the upper left corner, and when VLC runs in fullscreen mode, if the mouse is along the top of the screen (including the upper left), the VLC menubar appears, which is the last thing I want. If OSX were to put the pointer somewhere else when the Mac Mini boots up with no mouse attached, everything would be fine. I looked around /Library for a plist file for the mouse, but couldn't find anything. Is there a way to tell OSX that, when there is no mouse plugged in, to set the default pointer position somewhere else rather than the upper left corner? Review the following... "Controlling the Mouse Cursor" <http://developer.apple.com/documentation/GraphicsImaging/Reference/Quartz_S…> -Shawn _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 4/25/07, jmzorko(a)mac.com <jmzorko(a)mac.com> wrote: This email sent to site_archiver(a)lists.apple.com

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default mouse pointer position?
by jmzorko＠mac.com 26 Apr '07

26 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, all ... Regards, John Falling You - exploring the beauty of voice and sound http://www.fallingyou.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Is there a way that I can specify the default mouse pointer position on Tiger when no mouse is plugged in? Here is the context: i'm developing a kiosk app that will run on a Mac Mini, and no keyboard or mouse will normally be plugged into the unit. This kiosk app plays video (among other things) using VLC in fullscreen mode. However, when there is no mouse plugged in, the mouse pointer position is in the upper left corner, and when VLC runs in fullscreen mode, if the mouse is along the top of the screen (including the upper left), the VLC menubar appears, which is the last thing I want. If OSX were to put the pointer somewhere else when the Mac Mini boots up with no mouse attached, everything would be fine. I looked around /Library for a plist file for the mouse, but couldn't find anything. Is there a way to tell OSX that, when there is no mouse plugged in, to set the default pointer position somewhere else rather than the upper left corner? This email sent to site_archiver(a)lists.apple.com

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Re: filepath-on-device to BSD-devpath-of-that-device
by Garth Cummings 25 Apr '07

25 Apr '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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