Name: [1836] Neil Dickson
Member: 87 months
Authored: 10 videos
Description: Hi, I'm a performance optimization enthusiast with an interest for many sorts of tough challenges. I've started Code Cortex, a group working to make software performance easier to improve. My sites are: http://www.neildickson.com/ http://www.codecortex.com/ ...

Assembly Language Tutorial: Episode 5: Identifying Cases [ID:1610] (7/7)

in series: Assembly Language Tutorial

video tutorial by Neil Dickson, added 09/09

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This video looks more closely at an example of doing different things under different conditions.

Specifically, we identify pixels that look orange and pixels that look red in our map photo to make the orange path and the red "You Are Here" sign stand out clearly.

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  • Published: 62 months ago

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Great tutorial! I appreciate it.

Thanks

My best regards

Ihab


3. anonymous Mon, 09 Nov 2009 12:00

At first, the videos seemed a bit weird and I didn't quite get where you are heading with everything, but after the last two videos it's been getting quite interesting to follow! I hope you are making more!


Hi! and thanks!

I agree that the concept in this one wasn't as well explained as other ones. If you've got an if statement, like "if (condition) { doSomething(); }", the idea I forgot to explain is that it's the same as "if (!condition) { goto Skipped; } doSomething(); Skipped:" In a nutshell, in assembly, you skip over the code if the opposite condition is true.

As for device I/O, I'll eventually make an OS development tutorial, but it's quite advanced, and not something for the faint of heart. As I found out, you can accidentally wipe out the content your harddrive pretty easily. I wiped out my partition table a couple months ago and spent maybe 10 hours recovering it. :(

Inventor IDE should work on Linux, though it'll build Windows executables, since I don't yet have support for ELF file output. I'd really like to get this and Mach-O format working, 'cause then it could assemble the same code for Windows, Linux, or Mac with the click of a button. I've tried the image program in WINE, though it only half-worked half of the time, and different parts would succeed when it half-worked, hehe. If you try it out, please let me know whether it works for you. :)


finally you are back

keep up the great work

your tutorials are awesome

you are a little too fast

so consider slowing down and explain the concepts a bit more

also how about a tutorial teaching getting input from a device and similarly output to a device in assembly

do i ask for too much

probably

anyway keep up the excellent work

one last thing can i use inventor in linux


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