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 Robotics / RCX / legOS / 3418 (-10)
  Re: Question about mm.C in BrickOS
 
Thanks to both of you, I was pretty close to my understanding of it, but I did not know about the "new block creation behind the current block" but it makes sense now, if I have any other question (I am sure I will) I will def. ask. Thanks again, (...) (21 years ago, 14-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: USB/Serial Converter
 
Somewhere on the LEGO site it says that Serial > USB is not compatable -- If you must, why not just buy a USB IR tower from PITSCO LEGODacta for $30? If you have the SDK 2.5, or even the SDK 2.0, it comes with the driver for the USB tower (in the (...) (21 years ago, 14-Aug-03, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
 
  Re: BrickOS on Mac OS X
 
Man, this is fantastic. Since moving over to OS X about a year and a half ago, I've been ignoring my RCX (retired the tired/crash prone PC forever!! Running Linux now though) and haven't played with it for lack of a development environment for OS X. (...) (21 years ago, 13-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: Question about mm.C in BrickOS
 
Hi, (...) Ptr points to the length byte of the first free block (...) *(ptr-1) actually is MM_FREE and is now set to the callers id. (...) Now we can do two things: We could grab all memory we found in this block or we could allocate only the memory (...) (21 years ago, 13-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: Question about mm.C in BrickOS
 
(...) <snip> (...) I've never looked at brickOS code, but here is my take: By the time you hit line 2, you've found a free block that is big enough. Line 2 sets the owner of the block. Line 5 decides if the block is oversized enough to split. Line 6 (...) (21 years ago, 13-Aug-03, to lugnet.robotics.rcx.legos)
 
  Question about mm.C in BrickOS
 
Hey My Senior Preoject where I update BrickOS is slowly taking shape (I am actually trying to do some now, but time is very limited). This project I am editing the Memory Managment Alg used by BrickOS. the first one I am going to add is Next Fit, it (...) (21 years ago, 13-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: BrickOS installation with WinME and Cygnus problems
 
(...) If you download the packages you can install from the previously downloaded packages without ever having to go to a mirror. In theory, at least, you shouldn't have to go back to the web unless you want a newer version of one or more of the (...) (21 years ago, 12-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: BrickOS installation with WinME and Cygnus problems
 
(...) O.K. I will try a re-install of Cygwin, although I have re-installed at least four times previously. As I say, I get a little farther each time. Maybe this time I can find all the packages at one mirror. As Ed does, I also download and install (...) (21 years ago, 12-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: BrickOS installation with WinME and Cygnus problems
 
(...) I am inclined to agree with Ed. I think your cygwin install is fouled up somehow. Can you check the version of the cygwin1.dll in your cygwin bin directory? I'm running 1.3.12-1 (which is a fairly old version). John Hansen (21 years ago, 11-Aug-03, to lugnet.robotics.rcx.legos)
 
  Re: BrickOS installation with WinME and Cygnus problems
 
(...) Tom, Max, I have seen the "Permission Denied" message before. I ussually get this error message after I have done some upgrading Cygwin packages or installling new parts, etc. The best answer I have (and the one I use) is to reinstall Cygwin. (...) (21 years ago, 9-Aug-03, to lugnet.robotics.rcx.legos)


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