So, I have been trying to use the OS routine InsertMem, and it doesn't seem to be behaving like I would like it to. In theory, does it insert extra bytes at the given pointer, expanding something like this:


Code:


To this?:


Code:


If this is called?:


Code:


While this is not really a working example, this is the problem that I have been having. How does the InsertMem routine behave? Does it simply return a pointer to free ram, or something else along those lines? Thanks!

InsertMem should only be used at addresses >= UserMem. It works by pushing all of the user variables in RAM the specified number of bytes higher, thus leaving a gap that you can use. If you specify an address in the middle or at the end of a variable, you can use that to enlarge the variable, as long as you remember to update its size words. You can also use it to give yourself temporary space to use, as long as you _DelMem afterwards. What are you trying to use it for?

EDIT: Don't even bother looking at this. It seems like it did work. Silly me. Now I feel like one of those people who post lengthy questions when there is nothing wrong in the first place. Take a look below.

Okay, this may be kind of long, but it is not too bad. So, here's the code: (All other routines not here work fine). I would like to add a certain number of bytes to an AppVar depending on the offset in the AppVar, which is stored in (LevelPTR):
(PackPTR) points to the start of the data for the AppVar.


Code:


Now, when I run it through the first time to see all of the values of the variables, I get this:



This corresponds to this in memory:



Now, when I press [2ND] to save the new data, I get this on the calculator:



But in memory, it looks like this:



For some reason, it only updated the size bytes, and did not insert the memory where I wanted it to be. Any ideas on why this is happening? Could be quite a challenge to figure this out... Thanks!

EDIT: Scroll down a little farther...

At least you wrote a thorough post when asking your question, which I think deserves to be acknowledged. And as discussed on IRC, _InsertMem doesn't initialize the bytes inserted to anything; that is up to you.