Well, it creates a possiblity of crashing.  Maybe if you use iy without restoring it and then change a mode settings (or something like that), then your calculator will probably either crash or just not function correctly.

When you say leo do you mean leofox??
And when you say EFA I am guessing something with the release data??

So I will tell you this the first release should be within 6 months or less. Somewhere around there for me to get everything I want in there for now. And then I can begin additions. The main thing is library development that takes long. I am trying to make evreything as optimized as possible and that means writing multiple routines and finding the tstates and then testing and debugging and so on... and then it makes it to the final library!

Also I am writing an html documentation along with it.

I've found that the best option is to simply back it up in the stack.  It is the same number of bytes each way, since ld iy,xxxx is 4 bytes, and push iy/pop iy are 2 bytes each.  Also, then it allows the user to store iy for something else (if they were in an IM 2 ISR, they might not want iy to be set back to the flags).

Suggestion to Insanity: Look at the date. :lol:

Nice one Halifax, but it was a bit far-fetched.

Look at the bottom right, it says "Windows Vista Evaluation Copy". Methinks you took a picture from the internet and used GIMP to change it.

Or if this isn't true, post another picture tomorrow when it isn't April 1st.

Ok I am sorry to say you guys made me work very very hard on this. It took me about an hour to edit that photo with Windows Paint. Gah but I have to give it to you guys for figuring it out lol. April Fools!!