Share your cool little axe parser routines here! Or big too.
I currently don't have any, but I was wondering if anybody could come up with a good line drawing one (from point a to b).
I'll put up some that I come up with later too I guess.

Mmm i'm thinking it would be in Axe code, just to help out people in the future

I'll see if i can get a line drawing code whipped up, sounds like a good challenge ^^

Haha alright then

Maybe I'll upload my very primitive and integer based Sin routine

Axe Parser code

yeah, I know line will be included later, but now I can't stop trying to figure out how to do it with only pxl-on()

Get the slope from the 2 points and pixel on points in line between the 2 points. Basically use y=mx+b equation.
This is how it can be done in assembly. There is a tutorial for this in Patagay assembly tutorial.
By using sine and cosine is also possible...

hmm, but how would you do that with no decimal places?

If you want 1 decimal place then use that number times 10 and the least significant digit is your decimal place.
Example of to show what the previous phrase means:
.1 turns 1
1.9 turns 19

Now imagine you want to multiply A and B where A is .1 (10) and B=1.9 (19).
You do (A*B)/100.
Note that these expressions are equivalent: .1*1.9 =  ((1/10) * (19/10)) / 100

Wasn't decimal support going to arrive in future versions of Axe? I remember Quigibo telling me on Yahoo that some variables would be reserved for integers while some others would be reserved for floating points...

Check this out:

http://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm

Its probably what I'll be using, it only requires addition and bit-shifting, no floats.

Check this out:

http://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm

Its probably what I'll be using, it only requires addition and bit-shifting, no floats.

There are already two excellent implementations in z80 of that algorithm by James Montelongo and quarnos.
To download the James Montelongo one see his ticalc profile. For quarnos see MaxCoderz forum.