Axe Q&A

[C0deH4cker]

 

I understand it sort of now that youve explained it, but i must say that im shocked that you can come up with code like this.

[Freyaday]

* Freyaday is in Awe

[chattahippie]

Can you optimize:

Code: Select All | Copy To Clipboard

1 2 3 4

X*4->Y !If Y=4 .stuff End

to:

Code: Select All | Copy To Clipboard

1 2 3 4

X*4->Y !If =4 .stuff End

[Runer112]

Yes, that is a perfectly valid optimization. However, with the introduction of the peephole optimizer in Axe 1.0, Axe will perform simple optimizations like that automatically so you don't have to.

[Darl181]

Is Axe supposed to check for pairing of types of parenthesis?  Because I had a bug because of an on-calc typo of something like If {A}=2 or ({A}=5) or ((A}=8) and it compiled without error.

[Quigibo]

Yeah this is more of a "Be lazy on purpose to make the parsing simpler with less error checking".  The right parentheis ) and } are identical in nearly every situation.  However, left parenthesis ( and { are obviously different.  When I said nearly, sometimes Axe checks for a specific kind of parenthesis so don't abuse this.  Also I could add error checking in later versions if there is ever ambiguity.

EDIT: For your specific example, the left parenthesis was the typo so it didn't work the way I presume you expected it to.

[shmibs]

is there any way to draw a single column of pixels that's faster than drawing the same column with Pt-On(?

[Hayleia]

is there any way to draw a single column of pixels that's faster than drawing the same column with Pt-On(?

Maybe with a rectangle like Rect(X,0,96,1) or something (and if I didn't do any mistake) ?
Or maybe I didn't understand the question right -.-°

Also, I can't remember but do Bitmap clip ? Nvm, it does since 1.1.0

[turiqwalrus]

well, bitmap wouldn't help as much because we want is to be fast

and yes, I believe so.

[Hayleia]

Yes, but it is said here

Redesigned Bitmap() command is clipped, faster, and works with any buffer.

So it should be ok

[jacobly]

is there any way to draw a single column of pixels that's faster than drawing the same column with Pt-On(?

If you already use Rect( somewhere else, then you should use Rect(X,0,+1,63).
If you already use Line( somewhere else, then you should use Line(X,0,X,63).
If you use both, then I guess the above Rect( command is slightly smaller.
Also, it seems that Rect( is 47 cycles faster (about how long it takes to subtract two variables).

[Runer112]

Rect() is a good amount faster at drawing horizontal or vertical lines than Line(). Pretty much, you'd only not want to use Rect() if speed is not critically important and you already use Line() in your program, but not Rect(). This would save some size by not having to include the 113-byte rectangle routine.

Method		Speed (cycles)		Code size (bytes)		Routine size (bytes)
Rect(X, and 0,+1, or 255)		3315		14		113
Line(X, and 0,X,63)		6094		17		140

[zero44]

I already asked this question in another topic, but how can we simply use the port commands to easily send and receive datas to/from  another calculator ?
And does it works between two different types of calcs, like 83+ & 84+SE ?

[Builderboy]

What kind of data are we talking about?  Axe has built in Send() and Get() commands for sending bytes over the link port, but anything that was restricted to only using Port() to send bytes would basically be rewriting those commands.  Why do you need to use the Port command instead of using the Send() and Get() commands? 

Oh and the link port communication works across all Ti83+ through Ti84+SE if I remember correctly.

[Darl181]

So I want to use SMC to store high scores directly into a program, in a way that they'll remain after writeback.  How many bytes into the program would I write to not be editing the wrong part?
Or would simply writing to a static pointer i.e. GDB1 work?