Author Topic: static vars (Read 9030 times)

bored_student · « **on:** October 31, 2012, 12:22:17 pm »

I wanted to make my program code more clear.
So I decided to use static vars that replace some L1+... commands:
example:

Code: [Select]

L1+12 -> GDB0XVAL
L1+14 -> GDB0YVAL
...
X -> {GDB0XVAL}R
Y -> {GDB0YVAL}R

Is this slower than this:

Code: [Select]

X -> {L1+12}R
Y -> {L1+14}R

or is it the same after compiling

Eeems · « **Reply #1 on:** October 31, 2012, 12:29:58 pm »

If it is a static var then I would assume that it would be the same speed. Static variables should be replaced by the actual value on compile if it's anything like static variables in other languages.

Hayleia · « **Reply #2 on:** October 31, 2012, 12:49:52 pm »

If you want to make it even clearer, you can do that:
L1+12→°XVAL L1+14→°YVAL ... X→XVAL Y→YVAL
What you did there is declare two new custom variables, XVAL and YVAL, whose bytes are located at L1+12 and L1+14

edit
note that the ° is the degree symbol in Angle (2nd Apps).

bored_student · « **Reply #3 on:** October 31, 2012, 01:03:40 pm »

thank you a lot

I have never read that you can do something like that

So I can easily make new vars.
How many characters can I use to name them and
from where do you know such things?

Eeems · « **Reply #4 on:** October 31, 2012, 01:24:25 pm »

You might find reading the documents here useful: http://axe.eeems.ca/

Hayleia · « **Reply #5 on:** October 31, 2012, 02:39:43 pm »

Quote from: bored_student on October 31, 2012, 01:03:40 pm

How many characters can I use to name them and
from where do you know such things?

You can have up to 5 characters. I think the first one has to be an uppercase letter but maybe I am wrong.
And I know this kind of things by asking questions on this awesome website that is Omnimaga

bored_student · « **Reply #6 on:** November 01, 2012, 02:53:44 pm »

Quote from: Eeems on October 31, 2012, 01:24:25 pm

You might find reading the documents here useful: http://axe.eeems.ca/

This are the files included in the Axe download but I cant find something like
const -> °Var

however now I know it
thank you both you have helped me a lot

shmibs · « **Reply #7 on:** November 01, 2012, 06:31:35 pm »

if you are storing the value to a variable then i am fairly certain it will be slower. i think the axe compiler simplifies L1+whatever to a single, in-line constant value, while accessing the other will first store the value to a different position in RAM during execution and then have to recall that value from the position in RAM when it is calling the value later.

squidgetx · « **Reply #8 on:** November 01, 2012, 08:48:49 pm »

The custom variable method was created to make creating custom variables relatively easily.
x->{L1+2}^r is the same speed and size as L1+2->^oVAR : x->VAR

Note that you can abuse the custom variable system to create named constants, similar to finals in java, only you can actually notice the speed difference. For example, 32->^oMapW allows you to use ^oMapW in place of 32, anywhere in your code. Useful for debugging and clarity

Author Topic: static vars (Read 9030 times)

bored_student

static vars

Eeems

Re: static vars

Hayleia

Re: static vars

bored_student

Re: static vars

Eeems

Re: static vars

Hayleia

Re: static vars

bored_student

Re: static vars

shmibs

Re: static vars

squidgetx

Re: static vars