Asuka Neely at 03:28, 26 December 2007

2007-12-26T03:28:46Z

Asuka Neely at 01:35, 26 December 2007

2007-12-26T01:35:36Z

← Older revision		Revision as of 18:35, 25 December 2007
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	~~<div style="float:right;">__TOC__</div>~~
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	'''現在翻訳作業中です...'''（これは翻訳作業者が、作業中であることを明示するために挿入した一文です。）		'''現在翻訳作業中です...'''（これは翻訳作業者が、作業中であることを明示するために挿入した一文です。）
	=スクリプト・メモリー=		=スクリプト・メモリー=

Asuka Neely at 01:32, 26 December 2007

2007-12-26T01:32:04Z

← Older revision		Revision as of 18:32, 25 December 2007
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			{{Multi-lang}}
			<div style="float:right;">__TOC__</div>
	{{LSL Header/ja}}{{RightToc}}		{{LSL Header/ja}}{{RightToc}}
			'''現在翻訳作業中です...'''（これは翻訳作業者が、作業中であることを明示するために挿入した一文です。）
	=スクリプト・メモリー=		=スクリプト・メモリー=
	All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and the memory usage.		All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and the memory usage.

Coffee Mills: New page: {{LSL Header/ja}}{{RightToc}} =スクリプト・メモリー= All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and th...

2007-12-12T09:02:08Z

New page: {{LSL Header/ja}}{{RightToc}} =スクリプト・メモリー= All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and th...

New page

{{LSL Header/ja}}{{RightToc}}

=スクリプト・メモリー=
All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and the memory usage.

All of the following data was collected through [[llGetFreeMemory]](). As the LSL compiler is not a simple program, the data below may not be 100% accurate, in fact, much of it is wrong and can use corrections.

There are still many bits that can be improved upon, and many more that can be taken into more detail. If anyone has any free time and doesn't know what to do, play around with the memory usage for different functions. A list of needed updates can be seen at the end of the page.

=変数=
==変数をグローバルで宣言する==
===Variable Memory Usage===
<pre>
integer 10
float 10
string 18 + 1 per character
key 18 + 1 per character
vector 18
rotation 22
list 21 + list memory usage
</pre>
===List Memory Usage===
<pre>
integer 15
float 15
string 12 + 1 per character
key 12 + 1 per character
vector 23
rotation 27
list Lists Can Not Contain Lists
</pre>
==default stateの内部で変数を宣言する==
===Variable Memory Usage===
<pre>
integer 15
float 15
string 12 + 1 per character
key 12 + 1 per character
vector 31
rotation 39
list 15 + list memory usage
</pre>
===List Memory Usage===
<pre>
integer 7
float 7
string 4 + 1 per character
key 4 + 1 per character
vector 23
rotation 30
list Lists Can Not Contain Lists
</pre>
==Simply stating values==
===Putting a Value onto the Stack===
<pre>
Integers 1 + 4 bytes for the value
Float 1 + 4 bytes for the value
String 1 + bytes for characters + 1 byte for null
Key 1 + bytes for characters + 1 byte for null
Vector 1 + 3 * float cost
Rotation 1 + 4 * float cost
List 1 + 4 for list length + list memory usage
</pre>
To remove a value from the stack costs 1 byte.

===List Memory Usage===
<pre>
Integers 7
Float 7
String 4 + 1 per character
Key 4 + 1 per character
Vector 23
Rotation 30
list Lists Can Not Contain Lists
</pre>
==定数==
All integer constants use 6 bytes of memory.
===Other Constants===
<pre>
ZERO_VECTOR 16
ZERO_ROTATION 21
NULL_KEY 39
</pre>
==Extras==
6 bytes to reference variables
==例==
<pre>
integer i; //10 bytes

default {
state_entry() {
list l = ["Testing", "This"] //15 (list) + 15 (string) + 8 (string)
}
}
</pre>
=関数=
==関数の宣言==
Functions require 16 bytes to be created, with 3 bytes per paramater, plus the return type.
===Return Types===
<pre>
integer 4
float 4
string 4
key 4
vector 20
rotation 27
list 4
</pre>
==関数内の変数の宣言==
===Variable Memory Usage===
<pre>
integer 11
float 11
string 8 + 1 per character
key 8 + 1 per character
vector 19
rotation 23
list 11 + list memory usage
</pre>
===List Memory Usage===
<pre>
integer 7
float 7
string 4 + 1 per character
key 4 + 1 per character
vector 23
rotation 30
list Lists Can Not Contain Lists
</pre>
==関数呼び出し==
21 bytes to call a function with no return<br>
21 bytes to call a function with any return + type of return<br>
Subtract number of parameters entered
===Return Types===
integer 2
float 2
string 10 + 1 per character returned
key 10 + 1 per character returned
vector 2
rotation 2
list 18 + list memory usage
==例==
<pre>
list f() { //16 (function) + 4 (return)
list ret = [0]; //11 (list) + 7 (integer)
return ret; 6 (list)
}
</pre>
<pre>
string f() {
return "";
}

default {
state_entry() {
f(); //21 (call to f) + 10 (returns string)
}
}
</pre>
=演算子=
==List of Operators==
<pre>
+ 1
- 1
* 1
/ 1
% 1
& 0
| 0
^ 0
! 0
>> 0
<< 0
~ 1
== 1
<= 1
< 1
>= 1
> 1
!= 1
</pre>
==Assignment==
Assigning values to variables takes as many bytes as used minus one.
===Examples===
<pre>
string s; //12 bytes
s; //6 bytes
""; //3 bytes (see below)
s = ""; //8 (6 (string) + 3 (null string) - 1) bytes
</pre>
However...
<pre>
string s = ""; //12 bytes
</pre>
<pre>
integer i; //15 bytes
i = i + 1 // 6 bytes (integer) + 6 bytes (integer) + 6 bytes (1) + 1 byte (addition) - 1 byte (assignment)
</pre>
==Statements==
<pre>
if 6
while 11
for 11
do 6
jump 5
@ 0
state 5
</pre>
===Examples===
<pre>
if (5 < 10) { // 6 (if) + 6 (integer) + 6 (integer) + 1 (compare)
//Do something here
}
</pre>
<pre>
while (1 < 2 & 3 < 4) { // 11 (while) + 4*6 (4 integers) + 2 (2 compares)
//Do something here
}
</pre>
==Typecasting==
<pre>
integer 10
float 10
string 10
key 10
vector 10
rotation 10
list 25
</pre>
==States==
14 bytes for any event in a state + 1 for each parameter
17 bytes to create a new state
=Needed Updates=
Several updates are needed for this page, the most needed are listed below:
* Verification of all data
* Clarification of explanations
* Investigations into how the functions work
** Calling of functions
** How return types effect the return
* In the following code, the call to llGetFreeMemory() returns a different value. How is it affected? Why?
<pre>
default {
state_entry() {
llOwnerSay((string)llGetFreeMemory());
list l = ["", "", "", ""];
llOwnerSay((string)llGetFreeMemory());
}
}

LSL Script Memory/ja - Revision history

Asuka Neely at 03:28, 26 December 2007

Asuka Neely at 01:35, 26 December 2007

Asuka Neely at 01:32, 26 December 2007

Coffee Mills: New page: {{LSL Header/ja}}{{RightToc}} =スクリプト・メモリー= All scripts in LSL start out with 16 kilobytes of memory, and that memory is used up rapidly. Below is a list of code and th...