User:Pedro Oval/Mono code memory usage
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Here are some memory usage results I've obtained with Mono, for common language constructs. They were obtained by replicating each line to test 512 times and looking at llGetFreeMemory right at the beginning of the script.
Results for local integer variables x, y, and local float variables f, g:
| Construct | Bytes used | Comments |
|---|---|---|
| ; | 0 | |
| {} | 0 | |
| return | 1 | Tested in event and without arguments |
| x | 2 | |
| (x) | 2 | |
| (integer)x | 2 | |
| (float)x | 3 | |
| f | 2 | |
| (float)f | 2 | |
| (integer)f | 7 | |
| -x | 3 | |
| ~x | 3 | |
| !x | 5 | |
| --x | 6 | Pre-decrement (same bytes as x=~-x) |
| ++x | 6 | Pre-increment (same bytes as x=-~x) |
| x-- | 8 | Post-decrement |
| x++ | 8 | Post-increment |
| x=y | 4 | Assignment |
| x==y | 5 | Comparison |
| f=x | 5 | Implicit conversion from integer to float |
| f=(float)x | 5 | Explicit conversion from integer to float |
| x!=y | 8 | Same bytes as !(x==y) |
| x*y | 4 | |
| x/y | 8 | |
| x%y | 8 | Modulo |
| x+y | 4 | |
| x-y | 8 | !?!? |
| x+-y | 5 | Saves 3 bytes vs. a subtraction! |
| x*y | 4 | |
| x/y | 8 | |
| x&y | 4 | Bitwise |
| x&&y | 13 | Logical |
| x|y | 4 | Bitwise |
| x||y | 10 | Logical |
| x^y | 4 | Bitwise |
| x<<y | 8 | Bitwise shift left (can be simulated with mult in most cases) |
| x>>y | 8 | Bitwise shift right |
| x<y | 5 | |
| x>y | 5 | |
| x<=y | 8 | Same bytes as !(x>y) |
| x>=y | 8 | Same bytes as !(x<y) |
| x+=y | 6 | Same bytes as x=x+y |
| x-=y | 10 | Same bytes as x=x-y |
| x+=-y | 7 | Saves 3 bytes vs x-=y |
| x*=y | 6 | Same as x=x*y |
| x/=y | 10 | Same as x=x/y |
| x%=y | 10 | Same as x=x%y |
| if(x); | 6 | |
| if(x); else; | 11 |