Author Topic: The Optimization Compilation  (Read 95869 times)

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Offline Happybobjr

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Re: The Optimization Compilation
« Reply #60 on: February 05, 2011, 10:05:32 pm »
that would explain the random pixels remaining in one of my games
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Offline calcdude84se

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Re: The Optimization Compilation
« Reply #61 on: February 05, 2011, 10:15:08 pm »
Ah, okay. That would make my inserted line "A*8-I->G" then.
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Offline Runer112

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Re: The Optimization Compilation
« Reply #62 on: February 05, 2011, 11:46:14 pm »
Here's the fastest code I could come up with. It uses optimized loop structures and even more pre-calculation.

Also, did you mean to use B as the y value in your code squidgetx? Because looping from 0-11 wouldn't make much sense for y, so I changed it. :P

Code: (Code) [Select]
Y and ᴇF8*2+(X/2/2/2)+L₁→D
⁻(X^8)→I
⁻(Y^8)→J
12→B
Lbl LB
  64
  Lbl LA
    →A
    If {*2+B+D}
      →C
      Pt-On(B*8+I,A+J,C*8+Pic0)
    End
  If A
    -8
    Goto LA
  End
If {°B-1}ʳ
  -256→{°B-1}ʳ
  Goto LB
End

   
Code: (Comments) [Select]
Tilemap offset; optimized version of Y/8*16+(X/8)+L₁→D
X offset;
Y offset
For(B,12,0,⁻1)

For(A,64,0,⁻8)


If tile != 0
Store tile value
Display tile

Second part of For(A) loop



Second part of For(B) loop
Utilizes the fact that the second byte of A is 0 and -256 is faster than -1




« Last Edit: February 05, 2011, 11:54:04 pm by Runer112 »

Offline Deep Toaster

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Re: The Optimization Compilation
« Reply #63 on: February 05, 2011, 11:48:39 pm »
Epic. I love return'd value hacks :D




Offline calcdude84se

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Re: The Optimization Compilation
« Reply #64 on: February 05, 2011, 11:49:38 pm »
:crazy: That's amazing, Runer. Do you always come up with code like this? :P
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Offline Runer112

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Re: The Optimization Compilation
« Reply #65 on: February 05, 2011, 11:53:46 pm »
Epic. I love return'd value hacks :D

My favorite Axe optimization trick! ;D


:crazy: That's amazing, Runer. Do you always come up with code like this? :P

I am so familiar with using optimized loops that I pretty much automatically come up with maximally optimized loops. ;) The rest of the stuff, though, just takes a bit of thinking and comparing potential command sizes/speeds. This file I assembled a while ago actually helps a good deal when assessing options.

Offline Deep Toaster

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Re: The Optimization Compilation
« Reply #66 on: February 06, 2011, 12:04:09 am »
Epic. I love return'd value hacks :D

My favorite Axe optimization trick! ;D

Pretty much the Axe opt trick. Everything else builds on it :D




Offline Quigibo

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Re: The Optimization Compilation
« Reply #67 on: February 06, 2011, 05:57:55 am »
That's going be a thing of the past.  That optimization is built into Axe now. ;)
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Offline Deep Toaster

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Re: The Optimization Compilation
« Reply #68 on: February 06, 2011, 10:01:18 am »
That's going be a thing of the past.  That optimization is built into Axe now. ;)

Which one?




Offline squidgetx

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Re: The Optimization Compilation
« Reply #69 on: February 06, 2011, 11:10:11 am »
woah, that's mad nice, Runer. Is it always better to avoid For() loops and use Lbl/Goto structures instead (or the While -1 structure)?
 
Quigibo, do you mean that something like
Code: [Select]
A-1->A
!If A
...
would be auto-opted to
Code: [Select]
A-1->A
!If
...
« Last Edit: February 06, 2011, 11:15:17 am by squidgetx »

Offline Deep Toaster

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Re: The Optimization Compilation
« Reply #70 on: February 06, 2011, 11:44:13 am »
If so that'd be awesome. And maybe if a loop starts with While A or Repeat A, move the A to the end of the loop too?
« Last Edit: February 06, 2011, 11:44:32 am by Deep Thought »




Offline Builderboy

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Re: The Optimization Compilation
« Reply #71 on: February 06, 2011, 01:18:02 pm »
Wow thats going to be auto optimized now?  Thats gotta shave lots of bytes off of every program O.O

Offline ztrumpet

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Re: The Optimization Compilation
« Reply #72 on: February 06, 2011, 01:18:39 pm »
That's going be a thing of the past.  That optimization is built into Axe now. ;)
Woah, really?   Awesome! ;D  I can't wait for a new version. :D

Offline calc84maniac

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Re: The Optimization Compilation
« Reply #73 on: February 06, 2011, 02:48:26 pm »
To take advantage of it, you'd still have to code in the same way, I think. But actually typing the variable name makes much more readable code :)
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Offline Builderboy

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Re: The Optimization Compilation
« Reply #74 on: February 06, 2011, 02:52:07 pm »
Quigibo, how is this being optomised?  Is it actually looking into the assembly and seeing when there is a Ld ($) HL followed by a LD HL ($) ? or something along those lines?