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AppGameKit Classic Chat / How does Tier 1 work internally?

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Xaron
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Joined: 3rd May 2014
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Posted: 31st May 2017 15:44
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Hey there,

I haven't found anything about that in the forums but I've heard that Tier 1 works like that:
The interpreter compiles the basic source into byte code, these byte codes are then sent to a giant c++ switch/case statement with every API commands byte code in a "case". The parameters are pushed on and off a stack before calling the relevant AGK2 API command.

Does it work that way?

Another thing is: Are there different binary sizes for Android/iOS when using Tier 1/2?
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PSY
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Posted: 31st May 2017 21:54
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I guess the bytecode runs in some 'Virtual Machine', but the devs can give you a 100% answer
PSY LABS Games
Coders don't die, they just gosub without return
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Mobiius
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Posted: 1st Jun 2017 09:11 Edited at: 1st Jun 2017 09:11
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Why not look at the tier 2 source code?
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Xaron
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Posted: 1st Jun 2017 13:54
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Indeed, thanks! So it is like I wrote.
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Alex_Peres
AGK Master
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Posted: 1st Jun 2017 14:57
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Quote: "Why not look at the tier 2 source code?"

Maybe that's because it is hidden?
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Xaron
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Posted: 1st Jun 2017 15:10
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Actually it's not. There is a bunch of case statements, for Tier 1 so it is like I wrote. Which is not necessarily bad.
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Xaby
FPSC Reloaded TGC Backer
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Posted: 2nd Jun 2017 10:15
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If you are asking about Tier 1 and 2, I am also interessted in if it could be possible, to Switch in a project between Tier1 and Tier2, maybe if not in the same document, but on document basis. #includes maybe in Tier2 and Main() in Tier1. Maybe Tier1 -> to Tier2, but not Tier2 -> to Tier1.
Or would that more be a Pre-Compiler? Like Microsoft does it with JavaScript and TypeScript?
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