Chip16 Official thread (Development/Suggestions)

[Prads]

Originally Posted by paul_nicholls

haha! neat
So what high-level language is it compiling? C/C++? Or something else?

Custom syntax. Pretty much like C but little changes.
This is experimental project and we weren't sure if we would be able to complete it when we started it but last couple of days we are getting some great results and compiler is already able to compile some syntax into chip16 binary.

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[paul_nicholls]

Nice! So can you parse expressions yet and produce code from them? They can be 'fun' to get working correctly

[Prads]

Originally Posted by paul_nicholls

Nice! So can you parse expressions yet and produce code from them? They can be 'fun' to get working correctly

Yes it can. I compiled this code:

void main() {
	var a;
	a = 20;
	if (a > 30) {
		SetBackground(5);
	}
	if (a < 30) {
		SetBackground(10);
	}
}

and it was able to compile it. I will attach the binary it compiled.
Here's the source code repo for the compiler: http://code.google.com/p/chip16-dev-kit/

EDIT: Oh and the binary it compiles to is spec 1.0. That is the one without the header...

Attached Files

test.7z (264 Bytes, 5 views)

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[tronix286]

Hi,
another my small chip16 intro: sinedots. Very flicked, but we haven't free memory for double buffer.

Attached Files

new_sine.rar (5.1 KB, 21 views)

[paul_nicholls]

Originally Posted by Prads

Yes it can. I compiled this code:

void main() {
	var a;
	a = 20;
	if (a > 30) {
		SetBackground(5);
	}
	if (a < 30) {
		SetBackground(10);
	}
}

and it was able to compile it. I will attach the binary it compiled.
Here's the source code repo for the compiler: http://code.google.com/p/chip16-dev-kit/

EDIT: Oh and the binary it compiles to is spec 1.0. That is the one without the header...

Very cool! I will have to check out the source code (pun intended!) I am into compilers

[paul_nicholls]

Originally Posted by tronix286

Hi,
another my small chip16 intro: sinedots. Very flicked, but we haven't free memory for double buffer.

Thanks for sharing, I will try it out later on...

[Prads]

Originally Posted by tronix286

Hi,
another my small chip16 intro: sinedots. Very flicked, but we haven't free memory for double buffer.

Wow, that looks awesome.

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[tykel]

Originally Posted by tronix286

Hi,
another my small chip16 intro: sinedots. Very flicked, but we haven't free memory for double buffer.

I'll see if there's room for any optimisation in the code... but THAT's what I call a demo!

@Prads: if you can't be arsed to do the header generation, you can just call my cmd line utility in your IDE if you want.

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[refraction]

Thats awesome! looks even more wicked (and less flickery) with vsync off lol

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[paul_nicholls]

Originally Posted by refraction

thats awesome! Looks even more wicked (and less flickery) with vsync off lol

+100

[paul_nicholls]

@tykel: I have a question about your tchip16 assembler

# IMPORTBIN -- importbin filename offset n label
Allows you to import a binary file, which will be appended verbatim at the end of
the code. They are stored in the order they are imported.
Imported: filename, from address offset to (offset+n), written from address label
in the ROM.

I don't understand what the offset+n and the lable part is used for...

Why the offset and the label? Couldn't one just do this sort of thing?

inport a file at label "MySprite" in the assembly

MySprite: importbin myfile.bin

[Prads]

Originally Posted by tykel

@Prads: if you can't be arsed to do the header generation, you can just call my cmd line utility in your IDE if you want.

Yeah that sounds like a good idea. Thanks...

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[tykel]

Originally Posted by paul_nicholls

@tykel: I have a question about your tchip16 assembler



I don't understand what the offset+n and the lable part is used for...

Why the offset and the label? Couldn't one just do this sort of thing?

inport a file at label "MySprite" in the assembly

MySprite: importbin myfile.bin

The offset is used if you want to import only part of a file (like the 2nd half), or if you want to import it in pieces in different order.
The label simply means, "import all this at label MySprite".

Now, your syntax also makes sense. The reason I have it the way it is:
- It's simpler to code
- It means all the imports are grouped together at the top of the file, facilitating readability.

However, I guess if you want to import something and have more code afterwards, or some db's, then you currently hit a rock.
I'll probably add it to the next release (next week).

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[paul_nicholls]

Originally Posted by tykel

The offset is used if you want to import only part of a file (like the 2nd half), or if you want to import it in pieces in different order.
The label simply means, "import all this at label MySprite".

Now, your syntax also makes sense. The reason I have it the way it is:
- It's simpler to code
- It means all the imports are grouped together at the top of the file, facilitating readability.

However, I guess if you want to import something and have more code afterwards, or some db's, then you currently hit a rock.
I'll probably add it to the next release (next week).

Ok, thanks for the explanation tykel...it is clear now
If you could add it whenever, that would be great.

Well, I am going to have a play with the assembler and see what I can come up with (I'm not too familiar with chip16 asm yet! haha)

[tykel]

Originally Posted by paul_nicholls

Ok, thanks for the explanation tykel...it is clear now
If you could add it whenever, that would be great.

Well, I am going to have a play with the assembler and see what I can come up with (I'm not too familiar with chip16 asm yet! haha)

You should probably start by understanding how some of the other demos work then -- all the sources are there, waiting for you

You should start with simple ones, like Maze, Anim, Pong, PaletteFlip, GB16.
Then you can move on to less trivial ones, like AdsrDemo, Herdle, Reflection, or SineDots. Shendo's are well commented.

Most of the assembly syntax should be explained in the README anyway

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[paul_nicholls]

Yeah, I will have a closer look at the demos

[tronix286]

Originally Posted by Prads

Wow, that looks awesome.

Originally Posted by tykel

I'll see if there's room for any optimisation in the code... but THAT's what I call a demo!

Thanks for watching and comments Maybe we should think about addressing more than 64K? For examlple, two video layers - current frame buffer and second "hidden" double buffer... Or, just another 64K for data and switch between them.

So, something like this:

bnk 0             ; select first mem bank, it's "code" section . By default.
ldm r0, X        ; load X in r0 register

bnk 1             ; select "second" mem bank, it's "data" section
stm r0, #0001 ; store r0 at 64K+#0001;

Now iam working on the effect of a burning flame. BTW, if you are interesting, some demo effects from 1996-2000 written by myself on borland pascal+assembler: http://www.youtube.com/watch?v=RDAeZm3W9kQ

PS: Sorry for my terrible english ((

[tykel]

Originally Posted by tronix286

Thanks for watching and comments Maybe we should think about addressing more than 64K? For examlple, two video layers - current frame buffer and second "hidden" double buffer... Or, just another 64K for data and switch between them.

So, something like this:

bnk 0             ; select first mem bank, it's "code" section . By default.
ldm r0, X        ; load X in r0 register

bnk 1             ; select "second" mem bank, it's "data" section
stm r0, #0001 ; store r0 at 64K+#0001;

Now iam working on the effect of a burning flame. BTW, if you are interesting, some demo effects from 1996-2000 written by myself on borland pascal+assembler: http://www.youtube.com/watch?v=RDAeZm3W9kQ

PS: Sorry for my terrible english ((

Well, there are always more things we can add, and that is one of them, although I have a few others too...

BUT, the priorities right now are: 1) get people emulating spec 1.1, with full support for everything, and 2) make more games/demos which make use of the current instruction set.

So no more instructions for a little while.

BTW, nice demos Tronix, mostly Pascal or Assembler? How difficult to port are they?

EDIT: Actually, a number of things still need to be done:
- Make a Wikipedia page for Chip16
- Possibly a forum with separate threads for emu's, games, ideas and stuff.
I think visibility is still a problem here. I mean, Chip16 was mentioned on a french tutorial website, and that gave us a whole load of hits (including BestCoder I think). We need some page in English that's easy to find.

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Last edited by tykel; March 23rd, 2012 at 23:57..

[ShendoXT]

As everyone said already, amazing demo Tronix286.
I've checked the Youtube video also and I really like it. Would be cool to see those demos on Chip16

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[paul_nicholls]

Very nice demo Tronix286!
I know that the spec is fixed, but I think one little thing would make demos/games much easier to program with the Chip16 - being able to access the video buffer as direct memory accessing, and not just sprites.

Just my $0.02