Chip16 Official thread (Development/Suggestions) - Page 33

tykel · February 14th, 2013, 21:40

Quote:

Originally Posted by ShendoXT

System simplicity for first timers has I dare say it vanished. So adding more stuff for "Chip8 veteran" coders should be acceptable.

Are you referring to the ADSR sound? If so, then it is not quite as trivial as the beepers, sure... but if you want a chance at implementing a more complex system, it sure is very useful. There is a learning curve in the implementation I find, which is not necessarily a bad thing.

Quote:

Originally Posted by ShendoXT

Edit: Just a teaser for something. It's 50% done. I just need to finish it when I find time.

Look forward to seeing more

Quote:

Originally Posted by ShendoXT

It should be added.

Incoming

@haxatax: it may not be real hardware, but you are still trying to push the system's limitations... isn't that what demos are about?

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tykel · February 16th, 2013, 21:32

I propose the following additions for specification 1.2:

Code:

A3 0X LL HH        MOD RX, HHLL     Divide immediate value with value of register X, modulus is stored in register X. Affects [z,n]
A4 YX 00 00        MOD RX, RY       Divide value of register Y with value of register X, modulus is stored in register X. Affects [z,n]
A5 YX 0Z 00        MOD RX, RY, RZ   Divide value of register Y with value of register X, modulus is stored in register Z. Affects [z,n]
A6 0X LL HH        REM RX, HHLL     Divide immediate value with value of register X, remainder is stored in register X. Affects [z,n]
A7 YX 00 00        REM RX, RY       Divide value of register Y with value of register X, remainder is stored in register X. Affects [z,n]
A8 YX 0Z 00        REM RX, RY, RZ   Divide value of register Y with value of register X, remainder is stored in register Z. Affects [z,n]

Z flag raised when result is zero.
N flag raised when result is negative.
No C,O flags needed I believe.

EDIT: I would also like to modify the SPU section to add clarifications for newcomers:

Code:

SPU:
-----
Two options are available:
- Playing one of 3 fixed tones (500 Hz, 1000 Hz, 1500 Hz) for a given number of milliseconds, OR
- Using sound generation options (SNG instruction), play a tone from memory for a given number of milliseconds.

Total time = Attack + Decay + (Duration - Attack - Decay) + Release

Attack is the duration it takes to go from intensity 0 to max intensity (volume).
- Duration values:  2, 8, 16, 24, 38, 56, 68, 80, 100, 250, 500, 800, 1000, 3000, 5000, 8000

Decay is the duration it takes to go from max intensity to sustain intensity.
- Duration values:   6, 24, 48, 72, 114, 168, 204, 240, 300, 750, 1500, 2400, 3000, 9000, 15000, 24000

Release is the duration it takes to go from sustain intensity to intensity 0.
- Duration values: 6, 24, 48, 72, 114, 168, 204, 240, 300, 750, 1500, 2400, 3000, 9000, 15000, 24000

Volume is the peak volume of the sound.
Sustain is the volume the sound will sustain after decay, until release.

Sounds may be of 4 types, which affects the sound's wave pattern:
- Triangle: Slope up and down linearly between negative and positive amplitude at the given frequency.
- Sawtooth: Slope up from negative to positive amplitude, then fall back to negative, at the given frequency.
- Pulse (Square): Alternate between negative and positive amplitude in a binary fashion, at the given frequency.
- Noise: A white noise channel, obtained by creating random samples at the given frequency.

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Last edited by tykel; February 16th, 2013 at 22:32..

**refraction** · February 22nd, 2013, 10:33

Sounds good. Can we think of any other OPs which would be useful? any simple MADD style ones? (Multiply Add) or anything? If we're gonna change the spec, we might as well cram in what we can ;p

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tykel · February 24th, 2013, 16:33

Quote:

Originally Posted by refraction

Sounds good. Can we think of any other OPs which would be useful? any simple MADD style ones? (Multiply Add) or anything? If we're gonna change the spec, we might as well cram in what we can ;p

I'll tell you what else is missing: NOT and NEG!

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**refraction** · February 24th, 2013, 19:34

indeed they are :P

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My Chip16 Emulator RefChip16 http://code.google.com/p/refchip16/

tykel · February 26th, 2013, 22:12

Updated my bmp->sprite converter, img16, with dithering support (Floyd-Steinberg variety).

Without/with dithering:

Using and specifying a custom palette will improve the result.

Available on Google Code: http://code.google.com/p/img16/downloads/list

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Last edited by tykel; February 26th, 2013 at 22:26..

**refraction** · March 1st, 2013, 14:08

Its amazing the dithering makes! very impressive

does it make up the palette for you (if so does it export the bin for you?) or do you have to specify the palette file for it to use?

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tykel · March 1st, 2013, 19:15

Quote:

Originally Posted by refraction

Its amazing the dithering makes! very impressive

does it make up the palette for you (if so does it export the bin for you?) or do you have to specify the palette file for it to use?

That example uses the default palette, which is pretty flexible according to my experiments!
It can take a custom palette too, though, as can my emulator now.

I am currently trying to get automatic palette generation to work properly (currently broken), I will update when that happens.

Also, let's remember tronix had dithering in his converter from the start

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Last edited by tykel; March 1st, 2013 at 19:23..

tronix286 · March 2nd, 2013, 18:03

Quote:

Originally Posted by tykel

I am currently trying to get automatic palette generation to work properly (currently broken), I will update when that happens.

Also, let's remember tronix had dithering in his converter from the start

Nice work, tykel!
BTW My new version support generating optimal pallete from source image, support custom pallete set (not finished yet) and of course support original CHIP16 palette. Maybe someday I build release.

Attached Images

imgconv.png (199.4 KB, 28 views)

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Last edited by tronix286; March 2nd, 2013 at 18:10..

vahokif · March 19th, 2013, 20:53

Hey guys, I've just finished my Chip16 emulator in Haskell: https://github.com/vahokif/hchip

It's pretty much feature-complete now (including ADSR audio), so give it a shot if you like.

You'll need ghc 7.6 and cabal-install to build it, just run:

Code:

cabal install --only-dependencies
cabal configure
cabal build

from the root directory.

tykel · April 13th, 2013, 21:08

Quote:

Originally Posted by vahokif

Hey guys, I've just finished my Chip16 emulator in Haskell: https://github.com/vahokif/hchip

It's pretty much feature-complete now (including ADSR audio), so give it a shot if you like.

You'll need ghc 7.6 and cabal-install to build it, just run:

Code:

cabal install --only-dependencies
cabal configure
cabal build

from the root directory.

Good job, it's nice to see new emulators

@Tronix: Yes, do release it, please! And how about a command line version too?

---------------------------------------------------------------------------------------

I have an announcement to make: the primary home of Chip16 is moving.

I have set up a Github page (http://github.com/tykel/chip16) which will from now on act as the primary reference for the specification.

You will find a much clearer and cleaner specification, in the form of a wiki, which provides a good base for the version bump we have been talking about.

This thread will remain, for us old timers (lol) to discuss, but I think it would be wise to have a message board for chip16 - or perhaps a subreddit, or maybe both.

I want to setup a proper frontend for showcasing all these ROMs we have too - not sure if that should go on the github, or chip16.pcsx2.net.

Anyway, I would really like some input from everyone, as this is quite exciting

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Last edited by tykel; April 13th, 2013 at 21:14..

**ShendoXT** · April 15th, 2013, 18:49

That's an awesome move Tykel. It should give Chip16 a lot more coverage and hopefully popularity.
Also, nice job on the wiki, it's very well written and contains a lot of information

**refraction** · April 15th, 2013, 18:54

Indeed, good job

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tykel · April 16th, 2013, 23:33

Thanks guys.

So it's posted on reddit too now, so a few more like-minded people can find it (and have already, by the looks of things).

I forgot to mention, the Issues section of the GH page allows for a centralised Requests location -- so if you feel something is missing, just follow the template and post it there.

Final thing, I want to give a few of us commit access - like Shendo, if he wants to stay involved. PM me your GH username if you want.

EDIT: I have set a milestone of May 1st for spec 1.3. It's coming!

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Last edited by tykel; April 19th, 2013 at 00:04..

paul_nicholls · April 20th, 2013, 12:02

Nice move! Looking forward to the github, not that I have used it much LOL

paul_nicholls · April 20th, 2013, 12:06

pm sent...

tykel · April 22nd, 2013, 18:18

Done

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**ShendoXT** · June 9th, 2013, 20:49

Finally I got Sokoban to a beta release. All 50 levels from the original game are included.

Screens:

The only thing left to do is proper in game pause menu and undo command.
I'll work on that when I find some free time.

If you encounter any bugs please inform me. I did test the game but there is always a possibility of mistake.

Controls:
SELECT - Go to main menu
B - Restart stage

I do have to say Tykel, your compiler amazes me. It works really great and error detection is superb.

Also, Refraction's emulator is awesome too. I had no problems with it whatsoever. It abides the spec perfectly.

Attached Files

Sokoban beta.zip (5.3 KB, 5 views)

Last edited by ShendoXT; June 10th, 2013 at 00:32..

tykel · June 15th, 2013, 17:17

Quote:

Originally Posted by ShendoXT

Finally I got Sokoban to a beta release. All 50 levels from the original game are included.

Screens:

The only thing left to do is proper in game pause menu and undo command.
I'll work on that when I find some free time.

If you encounter any bugs please inform me. I did test the game but there is always a possibility of mistake.

Controls:
SELECT - Go to main menu
B - Restart stage

I do have to say Tykel, your compiler amazes me. It works really great and error detection is superb.

Also, Refraction's emulator is awesome too. I had no problems with it whatsoever. It abides the spec perfectly.

Wasn't expecting this... Very nicely done! I need more practice though

I am currently rewriting the assembler, objectives include relocatable code, macros etc. Project is on gitub.com/tykel/as16 !

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mash16 (chip16 emulator) img16 (chip16 sprite converter)
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February 22nd, 2013, 10:33	#643
refraction PCSX2 Coder $refraction's Avatar$ Join Date: Jan 2004 Location: Plymouth, UK Posts: 10,037	Sounds good. Can we think of any other OPs which would be useful? any simple MADD style ones? (Multiply Add) or anything? If we're gonna change the spec, we might as well cram in what we can ;p __________________ http://www.pcsx2.net Intel i7 920 @ 3.4Ghz, POV GTX 570 1.3Gb, 1.8Tb HD space, 6Gb OCZ Reaper PC3-14400 Triple Channel Dont PM me for help, use the forums, thats what its for! My Chip16 Emulator RefChip16 http://code.google.com/p/refchip16/
$refraction is offline$

February 24th, 2013, 19:34	#645
refraction PCSX2 Coder $refraction's Avatar$ Join Date: Jan 2004 Location: Plymouth, UK Posts: 10,037	indeed they are :P __________________ http://www.pcsx2.net Intel i7 920 @ 3.4Ghz, POV GTX 570 1.3Gb, 1.8Tb HD space, 6Gb OCZ Reaper PC3-14400 Triple Channel Dont PM me for help, use the forums, thats what its for! My Chip16 Emulator RefChip16 http://code.google.com/p/refchip16/
$refraction is offline$

March 1st, 2013, 14:08	#647
refraction PCSX2 Coder $refraction's Avatar$ Join Date: Jan 2004 Location: Plymouth, UK Posts: 10,037	Its amazing the dithering makes! very impressive does it make up the palette for you (if so does it export the bin for you?) or do you have to specify the palette file for it to use? __________________ http://www.pcsx2.net Intel i7 920 @ 3.4Ghz, POV GTX 570 1.3Gb, 1.8Tb HD space, 6Gb OCZ Reaper PC3-14400 Triple Channel Dont PM me for help, use the forums, thats what its for! My Chip16 Emulator RefChip16 http://code.google.com/p/refchip16/
$refraction is offline$

March 19th, 2013, 20:53	#650
vahokif Registered User Join Date: Feb 2011 Posts: 1	Hey guys, I've just finished my Chip16 emulator in Haskell: https://github.com/vahokif/hchip It's pretty much feature-complete now (including ADSR audio), so give it a shot if you like. You'll need ghc 7.6 and cabal-install to build it, just run: Code: cabal install --only-dependencies cabal configure cabal build from the root directory.

April 15th, 2013, 18:54	#653
refraction PCSX2 Coder $refraction's Avatar$ Join Date: Jan 2004 Location: Plymouth, UK Posts: 10,037	Indeed, good job __________________ http://www.pcsx2.net Intel i7 920 @ 3.4Ghz, POV GTX 570 1.3Gb, 1.8Tb HD space, 6Gb OCZ Reaper PC3-14400 Triple Channel Dont PM me for help, use the forums, thats what its for! My Chip16 Emulator RefChip16 http://code.google.com/p/refchip16/
$refraction is offline$

February 26th, 2013, 22:12	#646
tykel Sober coder Join Date: Aug 2010 Location: London, UK Posts: 434	Updated my bmp->sprite converter, img16, with dithering support (Floyd-Steinberg variety). Without/with dithering: Using and specifying a custom palette will improve the result. Available on Google Code: http://code.google.com/p/img16/downloads/list __________________ tchip16 (chip16 assembler) Js16 (browser chip16 emulator) mash16 (chip16 emulator) img16 (chip16 sprite converter) ______________________________________ Desktop: i5 750 @ 3.6 Ghz, 4GB ram, GTX 570 OC \| Windows 7 Pro 64 Laptop: (Thinkpad) i5 430M, 4GB ram, Intel IGP \| Arch Linux, Windows 7 Pro 64 Last edited by tykel; February 26th, 2013 at 22:26..

April 15th, 2013, 18:49	#652
ShendoXT Moderator Join Date: Feb 2006 Location: Croatia Posts: 4,599	That's an awesome move Tykel. It should give Chip16 a lot more coverage and hopefully popularity. Also, nice job on the wiki, it's very well written and contains a lot of information __________________ Shendo's software blog Core i5 2400 3.1 Ghz \| ASRock H67M \| GTX460 768Mb \| 8GB DDR3 1333 \| 1500 Gb HDD Grundig VLC 7121 C (1080p) 32" \| Razer DeathAdder \| Logitech G110 \| Windows 7 x64 Don't PM or ask me about VMP-MCR conversions. I will ignore you if you do.

April 16th, 2013, 23:33	#654
tykel Sober coder Join Date: Aug 2010 Location: London, UK Posts: 434	Thanks guys. So it's posted on reddit too now, so a few more like-minded people can find it (and have already, by the looks of things). I forgot to mention, the Issues section of the GH page allows for a centralised Requests location -- so if you feel something is missing, just follow the template and post it there. Final thing, I want to give a few of us commit access - like Shendo, if he wants to stay involved. PM me your GH username if you want. EDIT: I have set a milestone of May 1st for spec 1.3. It's coming! __________________ tchip16 (chip16 assembler) Js16 (browser chip16 emulator) mash16 (chip16 emulator) img16 (chip16 sprite converter) ______________________________________ Desktop: i5 750 @ 3.6 Ghz, 4GB ram, GTX 570 OC \| Windows 7 Pro 64 Laptop: (Thinkpad) i5 430M, 4GB ram, Intel IGP \| Arch Linux, Windows 7 Pro 64 Last edited by tykel; April 19th, 2013 at 00:04..

April 20th, 2013, 12:02	#655
paul_nicholls Registered User Join Date: Sep 2011 Location: Australia, Tasmania Posts: 180	Nice move! Looking forward to the github, not that I have used it much LOL

April 20th, 2013, 12:06	#656
paul_nicholls Registered User Join Date: Sep 2011 Location: Australia, Tasmania Posts: 180	pm sent...

April 22nd, 2013, 18:18	#657
tykel Sober coder Join Date: Aug 2010 Location: London, UK Posts: 434	Done __________________ tchip16 (chip16 assembler) Js16 (browser chip16 emulator) mash16 (chip16 emulator) img16 (chip16 sprite converter) ______________________________________ Desktop: i5 750 @ 3.6 Ghz, 4GB ram, GTX 570 OC \| Windows 7 Pro 64 Laptop: (Thinkpad) i5 430M, 4GB ram, Intel IGP \| Arch Linux, Windows 7 Pro 64

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