Search found 1177 matches

by ggn
Sun May 20, 2018 7:00 am
Forum: Ym rockin'
Topic: Turbochip - 7-channel YM+DMA replay
Replies: 11
Views: 488

Re: Turbochip - 7-channel YM+DMA replay

Nice project!

Since this resonates a bit with what I've recently done, perhaps you could use Arkos tracker 2 for the YM part?
by ggn
Fri May 18, 2018 7:31 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Cool, only twice slower than raw YM and much, much much, more memory-efficient! Do you consider your player finished? If possible, I'd like a version to be integrated to the Arkos Tracker 2 package. Do you think it is a good idea, or do you prefer only having a repository? I like somehow having the...
by ggn
Fri May 18, 2018 5:56 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

I just managed to do some measurements using gwEm's CPU measurer (is that even a word? anyway). Hatari profiler can measure an exact amount of cycles for you, for any part of your code. Probably easiest way to do that is adding symbol for start and end of the part of code you want to measure before...
by ggn
Thu May 17, 2018 12:55 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

I just managed to do some measurements using gwEm's CPU measurer (is that even a word? anyway). The optimised player now averages on less than 2 scanlines, peak is at about 2.5 (at least with the test tunes I tried). As for SID voices: http://d-bug.mooo.com/various/sid_cpu.png (doesn't mean much as ...
by ggn
Sun May 13, 2018 4:40 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Thanks for your kind words :). For the rest, the demo is now live at http://www.pouet.net/prod.php?which=76112 As for vocals: it really was a 20 minute hack at the party, Grazey supplied me the code he used for hipsid and I simply piggybanked it to the player. Personally I won't even dare to ask you...
by ggn
Sat May 12, 2018 10:23 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Good stuff Targhan! And hello from me everyone here at Outline 2018! Since we finished our entries for the party we thought we (me and Grazey) could have a crack at adding SID voices to the replay routine. Guess what - it worked :) Here's a sneak preview, the source will be cleaned up and uploaded a...
by ggn
Fri May 04, 2018 6:51 pm
Forum: C / PASCAL etc.
Topic: gcc 7.1 for the ST series
Replies: 82
Views: 11065

Re: gcc 7.1 for the ST series

Server's back up, hopefully more stable than ever now! So have a poke if you want :)
by ggn
Fri May 04, 2018 12:45 pm
Forum: C / PASCAL etc.
Topic: gcc 7.1 for the ST series
Replies: 82
Views: 11065

Re: gcc 7.1 for the ST series

Out of curiosity - does this run on TOS/MiNT? To be honest I've never even tried compiling it for MiNT target. The only way I'd attempt something like this would be via aranym or if you use mikro's bootstrapping stuff. IIRC that's building a host cross compiler and then use that to compiling for Mi...
by ggn
Fri May 04, 2018 6:10 am
Forum: C / PASCAL etc.
Topic: gcc 7.1 for the ST series
Replies: 82
Views: 11065

Re: gcc 7.1 for the ST series

Looks like gcc 8.1 was released a couple of days ago, so we added that to our build script and tried it out - worked without a hitch! http://brownbot.hopto.org/ is also updated with the latest gcc, so enjoy! (edit: well I jinxed it - the server went down shortly after I announced this - it'll be bac...
by ggn
Wed May 02, 2018 4:41 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Just a small update here: The player now has been optimised quite a bit, and there's a way to create .sndh files directly. I am working on streamlining tune export with Targhan a bit, hopefully pretty soon it'll be easier. But as it is right now there are instructions on the repository and it is pos...
by ggn
Mon Apr 23, 2018 9:35 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

RIght, so a couple of clerical errors fixed and now it seems to sound like it should :D.

I'll provide emulator recordings tomorrow so people can listen and compare but it does sound very close now!
by ggn
Sun Apr 22, 2018 8:28 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Hey, that's great, fantastic work :). dc.b 8 : dc.w Main_Subsong0_RegisterBlock_784 + 1 ; Optimization: goto common Block at index 1. No ST assembler I know of recognises this - can we please have two separate lines of dc.w? Really? What kind of crappy assemblers are you using :) ? Well, I can add ...
by ggn
Sun Apr 22, 2018 11:28 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Okay, I spent some more time on the player - it now actually plays something that resembles music :). I'll need to do a more careful listen of the original and compare it with what's played, or make a specific tune so I can compare differences easier. Anyway, progress! (github/bitbucket updated, any...
by ggn
Sat Apr 21, 2018 7:16 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

A small update here: now the player can init and play a song, it even outputs things to the ym! However it's still doing something wrong and loops early (after playing about 2-3 notes?) but hey - progress! If targhan is still reading this, I have a couple of small requests for the exporter: a) In ce...
by ggn
Fri Apr 20, 2018 8:22 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Here you go, a crash course kind of article written by yours truly 11 years ago: http://d-bug.mooo.com/dbugforums/cgi-bi ... 1179828064
by ggn
Fri Apr 20, 2018 7:12 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

So for anyone that cares: I just finished a 2nd pass at the source code, tidying up things and taking care of loose ends. Which in practice means: a) It's now ready for debugging (so far I've been writing code at blind, so tons of bugs expected!) b) It is most certainly not optimal! For now it's si...
by ggn
Fri Apr 20, 2018 6:47 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

So for anyone that cares: I just finished a 2nd pass at the source code, tidying up things and taking care of loose ends. Which in practice means: a) It's now ready for debugging (so far I've been writing code at blind, so tons of bugs expected!) b) It is most certainly not optimal! For now it's sim...
by ggn
Fri Apr 20, 2018 7:04 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Yup, thanks for the replies. I was mostly concerned about song length and limits, how much you can cram into 64k. I'll forge ahead with a 64k aligned buffer (because that's the easiest - adding support for non aligned buffers is mostly trivial and will take a slight more amount of cpu time). I just ...
by ggn
Thu Apr 19, 2018 5:45 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

So hi again, Today I finished porting over the player code at sort-of-blind mode. It definitely doesn't work right now but at least it assembles without errors - woohoo ;). Of course during this first pass I did get an overview of the file format, and then I opened the editor and played with the exp...
by ggn
Wed Apr 18, 2018 5:31 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Okay I have a question! (well I have a bunch of them but this is probably the most crucial right now) What does this snippet of code do? ld a,11 ;Next regiser ld b,d out (c),a ;f400 + register. ld b,e out (c),0 ;f600. dec b outi ;f400 + value. ld b,e out (c),c ;f680 ex af,af' out (c),a ;f6c0. ex af,...
by ggn
Wed Apr 18, 2018 5:41 am
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Hello! Wow! That's great! HOWEVER: you should have asked me before starting, you should NOT convert the "stabilized" player, because it only means something on an Amstrad CPC (each instruction always takes the same cycles, so it's rather easy for us to have "stable" code. Too bad...
by ggn
Tue Apr 17, 2018 5:46 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Just for the heck of it, I started converting the z80 code line by line, trying to accommodate for small changes but not seeing the big picture yet. If anyone wants to have a laugh, point your browsers at https://github.com/ggnkua/Arkos-Tracker-2-ST or https://bitbucket.org/ggnkua/arkos-tracker-2-st...
by ggn
Sun Apr 15, 2018 4:57 pm
Forum: CosmosEx
Topic: A year later
Replies: 11
Views: 2247

Re: A year later

Oops, sorry there I totally forgot about this thread :(.

If you can tell us what's the current status we can pick it up from there and see.
by ggn
Fri Apr 13, 2018 7:40 am
Forum: 680x0
Topic: Cacheable areas on Falcon?
Replies: 9
Views: 1221

Re: Cacheable areas on Falcon?

Not really a good idea when using TOS. Not only that you would have to copy the whole memory area of vectors first (because that change applies to *all* interrupts), And where's the problem with that? It's not like you need to copy around megabytes of RAM. but there are also certain routines in TOS...
by ggn
Thu Apr 12, 2018 6:23 pm
Forum: Coding
Topic: Anyone to convert a Z80 music player?
Replies: 55
Views: 4300

Re: Anyone to convert a Z80 music player?

Is the 6502 player source available? Then we could use something like mos2mot to bring it to 68000 and add platform specific stuff and optimisations with a couple of passes.

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