R0ger

Could by anything really. Send XEX.

Superb !

You can use SAP-A and specify both Init and Play vectors in header, and the SAP player will provide timing. Or you can use SAP-D and use VBI, IRQ, VCOUNT, whatever you want. You just have to do directly, without ROM. At this moment I think SAP-A should be the easiest one.

In SAP-D you only need one vector. Your code has to provide the timing though. My SAP is based upon RMT XEX export, which relies on VCOUNT.

Hmm .. could be the issue .. my SAPs (which work) are as all my programs - they don't use ROM.

Indeed, tried to redo one of them myself .. same result. I'm using foobar SAP plugin. You simply went too far 🙂

Here is example of simplest possible SAP header, AFAIK, and resulting SAP. Should be good starting point. ahead.sap sap.txt

SAP is the routine. SAP is basically XEX. Turning XEX into SAP is adding a header, and sometimes removing stuff not needed for music. There is no need to use SAP-R only because you use custom routine. Of course, you can still use something which is not supported in SAP players. But so far I haven't find anything. For example my IRQ bass works fine in SAP players, even if it doesn't run at all in Atari800 family emulators. Read the documentation I linked, and you should be able turn your XEX into SAP easily. If you have XEX for example exported from RMT, I suggest using SAP-D, as you simply set entry point. SAP-A requires you to have Init routine and Play routine, which is also simple to do, but SAP-D is even simpler.

So why SAP-R ? Why you can't use normal SAP ? Good documentation is here: http://asap.sourceforge.net/sap-format.html

You can also turn off ROM and use everything 🙂

Look, it's Tramiel's baby. Basically a C64. Absolutely do not get it ! 😉

Something completely new, and very different. My goal is the tracker to be easily extended. It might actually end up being target platform independent, so it could be used for making music for Sid or AY or whatever really. I want something which allows experiments. Let's say I come up with new sounds using something not heard before. I would like it to be possible to simply add short piece of assembler code, say what features it supports, what tone table it uses, and with no change to tracker itself, I should be able to use it. Same with samples and soft synths. Over the years there were many cool experiments in this area, only reason why it's not used more is missing tracker. That means completely new playback routine, which wouldn't even be fixed binary, but would be linked together from bunch of asm sources, completely new format vague enough to contain anything, and of course, completely new front end, again, flexible enough. So I guess now you understand why you might not live long enough to see it. But your kids might !

My first ones were graphical stuff. On PMD85, which is super simple Czech school computer with 8080. Programs which draws rocket, or helicopter, from lines. I was like 12. I was never really interested in anything useful, just games and GFX. Basic on PMD had simple software sprites, so I tried making a game with that, but I soon moved to assembler, as it just wasn't sufficient. I had a book from a friend about machine code for 8080 .. I carefully wrote down all instructions, flags, codes .. but when I returned the book to him I said: ok, I know how to move numbers around, but how can I do anything besides that !? Ah, good times. And yeah, IT college, and IT work since then. Both our college and early companies were all friends from IT club on elementary school. I only moved to Atari recently, as it has best community around here.

Sure ! Mark 2030 in you calendars !

I'd like to do it, but I still have many other projects, and very ambitious plans for the tracker. So no idea if I'll ever start. But multi-platform is a must.

Ok, NOW I understand how someone can feel offended by videogame

I use them with MADS on windows. Not sure if they are meant for some specific assembler. Btw. I understand the code quite a bit, a was rewriting big portion of it recently for my current yet undisclosed project, so if you have some question or specific problem, ask away. Also from people going on AA I'm probably closest to Raster and I actually have access to the original source codes. They are not public though. I'm personally more interested in completely new tracker, rather than extending RMT, but it always depends on what exactly you want.

People lose lives in car accidents, wars, murders. Yet we put all that into games all the time. You will feel really bad one day when somebody's uncle is eaten by insect in space. I would simply make the game, and let people play it when they feel like it. For example it's pretty calm now in Europe. USians might feel a little differently right now though. But day will come, when they will want to laugh at the virus too. Would be nice, if the game was waiting for them.

Insane ! Each one of them would be decent entry !

Come people, don't be such snowflakes. Life is harsh. Laugh at it. If somebody doesn't like it, it's his problem, not yours.

Question not relevant to latest releases: is there a way to test loading from disk with various disk speeds ? Today we have many different disk simulators, which vary in speed from original disk speeds to divisor 6, some even faster. AFAIK Altirra can only simulate various disk drives in its original speeds, or I use accelerated disk drive access, but the speed seem to be 'infinite'. I'd like something like 6 divisor. Is there a way ?

Thanks for the report, will pass it up to guys responsible.

Well, attributes 1 character high are too restrictive for fractals. If we could force charmap refresh every 2 lines, that could be worth pursuing, but whole character ? Nah.

Nota bad. Those pictures have obviously tons of anti-aliasing, but it certainly looks better than I expected.