![]() ![]() ![]() ![]() So you'd either need to patch your second SID, or write a new playroutine that accepts a SID chip number in (A) or something, and use that to select which registers/addresses to use when setting the values. (Sorry, this is probably more x86 than 6502, but hopefully still understandable)Īll this will do on the interrupt will play SID B, because the SID registers known in both players point to the same SID chip, so "play_sid_b" will overwrite all the registers just set by "play_sid_a". sid chiptunes from scratch using the pc/mac application 'goattracker'. If you ran two different SID tracks on the C65 (or even the C64) in the manner below: Basic guide for creating sid music with goattracker V2.67- This guide is aimed at musicians that want to start creating. The reason this is the case is because the C64 only has one SID chip, so the player that is used in the GT export only writes to a single set of SID registers. Using trackers that contain no microtuning functions. It also allows for customizable note names. You will need to write brand new init and interrupt routines which means you'll either need to write a new "export" function inside of GoatTracker, or write some C65 that can read either the GT source file, or one of it's exports. Update (December 2020): Ahornberg mentioned in the comments that GoatTracker 2 supports microtonal tuning via scala files (.scl). In order to do what I explanied above I need to adapt either the calling code or the sid files themself.ĭoes someon have something where I can learn form how to do that? Supports output via reSID or the Catweasel card. You are right - this is not real parallelity, but it would seem like it to the humans ear (as it was before with sound and game for the human on the C64). GoatTracker 1.4 is a quick port of the popular C64 music editor. So what I mean by playing two sid-files on the two sids would be the following:ġ) Loading both sid-binayies to the memory.ģ) Having the two sections after each other in a interrupt routine. GoatTracker 2.73 / 2.74s by Cadaver Download:Site CSDb CheeseCutter 2.9 by Abaddon Download:Site CSDb SID-Wizard 1.7 by Hermit. Command quick reference by Simon Bennett. Uses 6510 crossassembler from Exomizer2 beta by Magnus Lind. Uses reSID distortion / nonlinearity by Antti Lankila. This is the followed by the other code - so you achieve parallelity to the code for example of your game. GoatTracker v2.72 Editor by Lasse rni () HardSID 4U support by Tli Sndor. Then you ahve a short init section somewhere at the beginning of the code.Īnd then you call the algorithem to play the sound for the next 1/60 sek. Might be I have exmplaines it in the wrong way.įor the C64 if you use a sid-file in your own program it works like this:įirst you load the sid-binary into the memory. ![]()
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