hjhornbeck
Manawyrm | SarahJust released my first ever demoscene demo at Revision 2026 in the Wild-Compo:
A tech demo for Casio fx-9860G graphical calculators!
Sourcecode: https://github.com/Manawyrm/Casiomania
Details: https://kittenlabs.de/casiomania/
Vivi
LDA [doki doki waku waku 
]@manawyrm So that was what that repo was for!
I don't have an fx-9860 (/derivative), and it seems to depend on the T6K11 drvier's functions so I can't test directly, but that just looks (and sounds!) awesome
I don't have an fx-9860 (/derivative), and it seems to depend on the T6K11 drvier's functions so I can't test directly, but that just looks (and sounds!) awesome
@lda No idea what happens without a t6k11 (I mostly only use it for the initial snow and contrast setting).
Give it a shot on a different calculator with SH-4 if you've got one :)
(no promises, though :D)
@manawyrm hm, after removing basically all calls to t6k11-related functions (and with build-fxg3a), it still failed
looks like it's caused by the audio thread using DMA channel 0 (channel 0 and 1 are reserved for gint tasks on the fx-CG50, 0 IIRC is for sending VRAM over and 1 is... something? I honestly forgot why it was used)
I think you'd also need to mess with the C0MID address used as it's hardcoded (I'd say my branch of gint defines fields for that, but the forge it's on is getting hammered by AI scrappers, sorry!)
Still doesn't seem to get past the introduction sequence, so I assume there's something wrong with the DMA code still...
@manawyrm UPDATE: turns out the hang was because I used the wrong DMARS selector (I geninuely forgot each DMARS field held 2 RIDs!)
It now works (mostly) fine on fx-CG50/G90+E (except for audio playback speed, but that could likely be fixed by using a better value for the SCIF's SCBRR/computr it on the fly)
@lda hell yes 😻😻
Schenkl | 🏳️🌈🦄@manawyrm this is sooo coool!
James Mitchell@manawyrm awesome
halcy @ 
feuerrot
coldclimate@manawyrm I saw that on the stream earlier and greatly enjoyed it, thank you.
Joe@jdb78 Soo much fun!!
dmi 💽 @domi tysm!!
sb arms & legs@manawyrm
Long Live The Scene!
Long Live The Scene!
ROllerozxa@manawyrm oh nice, that's exactly the calculator that got me through secondary school! should try it out sometime.
yetzt
Stu
48kRAM but with parity@manawyrm Loved it!! Well done!
@manawyrm i just got to watch it, and I'm blown away. That's a LOT of demo for a little calculator
iLow
Ronflaix@manawyrm glad to see that there are still people pumping out wonders on these calculators.
@manawyrm so music is doable on the serial port? I haven't looked at the source (well I stopped after recognizing the fxsdk's structure) but I suppose it's something you did through timers, isn't it? Also, DMA? How so? Are you mixing on CPU and just pushing the data through serial with the DMA?
@Ronflaix no timers (those are used for grayscale!) but DMA yes.
Every time the DMA finishes sending bits, it triggers an interrupt which will then generate a new PCM buffer and also convert that into the PWM bitstream.
No mixing at all, just single stream, but you could totally mix if you wanted too.
@manawyrm ooh, I didn't know you could wire an interrupt this way, neat! I'm really piss poor at optimizing for SH4 (the pipeline timings wring my brain like nobody's business) but hearing about it kinda makes me wanting for more haha
Andreas Scholl (Zeronine)@manawyrm Nice demo 🥰