Eagle

No

Too late 😁

I had to solder mine. edit: @ZeroPage Homebrew it’s DF power on?

I attached small music pack for YM2151 chip It was used for testing and will delete them, but maybe someone will enjoy them. @Trebor all JS7800 versions has removed bit 8 from the header (JS7800 bug) Also almost all of them are PAL. ym7800musicpack.zip

@SainT Just one more to test if you don't mind. Now is not about timing, it's just to compare how is play against original. 2 versions Pal and Ntsc (with sign ) just in case with console you are using also link for JS7800 (if anyone want to listen) Studiopolis YM2151 music WAV generate from VGM for comparison studiopolis.wav Thanks StudiopolisYM(NTSC).a78 StudiopolisYM(PAL).a78

OK. I trust your ears YM2151 manual saying that you need wait 68 internal clocks before writing next byte (about 35 Sally cycles) But I couldn't find any more details, only I found about YM2612 https://gendev.spritesmind.net/forum/viewtopic.php?t=386&start=825 For demos every cycle count

I'm doing recently some timing test with YM2151 on DragonFly and emulators. @SainT I was wondering if you could test both files on GD7800 and let me know if you can hear any difference. Thanks RtypeTitleYMwait(PAL).a78 RtypeTitleYMnowait(PAL).a78

Yes. 1MB+ 2x16KB Ram. Hotspot for swapping between ram banks it’s $FFFF bit D0=0 first bank D0=1 second bank. This same as SN Cart.

ReksioJS7800.a78 is for JS7800 emulator with cleared bit for YM (thanks @playsoft) Reksio.a78 for DF and A7800 emulator with XM Sorry guys but PAL only! Reksio - online emulator info.txt Reksio.a78 ReksioJS7800.a78

Reksio is beloved main character from Polish cartoon “Reksio” Beginning of this song is from cartoon intro, originally made by Lesnik in ‘90. The Duccinator made fantastic cover for YM2151 and he let me use it. It’s taking sometimes almost all cpu time, so not much left for special effects. BTW people are not aware of A7800 capabilities and they believed that this demo is made on cart driven by ARM 😂😂😂 Few more demos and they will be selling Amiga, ST, Jaguars and start buying 7800

Live from Revision oldskool demo compo

Revision 2023 Oldskool entry Reksio Silly Venture 2023 Summer Edition Atari 7800 Invitro Enjoy

This is from 2012 🙈 I started A7800 version. You can find video on forum.

@MrFishwhyyyyyyy?

Yes, and it can make a lot of sprites. Few examples. 669546177_A7800_Atari7800(PAL)Coola7800p2023-04-0214-57-03.mp4 1464218239_A7800_Atari7800(PAL)Coola7800p2023-03-1722-55-48.mp4 1728079153_A7800_Atari7800(PAL)Coola7800p2023-02-2323-06-52.mp4 bjGuardian.mp4 1487592454_A7800_Atari7800(PAL)Coola7800p2022-11-1321-51-39.mp4 ProSystem Emulator - SF TEST 2022 Eagle 2022-07-24 23-18-31.mp4

There is some code and banked gfx (that's why probably fonts are repeated )

I will try to finish next week

Thanks @SlidellMan but I'm not planning to use Pokey and @miker has already made music.

Pushing the limits, Maria said no more sprites A7800_ Atari 7800 (PAL) Cool [a7800p] 2023-03-21 17-07-21.mp4

I know. 320 modes are not a problem for a coder but for gfx guys We don't have good topic about 320 modes on forum so we can continue here and put everything in one place. Even some information/spreadsheet on the forum are misleading. I just did small program for testing 320A modes so anyone can test before decide to use 320 modes. Fire changing between sprites, every sprite use different pallet. Joy left, right moving sprite (it's done by hires pixel!!!) Difficult switch Kangaroo mode ON/OFF Next time I will do for other 320 modes. 320 mode test - JS7800 link test320.a78

Long story short, avoid 320 modes You can use them for text but if you try to overlap 320A mode then you will be surprised. But I'm not an expert, we had one on the forum but he abandoned us

I will try to not use this GFX in the future. But it's not really up to me I'm using this graphics to show capabilities of my engine. If I will start using some squares blocks then probably no one will enjoy. We just had this conversation today on Polish discord and I decided to use 160B mode for Heli and Jeep, make them bigger and add dark outline. I'm getting little bit dizzy playing with Heli because everything is blending. But it's really playing much better on real hardware.

Player two has entered the chat A7800_ Atari 7800 (PAL) Cool [a7800p] 2023-03-20 17-43-27.mp4

BOSS FIGHT!!! Boss it's in 160B -12 colours - converted from Amiga (that's why is only 5 colours) Easily can be done in 24 colours as well (tested) A7800_ Atari 7800 (PAL) Cool [a7800p] 2023-03-19 18-39-43.mp4

I never joke about colours. Below some of my A8 tests