SpritesMind.Net

While changing my code I encountered the following situation: Let's say I have this code: void handleJoyEvent(u16 joy, u16 changed, u16 state); u8 readVDP60hz() { return (*((u16*)(0xC00004)))&0x1; }; int main() { // [...] JOY_setEventHandler(handleJoyEvent); // [...] } //no declaration of handleJoyE...

Thanks! I wasn't really sure about it, so I thought posting here would be a safer way to clear this than complaining on the bug tracker

I tried contra and already the first level was broken (BG didn't scroll as it should). Then I tried Adventures of Batman and robin and the emulation didn't support Shadow/Highlight at all + Some of the music wouldn't play at all. So like one would expect from an online emulator, the quality is far f...

While cleaning up my random coding snippets and setting up some project-directories I looked through the makefile to make everything compile again and saw the following parts: out/sega.o: $(LIBSRC)/boot/sega.s out/rom_head.bin $(MKDIR) -p out $(CC) $(FLAGS) -c $(LIBSRC)/boot/sega.s -o $@ and out/rom...

Does it use some special method to transfer RAM to VDP or just normal DMA? I'm asking because I wonder what would cause the strang pink flicker when viewing the demo in exodus...

Nice to see the quick progress!
While playing the new version (on real console) I encountered a bug, though I have no idea what might have caused it. While shooting a guard the game went straight to the title screen, and some part of the sound was hanging (I guess the PSG)...

Oh well, I didn't read ICEknights post before commenting... The new version works great! FPS were very stable (18-23 FPS on 50Hz; 15-20 FPS on 60Hz). I also think that the new dithering method works very well. Its obvious how it works, and it has its limits, but when standing still it looks a lot be...

Hey, great work once again! One thing though: is the new method supposed to work on a real console? I've tried it on my PAL Mega Drive (both, in 50Hz and in 60Hz mode) and all I could see was:


The old method works fine on the same console.

I'd guess that writing your own player routine and a custom compression for the data would result in a much smaller binary than using vgm and a vgm player. So if you really try to optimise it as much as possible you might want to look into that.

So here are my results: I created a wave file with a sine wave. The frequency of this wave was 439.56 hz, the sampling rate was 16000hz. I used this file as a sample in deflemask and compared it with an fm wave (clean sine-wave, A-7). For fusion and actual mega drive I converted the .vgm file from D...

I can only test with PAL: http://www.mediafire.com/download/ef6bzm7qb20girl/Ocean_PAL.flac I also recorded a version with 60HZ mod on PAL, but it sounded the same. The PCM samples are out of tune. This might be partially due to the VGM player code. IIRC I tested several VGM Players and version 3.2 w...

Thanks! I knew that there was an interlaced mode, I just heard some people saying that the Mega Drive wasn't capable of any progressive scan at all. Seems like they were wrong

Hey, I have been frequently told that the Mega Drive/Genesis is always outputing interlaced video. I was quite sure, that this meant that only every other line was being output every other frame. This seemed unlikely since I remembered some games having effects which were based on turning sprites on...