Search found 81 matches

by Natsumi
Sat Jun 10, 2017 9:52 am
Forum: Tools
Topic: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2
Replies: 33
Views: 6374

Re: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2

Could you elaborate? I don't find the mouse to be particularly difficult to use in the existing menu. The reason probably is that my mouse has a very varying DPI settings, and I usually use large DPI's. I've gotten used to it and it mostly works fine, I can move my mouse around much faster than nor...
by Natsumi
Fri Jun 09, 2017 9:53 pm
Forum: Tools
Topic: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2
Replies: 33
Views: 6374

Re: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2

It should remember the folder within a single run of the program (press Esc to go back to the menu after you've loaded a ROM), though it won't remember what page you're on in a long list of files. The folder it starts in on a fresh run of the emulator is configurable by changing the initial_path op...
by Natsumi
Fri Jun 09, 2017 1:46 pm
Forum: Tools
Topic: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2
Replies: 33
Views: 6374

Re: Blastem 0.5.0 - Many accuracy improvements, basic SMS support, runs OD2

I've heard a lot of good about BlastEm, so I just checked it out of curiosity. I've got to say, I am a little disappointed by what I've seen so far. Let me explain; The biggest gripe for me is the menu. It seems like you cant just drop in ROMs, and navigating the menu is terrible. Especially because...
by Natsumi
Tue Jun 06, 2017 5:38 pm
Forum: Collaboration
Topic: Griel's Quest: looking for translators
Replies: 11
Views: 4987

Re: Griel's Quest: looking for translators

looks interesting enough, I may have a go for Finnish. I have to warn though; Static systems where you just replace the phrases/words dont often work well, especially for humour, puns, jokes and references. Ideally, translations would happen as the game is bding built. Are there any helpful doc on a...
by Natsumi
Tue May 30, 2017 6:43 pm
Forum: Video Display Processor
Topic: Sprites emulation and how they work on Exodus
Replies: 6
Views: 1872

Re: Sprites emulation and how they work on Exodus

In interlace mode 2, the range is & 0x3FF, but in interlace mode 0 or 1, its 0x1FF :P
The document doesn't say it properly, but its actually either 8 or 9 bits, depending on interlace mode.
by Natsumi
Fri Apr 21, 2017 10:53 am
Forum: Megadrive/Genesis
Topic: 68000 programming optimization tips? (for speed)
Replies: 27
Views: 6597

Re: 68000 programming optimization tips? (for speed)

also it can be very useful for something like this; .cloop tst.b (a1)+ ; check if entry is null seq d2 ; if is, set d2 to $FF add.b d2,d3 ; and then subtract 1 from total count if so dbf d1,.cloop ; loop til all cards are checked Over branching conditionally, this actually saves 4 cycles per loop. Q...
by Natsumi
Fri Mar 03, 2017 6:01 am
Forum: Megadrive/Genesis
Topic: Mega Everdrive USB programming
Replies: 6
Views: 2109

Re: Mega Everdrive USB programming

What I did was, I set the C# code to transfer the entire file at once. 68K side I just kept in a loop reading the data, but I could get it to never sync, and from what I remember it never was able to keep up with the Z80 playback. I also remember that I had issues actually being able to read enough ...
by Natsumi
Mon Feb 20, 2017 11:23 am
Forum: Video Display Processor
Topic: Sprite disappearing on certain conditions ???
Replies: 7
Views: 2211

Re: Sprite disappearing on certain conditions ???

Could always put at Y = 0 instead =P
by Natsumi
Thu Feb 16, 2017 6:55 am
Forum: Video Display Processor
Topic: Sprite disappearing on certain conditions ???
Replies: 7
Views: 2211

Re: Sprite disappearing on certain conditions ???

I just now realized this is true... So technically this hack in Sonic games shouldn't be needed! I'll go test few things, be back to you with results.

Apparently this happens on the damn title screen. That's mildly stupid...
by Natsumi
Wed Feb 15, 2017 1:30 pm
Forum: Video Display Processor
Topic: Sprite disappearing on certain conditions ???
Replies: 7
Views: 2211

Re: Sprite disappearing on certain conditions ???

Sprite masking. When there is a sprite with X=0, the lines are masked and no sprite will show up there. This should apply to both of these sprites however, I do not understand why it doesn't. The fix? If X=0, add 1 to X. This will in some rare cases offset sprites but it will work just fine. Make su...
by Natsumi
Tue Feb 14, 2017 5:12 pm
Forum: Megadrive/Genesis
Topic: 32-bit integer to string routine
Replies: 10
Views: 2087

Re: 32-bit integer to string routine

I dont know which of these are faster, but I thought to share this anyway, in case someone finds it helpful; ; =========================================================================== ; Routine to translate an integer to null-terminated decimal string ; input: ; d0.l - integer ; d1 - number of di...
by Natsumi
Thu Jan 05, 2017 11:41 am
Forum: Megadrive/Genesis
Topic: XBAND, Mega Net 2, and Mega Drive Keyboards
Replies: 20
Views: 4435

Re: XBAND, Mega Net 2, and Mega Drive Keyboards

Awesome, thank you! The point of getting the ROM was not to play it, but to verify a few things, and if needed, extract the machine code out of it.
by Natsumi
Sun Jan 01, 2017 1:50 am
Forum: SGDK
Topic: Scrolling Map Demo
Replies: 14
Views: 2568

Re: Scrolling Map Demo

Then you try to optimize and find that unrolling loops is an effective method for doing that. But hey, one good tip I can give you is... Use macros if possible. You can have a piece of code a million times, and still one change affects all of it, Really quite useful for gaining both speed, and yet e...
by Natsumi
Wed Dec 28, 2016 8:16 pm
Forum: Megadrive/Genesis
Topic: XBAND, Mega Net 2, and Mega Drive Keyboards
Replies: 20
Views: 4435

Re: XBAND, Mega Net 2, and Mega Drive Keyboards

Yeah, I was not quite sure so I went with what the dumps say. However it seems really apparent they are not related. As far as that doc, I had a look at it earlier, but I can't confirm it is correct, and I can't therefore also create a test ROM to use without the keyboard, which is why I'd like to h...
by Natsumi
Tue Dec 27, 2016 7:05 pm
Forum: Megadrive/Genesis
Topic: XBAND, Mega Net 2, and Mega Drive Keyboards
Replies: 20
Views: 4435

XBAND, Mega Net 2, and Mega Drive Keyboards

Hello, we are doing some research, and investigating if it would be possible to be able to acquire a keyboard and a ROM to verify it works, write few test ROMs and documentation, and in the end get it emulated on emulators that are currently being worked on (GPGX comes to mind first). The cool thing...