Homebrew [Release] Bread Box (C64 Emulator)

[Vague Rant]

e.g. Wizball frequently runs around 42-45 FPS, so while triple the clock speed is perhaps overkill, it's probably easier to implement than improving performance by about 10-15%. Obviously it would be better for the emulator to run full speed everywhere, but if it's not running full speed and you have some extra headroom available to make it run full speed in more situations, it might as well be used. If you're concerned about battery life, you could take a similar approach to what Davideesk has done with Minicraft3DS, where the game defaults to 268MHz and players can go into the settings to enable 804MHz mode should they desire it.

 

[sarkwalvein]

In what way? it's currently running at 50fps for most games, at it's lowest point it runs at around 47fps. Other than a constant 50fps, what advantage would there be?

What about NTSC shouldn't matter as all great C64 software was made in Europe but the 60fps NTSC model still exists?
Does it achieve 60fps also?

 

[spinal_cord]

What about NTSC shouldn't matter as all great C64 software was made in Europe but the 60fps NTSC model still exists?
Does it achieve 60fps also?

It's limited to 50fps because the C64 was mainly a European machine. Also, I don't see the point of playing games 'ever so slightly faster'.

 

[Vague Rant]

There's also the fact that frame skip seems to be locked to 1 at all times; so the "practically 50FPS" performance is kind of illusory.

 

[spinal_cord]

There's also the fact that frame skip seems to be locked to 1 at all times; so the "practically 50FPS" performance is kind of illusory.

1 = no frame skip

0 frame skip doesn't draw the screen at all.

 

[Vague Rant]

1 = no frame skip

0 frame skip doesn't draw the screen at all.

Oh, I see, that's confusing. Thanks for the correction.

 

[ody81]

Are their any good tutorials for compiling a cia and all the required files (banner etc.)?

I looked at 3dbrew for that. But there were no live links to makerom at the time. There was another guide though, I'll see if I bookmarked it...

Nevermind, makerom link's still dead so here's some dropbox links i made up.
Bear in mind, I have used this stuff, but it's probably outdated, but still useful.

Here's link's to the makerom, ctrtool and banner creation stuff I've used in the past.

https://www.dropbox.com/sh/4m00iji3xgmpntg/AAA97rp4cjBKdZNFreM5QLBJa?dl=0
https://www.dropbox.com/sh/8ed2g9pwcv5dkkj/AAA8F7Qbb6EU7dRuL-sAsQB7a?dl=0

And page 35 here for .rsf creation...

http://gbatemp.net/threads/tutorial-converting-3ds-to-cia-for-dummies.373722/page-35#post-5155838

 

[Vague Rant]

Thanks for the quasi-recommendation, by the way, @spinal_cord. Just played all the way through You Have to Win the Game on BreadBox; great game.

 

[spinal_cord]

Thanks for the quasi-recommendation, by the way, @spinal_cord. Just played all the way through You Have to Win the Game on BreadBox; great game.

hehe, I'm stuck at 98%, must have missed something

 

[Vague Rant]

@spinal_cord Hahahahahaha, that's exactly what happened to me. Finishing the game (good ending) actually got me the last 2%. I must have spent an hour looking for what I missed before then.

 

[spinal_cord]

@spinal_cord Hahahahahaha, that's exactly what happened to me. Finishing the game (good ending) actually got me the last 2%. I must have spent an hour looking for what I missed before then.

finished it twice now, no luck.

 

[Vague Rant]

@spinal_cord Doing the good ending and everything?

Spoiler: The good ending

In the room where the wall says "What do you want from me?" you need to type ← which will open a console window, then ARC, Enter, and ← again to close the console.

 

[spinal_cord]

@spinal_cord Doing the good ending and everything?

Spoiler: The good ending

In the room where the wall says "What do you want from me?" you need to type ← which will open a console window, then ARC, Enter, and ← again to close the console.

see what happens when i try to play a game the "old" way and not look anything up. How are people meant to know that! I'll give it a show.

 

[Vague Rant]

@spinal_cord Yeah, there are hints written on the walls throughout the game as if a "previous player" had figured out the solution, but they're cryptic as all hell and totally meaningless until you go Googling for what the hell you're supposed to do.

 

[spinal_cord]

@spinal_cord Yeah, there are hints written on the walls throughout the game as if a "previous player" had figured out the solution, but they're cryptic as all hell and totally meaningless until you go Googling for what the hell you're supposed to do.

Right, now that that's done, I can get back to attempting to clean the audio up.

 

[kenseiden]

Just wanted to say thanks for bringing the C64 to the 3DS

(Also, there's a C64 version of You Have To Win The Game? Never knew that...been playing the Steam version all this time! welp I guess I know what I'll be doing later)

 

[spinal_cord]

OK, I need a little help with the sound. I've managed to get the quality to where I want it (good), however I seem to be filling the buffer incorrectly. The attached build uses the following code to update the sound, have a listen ant tell me where I've gone wrong (please)...

 // CALC_FREQ = 50
 // TPS = ticks per second = 268123480    
 // sample_length = 44100 = 1 second    
   
    int divide = 50;
    thisTime = svcGetSystemTick();
    if (oldTime < thisTime){
        oldTime = thisTime + (TPS/CALC_FREQ); // 50 times per second
        if(showMenu != 1 && filesGot != 1){
            calc_buffer(sound_calc_buf + offset, (sample_length/divide)*2); // 2 50ths of a second of sound
            offset += (sample_length/divide); // increment by 50th of sample length
            if(offset >= sample_length) offset -= sample_length;
        }else{
            memset(sound_calc_buf, 0, sample_length);
        }
    }

 

[spinal_cord]

Is it possible to get a 3d rotating c64 as a banner for this?

 

[Jayro]

I hope the sound emulation is spot-on, because I want to experiment with SAM, the original speech synthesizer before Microsoft bought it.

 

[spinal_cord]

I hope the sound emulation is spot-on, because I want to experiment with SAM, the original speech synthesizer before Microsoft bought it.

Once I know whats going wrong (see above post) then I'm sure it will be more than good enough.