I was experimenting with making a TB303-like filter effect by dynamically generating waveforms for sound channel 3 when I discovered an unfortunate "feature"...
... GBA generates about 59.73 (2^24 / 280896) Hz vertical refresh. NTSC TV uses about 59.94 (60000 / 1001) Hz vertical refresh. The difference is 0.213 Hz....
NTSC refreshrate 59,94 fps GBA refreshrate 59.727 fps But I'm not gonna do make any conclusions from this, I don't know the TV-De-Advance :-) ... From:...
Hi, We're experiencing the same 'error' here. We've also ordered the NTSC version and are using it in the Netherlands (PAL territory) and now know, thanks to...
I'm using the TV-De-Advance (see www.lik-sang.com) to display output from the GBA on a TV. I did a simple test, alternating the background between two colors ...
I don't want to sound like I'm doing a promotional bit or something, but for anyone wanting to add music to their games/demos, I do think that the Krawall SDK...
... Well, theoretically Krawall can mix 32 channels with less than 40% usage (2.6 + 32*1.13) too, provided that these channels are panned far left or right or...
Sebastian Kienzl
zap@...
Sep 6, 2002 7:20 pm
12625
"Lego Bionicle: Matoran Adventures" due out next month uses a 32 channel player and uses 40% CPU when doing this. So I don't think it's over kill in the...
On Fri, 6 Sep 2002 11:58:40 +0100 Martin Piper <martinp@...> wrote: Hi! ... For a simple reason, Krawall can't handle 32 channels at once, 24 is the ...
Sebastian Kienzl
zap@...
Sep 6, 2002 3:17 pm
12623
The demo isn't too bad but you don't have any 32 channel music included. Can you add a 32 channel track to the download? 'whispers.xm' is a good example or...
Hi! I've now released the final version of the free Krawall SDK. Krawall is still a library for replaying XM's and S3M's, however only the latter is available...
Sebastian Kienzl
zap@...
Sep 6, 2002 10:52 am
12621
... [...] That's only valid with 256 color backgrounds. You can access only 32KB of video memory with 10 bits indexes in 16 colors....
er - you are incorrect.. 1 16 colour char is 32 bytes not 64 so you can actually only access half of video ram (32 * 1024 = 32768 bytes or 32k) in 16 colour...
I'm not sure what's causing these problems but DMA is giving me a lot of headaches. Basically, consecutive DMAs seem to be screwing up. Using Mappy I can see...
... the correct position down >the screen. either that or use two layers and have the first set to the first char block (showing >the top half) and the second...
... the ... well, that is exactly the plan. i wanted to implement a timer that is accurate to 1/1000 s... ... volatile ... it was indeed the problem that the...
Hi, I'm trying to call Thumb ROM code from an ARM IWRAM routine. Unfortunately, I get error messages like this: Fastcode.text.iwram.o(.iwram+0xbd4): relocation...
Normally there is no need to check the timer yourself.. The normal timer usage is this: Set the correct period to use.. (every 1, 64, 256 or 1024 clocks) Set...
... How is 'REG_TMD3D' defined? Is it volatile? Waiting for Vblank within the while loop puts the CPU on halt until a Vblank interrupt fires, so that happens...
Jan-Lieuwe Koopmans
jan-lieuwe@...
Sep 5, 2002 5:02 pm
12613
You're sure you have declared REG_TM3D to be volatile right? Otherwise the value will likely be cached, thus changes in it will be unnoticed? Just something...
hello there.. since i need a timer in my game, i tried to create a function which uses one of the internal timer registers (obviously). the problem i...
yeah, got a bit confused as to what he was asking about there! the example I was giving was for a 360 * 240 map which was using 1350 unique 16 colour chars (it...
... No, that was the NES, with a hard limit of 256 different tile indices. Some games stretched their title screens over four 4 KB tile banks to cover all 960...
you would need to use a hblank to change the char base block value at the correct position down the screen. either that or use two layers and have the first...
... You can fit 256 8-bit tiles or 512 4-bit tiles into a 16 KB bank. If you have more than 256 tiles, just use tile numbers greater than 255. If a tile...
I want to set up bg 2 in mode 1 to create a scrollable background. The bg is made from a complete image so there is no tile repetion and it is divided it in...
... sprites ... 1 is the ... changes the ... the char, ... So if I understand this correctly, the order of things is like this (priorities in parenthesis): Top...
... There's a situation where you need to sort your sprites according to their priorities IE pri 0 then pri 1 etc. You've just encountered it. Least I'd assume...
I have a very simple test program, that has 2 backgrounds and two sprites but it does not work on any hardware, but runs fine on vba/ba the setup is simple,...
Mike Wynn
mike.wynn@...
Sep 3, 2002 8:01 pm
12603
... Great! I've really gotten tired of having to debug my C++ template classes on a PC. Now I can debug them... in assembly language? :-} Cheers, -Pete...
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