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A little GBA demo   Message List  
Reply | Forward Message #1120 of 15019 |
Re: [gbadev] A little GBA demo

Hey,

about your Fitzy demo - a bit late, but I see some dots in the upper right
corner of your screen:

When you write to OAM, you have to write to ALL the OAM, that means first
clear them with a blank sprite. I give you an example:

// First make a transparent char, a blank one
for( i = 0; i < 64; i++ ) ObjectData[CHAR(0)+i] = 0;

// Then fill all the OAM fields with it. So you have a neat screen.

for( i=0; i < 128; i++ )


Oam[i] = 0 | BIT13;
Oam[i+1] = 0;
Oam[i+2] = 0;
}

Do this only once, in the init, and then you just write into OAM as if you
didn't do this at all, quite like always.

Don't worry about speed, because the AGB displays all of the 128 objects,
if you want or not, all the time.


If this didn't interest you, then sorry.

Happy new year, all the best and more such nice demos ; )


- Nokturn




Mon Jan 1, 2001 8:40 am

nokturn_@...
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Message #1120 of 15019 |
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Hi, Here is my last demo on GBA. You can move with the pad a character in a very very little maze. I run well on GBAEmu but you need to disable GBA Screens 1,...
Sébastien DEZAUTEZ
sdezautez@...
Send Email
Dec 6, 2000
9:40 pm

Congrats, your demo is great! I am doing such a demo, too, at the moment. I hoped I was the first one to release an OAM demo, but well ; ) But it runs so...
Nokturn
nokturn_@...
Send Email
Dec 7, 2000
2:07 pm

Hello Nokturn, Thursday, December 07, 2000, 3:08:12 PM, you wrote: N> Congrats, your demo is great! I am doing such a demo, too, at the moment. I N> hoped I...
anarko
anarko@...
Send Email
Dec 7, 2000
3:17 pm

... comp or ... time ... or you will have to wait a release of our new portable emulator dedicated to GBA demos, BoycottAdvance. the goal is to make a freeware...
Julien Frelat
julien.frelat@...
Send Email
Dec 7, 2000
3:35 pm

... That's great news! One suggestion would be to integrate a linker into the emulator, and only enabling it to run object files, not dumped roms. -a...
Anders M Montonen
ammonton@...
Send Email
Dec 7, 2000
4:16 pm

Hello Anders, Thursday, December 07, 2000, 5:16:27 PM, you wrote: ... AMM> That's great news! One suggestion would be to integrate a linker into the AMM>...
anarko
anarko@...
Send Email
Dec 7, 2000
4:20 pm

... Yeah, but then you can make a proper binary for uploading. The point is that this scheme prevents running dumped binaries. Maybe something even more harsh...
Anders M Montonen
ammonton@...
Send Email
Dec 7, 2000
4:26 pm

... how many people are working on a freeware/legal/portable GBA emu ? ... a+ Gollum...
Julien Frelat
julien.frelat@...
Send Email
Dec 7, 2000
4:32 pm

Hello, I am working on a freeware GBA emu that is "supposed" to have a nice debugger as well. It uses my own ARM core, that is not very advanced as of now... ...
Eloist
Eloist@...
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Dec 7, 2000
9:53 pm

... dedicated to ... attempts ... for ... thanks ... a linker ? ... already planned. there will be no header support so only demos will be accepted. a+ Gollum...
Julien Frelat
julien.frelat@...
Send Email
Dec 7, 2000
4:19 pm

If this is a suggestion to stop piracy, then I have to ask how long it'd be before some l33t h4x0r writes a gbrom2o utility? Almost certainly take less time to...
Dave Mariner
elevenstrong@...
Send Email
Dec 7, 2000
4:23 pm

Hello Dave, Thursday, December 07, 2000, 5:24:25 PM, you wrote: DM> If this is a suggestion to stop piracy, then I have to ask how long it'd DM> be before...
anarko
anarko@...
Send Email
Dec 7, 2000
4:26 pm

don't make it use OBJ files, as some people will be developing using nintendo's assemblers and compilers, not the arm one. or if you only allow obj files, make...
jim bagley
jimbagley@...
Send Email
Dec 7, 2000
4:35 pm

Hey, about your Fitzy demo - a bit late, but I see some dots in the upper right corner of your screen: When you write to OAM, you have to write to ALL the OAM,...
Nokturn
nokturn_@...
Send Email
Jan 1, 2001
8:39 am
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