... No, but if you are simply looking to steer bullets, you can just normalize the deltas. dx = pEnemy->x - pPlayer->x; dy = pEnemy->y - pPlayer->y; dx =...
I didn't find much in the archives for this so I wrote my own.... This routine gets ~27000 multiplies per second in VBA which means on the real hardware its...
Hello All, I just noticed that bitmap modes on a TS4 board are shifted by -1,-1 pixels (showing the border on the bottom and right edge of the screen). I tried...
Hi, When I edit the mapwin.ini file that comes with Mappy (map editor, not the emu) it doesn't use these new settings. It just assumes the basic ones. I've ...
Ive spent a little time disassembling the flashlinker gamepack menu and managed to figure out how it pages different banks of the rom in. I dont know if anyone...
Today at walmart I noticed that there is a game shark for the AGB. It can load code/data via usb port. Can I use this to upload code to test like the...
On a more positive note I have put together some free, small, efficient LZ codecs for the GBA. There are currently three variants, they take 2KB of ram for...
I have upgraded to a faster motherboard and processor. Now When I try to use the multiboot cable it is detected but returns "0 return data should have been...
Hi, First off, does anyone have a free fast arctan algorithm, I've been looking around the web, and the best I can come up with is variations on the 'CORDIC'...
... But this spin-waits and uses up battery power. I've heard of a BIOS call (swi 5 or something) that lets one wait for an interrupt such as the vblank...
When making tile-based maps for gba, are tile sizes restricted to 8x8 pixels? Or can I use larger multiple-of-8 tile sizes like 16x16 and 32x16? Also, is 256...
From: "Evan Robinson" <erobinson@...> ... With an entree like that, how can I refuse? Indeed, the Atari 2600 had 128 bytes of ram. It used a 1.19MHz...
The MBV2 is 39$ plus the 20$ shipping equals roughly a k-billion dollars canadian. I've already ordered the flasher cart/linker/cable set thingy. Has anyone...
Hi People :) Just want to say that my gba site is online again, after the old server deleted it and changed it by a semi obscene html (I'm VERY sorry about...
[hey mods cut me some slack on this post] Has anyone ordered stuff from lik-sang and found it not working? I just got my GBA unit yesterday and today the...
... Nope. Never am. I am, fundamentally, an idiot; therefore, things which I say which I think ought to be right often aren't. Look for me trying to count...
What would happen if DMA were set up to write a value into the sound bias register every hblank? Would that be a ghetto way of achieving mono sampled sound at...
I have a question on BG mapping. Any comments about the methodology I'm using is greatly appreciated; I'm coming from the world of DirectDraw. :) I've loaded...
... it ... Remember that you're not setting tiles in the bgmap, but rather indices *to* tiles. Depending on whether you're in mode 0-2, those indices are...
Hi everyone, I have a BG mapping question in mode 0. Let's say I have a 16x8 image that contains 2 8x8 tiles. I load that into 0x06008000 (Char Base Block...
ok, the weirdest thing happened to me, i installed arm-gdb and was happily using it for a few days and now it just fails to launch, or more accurately brings...
Hi, I have a problem using objective. All sprites I converted with objective did show up totally messed when I copied them into the character ram. For e.g....
Oi! Hope my post isnt all that off topic but here goes :) I'm trying to just display a normal 64x64 256 col sprite, i have a sprite that is in gif format and i...
Why is KEYINPUT hardware register r/w? What happens if I write into it? For example, in I set A bit, it is immediately cleared if the key is not pressed? Is is...
Having problems with message search?
