GBA Dev

Over Christmas 2001/Jan 2002 my Internet and email when all pear shaped, my laptop and main machine got rebuilt and thus I lost several emails I had intended to reply to.
so If you have tried to email me sometime in Dec 2001 or Jan 2002 and have not yet received a reply then please accept me deapest apolgies. and email me again
I have got it all live again, (I think).

More info, screen shots, binary and full sources


More info, screen shots, binary and full sources

Currently dev kit advance lacks a simple quite one file demo, so for those of you just starting with dev kit advance here's a quick one file mode 3 rectangle plotting demo

The 'buildme.bat' assumes that you have installed dev kit advance in c:\devkitadv\...
To use the make file on win32, you MUST have c:\devkitadv\bin on your path and make.exe in c:\devkitadv\bin
It does not use any header files, so you don't need libgba or other or any include path settings.
It's one source file, but the make and the buildme.bat both compile then link so you should be able to use this as the basis for a multi file demo without much hassle.
Tested on Win2000
Should work on win95/98/NT4
The make file SHOULD work on Linux/Unix (if you have the right gcc and make on you PATH)

Get it now

following a descussion on frame rates and smooth motion on the gbadev mailing list I quickly knocked up this test prog, so you can see first hand how many frames you might need to make motion smooth.
it has two modes:

const speed
The shape rotates at a fixed anglular rate (60deg per second)
slow down
The shape rotates aton degree per frame

Get the source

Get the binary

This is all very sketchy at present, I have started putting together a few docs on gcc inline assembler and arm/thumb assembler in general. I'm putting it here as a kind of "request for comments" from those who run across it until it's ready to publicise a little more. for now there are two docs

gcc asm, a newbies guide to!
rotate maths scrappy bits on the rotate, scale and shearing of sprite