forum.system-cfg.com

The code can be quite big but the trick is to put the big code on disk (say file big.asm) and keep in memory a small file (say small.asm) that uses the INCLUD directive to actually compile the big one. INCLUD big END Another option is to still keep big.asm in memory but instead of compiling to ram, ...

Bit shifting by 4 is rather slow for the 6809. Instead You can make the ship move by steps of 2px. To for this simply draw the ship in rama then ramb at some offset from the start of the buffer. Then start at the same offset in ramb and go on with drawing the next column of the ship in rama at offse...

On the binary TO series I know of another possible memory zone for overlapping. But I don't know the mo6 enough to tell. Fullduplex knows for sure. Daniel as well but he is away at the moment.

Oh after further thinking it is obvious. It freeze because when you map ram to cartridge space. You loose the assembler which also resides in cartridge space. the first thing to do when ram overlap rom/cartridge space, You should disable all interrupts. then before the code terminates, you should re...

I think this is because your source code in ram collides with the generated binary. You should probably relocate the generation of the binary by changing the ORG statement or by compiling to a diskfile instead of ram.

(this is just my two cents)

Au vu de mon état actuel je ne suis plus partant pour grand chose. Même si on peut dire que ça roule, il n'y a plus grand chose qui marche avec moi en ce moment.

Yes that's it : clear both ram banks.

Notice : this is what is done automagically by the monitor when using PUTCH and escape séquence to change the screen mode.

You mean the vertical stripes that appear after poking $A7cd hence switching to 160x200? they are normal since in 320x200 the invisible cyan foreground color in color-ram suddenly are interpreted. as chunk bits and become visible as stripes on every ram-b column in 160x200.

De toute façon je pense que comme d'habitude en cette période Daniel est en vacances et ne pourra pas répondre facilement.

Félicitations! De ce que je comprends des misères de développement et instabilités, cela demontre que l'environnement Linux ne possede plus le niveau de qualité d'autrefois. Il voulait concurrencer Windows mais apparaît nettement plus complexe avec 36 distributions toutes plus imparfaites et moins s...

Quelqu'un se sent il prêt pour faire cette démo sur minitel?
http://www.pouet.net/prod.php?which=70465

https://www.youtube.com/watch?v=y2knYNDNKfY

Ce sujet a été abordé il y a longtemps sur logicielsmoto. mais il n'est pas très développé.

http://www.logicielsmoto.com/phpBB/view ... w=previous

i haven't read the code but it is likely that x contains a kind of pixels number in linear order. x-319 then refers to the pixel in upper right position from the one designated by x. notice this is just hypothetical. further inspection of the code will give more hints.

0,x stands for adress x+0. so sta 0,x stores the accumultor at x+0. lea effectively stands for load the effective address. leax -319,x loads in x the address x-319. in fact this is similar to x=x-319 in c/basic/etc. you can do the same with all address registers. for instance leau -2,y is the same a...

Whaaaaaa. Une bagnole pleine de trucs prêts à exploser (c'est de la bombe).... encore un attentat dejoué !