Subj : Re: Amiga assembly, bootblock developing
To   : Danny Bee
From : Felice Murolo
Date : Tue Oct 17 2023 23:11:30

On 17-10-2023 20:34:14, Felice Murolo writes:

> On 17-10-2023 07:53:36, Danny Bee writes: 
> >  FM> into the floppy bootblock.  
> > The goal is to have your NDOS disk bootup to your program or just to 
> > stuff from a floppy even if this is just a system formatted disk.  
> > I'm sure the first is well documented on the Internet, but as you're 
> > on learning assembly written programs to distribute the on a floppy, why 
> > to start from startup-sequence?  

> Hi Danny, 
> that is, are you telling me that bootblocks like the ones in the images I 
> do nothing more than load a normal program allocated somewhere else on the 
> https://fel.hopto.org/test/demo.png 
> https://fel.hopto.org/test/demo2.png 

I answer myself: no, not all, at least.

I analyzed the source of the first bootblock of which I attached the images in the previous message and everything happens in the 1024 bytes of that source, no external program is launched.

Now I will have to understand the various pieces of that source, which animates writings and draws those "sinusoidal" lines on the video. And it sounds, too. It's not easy for me.

Thanks anyway.

Ciao.
Felix

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