[Coco] Random Numbers in 6809 assembly

[Robert Gault]

Look at my web pages for downloadable programs. The symmetry program 
contains one type of random number generator. In fact, the presence of 
source code examples on my site and Roger Taylor's was mentioned on this 
list within the last few days.

Try the program PORT.EXE if you are having problems moving files from/to 
your PC and Coco, real or emulated. Port comes with the Vavasour emulator.

By the way, I have not been able to tell exactly why you want to emulate 
a CHIP8 computer. If it is the challenge of having the Coco emulate 
another computer great! If you just want to work with Semigraphics, why 
bother. You can download a Semigraphics-24 editor from my site.

David wrote:
> Hi all,
> 
> I've been hunting through various books and online docs, and I'm yet to come
> across a way of generating random numbers using pure 6809 assembly on the
> Coco2/3
> 
> anyone have any code snippets for this?
> 
> An update for my CHIP8 emulator - I have the set/reset graphics pixels
> routines up and running extremely smoothly in semigraphics 4 mode, along
> with a few other minor supporting routines
> 
> I'm constructing the main emulator in BASIC at the moment, just to tie
> together various assembly routines for testing at this stage
> 
> and I'm loving Jeff V's Coco2 and Coco3 emulators, as their debugging
> monitor is a God-send!
> 
> Please also note that I'm using good-old fashioned disk edtasm, as for some
> reason portal-9 doesn't cooperate with my computer, and when I use cm.exe I
> cant import the binaries properly to virtual coco disks.. life's tough :P
> 
> If anyone can help with a random number generating routine, it would be
> wonderful!
> 
> Thanks
> David R
> 
>