[Coco] Is there any coco3 software that can actually use 8 Meg ?
coco at jechar.ca
coco at jechar.ca
Fri Sep 12 22:18:43 EDT 2025
What about sound I was wondering if I could play a 5 Meg wave file from
memory ?
On 2025-09-12 22:04, Bill Pierce via Coco wrote:
> 8 meg currently can't be used in NitrOS9 (legally), as the page map for
> the graphics pages would be too large. GrfDrv would have to be enlarged
> to 16k to accomplish this. 2 meg is the limit, and yes, NitrOS9 will
> use the extra 3 meg memory and software has been written to use it. My
> "MShell" is one example of this.
> BUT, using machine language in RSDOS, it's fairly easy to implement.
> Back a few years ago, I wrote a horizontal/vertical/diagonal scrolling
> demo for the 16 color screen. It scrolled (smoothly) through a graphics
> screen 3 pages wide and 10 or 12 pages high, and using the joystick,
> you could scroll in all directions, even diagonally. I never expanded
> to using any sprites or collision, but I used the converted screenshots
> of the first level of Nintendo's "Tiger Heli" as my terrane. It was
> pretty cool and (I think) used about 4 megs for the screens (preloaded
> at the start). I could easily have gotten to 8 meg of screens, but that
> was the size of the Tiger Heli level.
> The video is in the Coco Facebook Group's video section (I'm pretty
> sure) or just search the group for "horizontal/vertical scroll demo"
> and you should find my post. I may have even uploaded the demo disks
> (no sources) to the Coco FB files section (I don't remember if I did).
>
> Bill P.
> On Friday, September 12, 2025 at 03:38:54 PM EDT, coco--- via Coco
> <coco at maltedmedia.com> wrote:
>
> All
> I have heard that some coco 3's have been upgraded to 8 Meg Memory
> and
> it is an option for the Vcc emulator
> but is there any software that can actually use 8 Meg ?
>
> Charlie
>
>
>
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