[Rpcemu] Chocks Away emulation a little speedy

Peter Moore petemoore at gmx.net
Fri May 15 02:46:14 PDT 2020


Many thanks Bryan, Theo and George!

That’s good to know. I had selected a hardware profile in RPCEmu (“Risc PC - ARM610”) and had thought perhaps cycle timings would have been taken from this choice, but if emulating cycle timings is not feature, no worries at all.



The second issue I had is that unlike on the original hardware, the mouse pointer crawls up the screen when displaying the game menu, despite the mouse being still (you can see this in the video clip) and that the pointer is restricted to a specific region of the screen (I can make a separate video to demonstrate this, if desired).

I wanted to raise this as it may be due to an inaccuracy in the emulation, rather than because I want to play this particular game. It is nice to play it, of course, but that wasn’t really my motivation. :-)

I’m also happy to get involved making a fix, if that helps, although I would need a little bit of mentoring to get started.

Many thanks again!
Pete


> On 14. May 2020, at 20:28, Bryan Hogan <rpcemu at helpful.demon.co.uk> wrote:
> 
> In message <9ECA882A-A98F-4024-8012-D0BF6516002E at gmx.net>
>          Peter Moore <petemoore at gmx.net> wrote:
> 
>> I recently imported my old RISC PC hard drive and am successfully
>> emulating it in RPCEmu. Some apps run a little faster that on the original
>> hardware, one example is Chocks Away:
> 
> AIUI RPCEmu isn't intended to be a cycle accurate emulator. After all, 
> with so many different models of RiscPC cpu, what speed would it use?
> 
> However, if Chocks Away uses the video refresh for its timing, then 
> changing the RPCEmu refresh rate might help. Maybe try 25Hz?
> 
> For games, try Arculator instead -  http://b-em.bbcmicro.com/arculator/
> 
> Bryan.
> 
> -- 
> RISC OS User Group Of London  -  http://www.rougol.jellybaby.net/
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> 
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