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Re: SMS Plus port updated
Posted by: Peter Jan,23.2006-17:02 

I've been looking at this too.

A total rewrite of render.c and possible vdp.c should give quite a speed boost. One could even use the native hardware scrolling.

There is an open source Z80 emulator written in 68k assembler called "z80-68k" (by Günter Woigk & Sankt Johann). It works a bit different from the one used in SMS, but it could perhaps be adapted. It lacks some instructions, but I don't know if this would interfere in this case..

Combine these two and it could run smooth on a CT2.

Personally, I won't spend much time on this, since I am more interested in making it run on Nova, Eclipse and future graphicscards with a real chunky display. And - I'd rather spend my time on new ports. I might rewrite the PSG emulator a few times though..

The source is free for anyone to continue digging into it! I'd prefer if we could combine all changes made into one release, naturally.

-- Peter







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Topic Posted by  Date 
SMS Plus port updated Peter Jan,21.2006-14:22
  Re: SMS Plus port updated sh3-rg Jan,21.2006-16:47
    Re: SMS Plus port updated Peter Jan,21.2006-17:57
      Re: SMS Plus port updated MacFalcon Jan,21.2006-19:30
      Re: SMS Plus port updated Patrice Mandin Jan,21.2006-22:37
        Re: SMS Plus port updated Peter Jan,22.2006-00:50
          Re: SMS Plus port updated MacFalcon Jan,22.2006-11:37
            Re: SMS Plus port updated CiH Jan,22.2006-12:03
            Re: SMS Plus port updated Peter Jan,22.2006-12:27
            Re: SMS Plus port updated deez Jan,22.2006-14:10
              Re: SMS Plus port updated MacFalcon Jan,22.2006-23:59
                Re: SMS Plus port updated Peter Jan,23.2006-08:55
                  Re: SMS Plus port updated deez Jan,23.2006-14:45
                    Re: SMS Plus port updated CiH Jan,23.2006-14:58
                      Re: SMS Plus port updated Peter Jan,23.2006-17:05
                    Re: SMS Plus port updated Peter Jan,23.2006-17:02
                    Re: SMS Plus port updated sh3-rg Jan,23.2006-18:30
                      Re: SMS Plus port updated Peter Jan,23.2006-22:40
  Re: SMS Plus port (nasty bug) Peter Jan,25.2006-22:00
    Re: SMS Plus port (nasty bug) cIh Jan,26.2006-13:43
      Re: SMS Plus port (nasty bug) MacFalcon Jan,26.2006-15:08


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