Subject: Re: [stella] Emulating on a C64 or Amiga From: Greg Miller <uglmiller@xxxxxxxxxxxxxxxxxx> Date: Fri, 02 May 1997 02:01:31 -0500 |
Jim Nitchals wrote: > > > > > I've been trying to figure out whether > > I could make a 2600 emulator for my > > 64 - mind you, this isn't a stock 64. > > It's got a board called a SuperCPU, > > a 20Mhz 65816 that emulates a 6502 > > A 6502/816 doing single-step by placing instructions into a temporary > holding area then executing them can run at about 7% of real-time. If > doing address computation, masking of the 2600's high order address > bits, etc you'd be lucky to get to 2% of realtime (times 20 for your > fast '816, for a total of 40% of the speed of a real 2600.) Well, you also have to consider that an 816 is much faster than a 6502 at a given speed, or does it emulate the cycle times in the compatibility mode? -- Squirrel Conspiracy Information Page http://www.people.memphis.edu/~uglmiller/home.htm -- Archives available at http://www.biglist.com/lists/stella/archives/ E-mail UNSUBSCRIBE in the body to stella-request@xxxxxxxxxxx to be removed.
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