[squeak-dev] 1401 Emulator?

tim Rowledge tim at rowledge.org
Sun May 18 17:03:30 UTC 2014


On 18-05-2014, at 6:03 AM, Hans-Martin Mosner <hmm at heeg.de> wrote:

> Am 18.05.2014 09:49, schrieb Casey Ransberger:
>> Original context mercilessly scrubbed for brevity. 
>> 
>> I've *always* wanted to play with punched cards. Never ran across a machine that read them, though. Then I saw this thread...
>> 
>> Okay so in the last week I had an itch to emulate something. I was thinking 6502, and spent a bit of time reading up on the architecture, but I haven't written any code yet, which leads me to...
>> 
>> Did anyone ever do the 1401 emulator?
>> 
>> --Casey
> I have done a (somewhat incomplete) 8080 emulator to run space invaders in Squeak a loooong time ago. It wasn't a pure
> interpreter but did some sort of trace compiling to Smalltalk methods so its speed was somewhat usable even on my slow
> PowerPC Mac where I ran Squeak at the time. Nowadays it should be no issue to just run a simple emulator at original
> processor speeds.

That’s pretty cool. I guess we should throw in the Alien idea too - Bochs & GdbARM simulators cover lot of ground and I’m pretty sure that other emulators could be hacked to work in the same manner. Anyone for a 6502 Cog? 


tim
--
tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Strange OpCodes: PDH: Page to Disk for the Hell of it




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