From: god_free_jones@yahoo.com   
      
   On Sun, 24 May 2009 18:04:36 +1000, "John Benson"  wrote:   
      
   >"N Morrison"  wrote in message   
   >news:75c61708-92f9-4074-b301-584a7e7489b2@y7g2000yqa.googlegroups.com...   
   >On May 23, 12:31 pm, asc135  wrote:   
   >> I'm curious why there hasn't been any mention (at least, that I've   
   >> found) on this newsgroup related to the recent discovery of the Model   
   >> III Level I BASIC ROM Image. Does anyone know if David Cooper will be   
   >> making it available to the community?   
   >>   
   >> By the way, as someone who has been searching for over a dozen years   
   >> now, my congratulations to all those involved in its ultimate   
   >> apprehension.   
   >>   
   >> Amardeep   
   >   
   >IIRC, a source was posted on the Yahoo group TRS-80   
   >   
   >Well, folks, the Model III, Level I ROM is no longer an extinct species! I   
   >have purchased a Model III, Level I machine and have made an image of it's   
   >ROM.   
   >   
   >Before I continue, please allow me to thank John Benson of Australia for   
   >locating this machine. He notified me of the machine for sale so that I   
   >could purchase it. Without his locating the machine, I would never have been   
   >able to obtain the machine and image the ROM.   
   >   
   >Now, onto the goodies...I' d like some experts to take a look at it. It does   
   >run in David Keil's Model III/4 emulator, BTW. The download below is large   
   >because it contains notes and photos as well as the ROM image itself. It   
   >appears that the ROM is a 4K ROM, even though it's plugged into the ROM A   
   >socket on the Model III motherboard (which supports 8K ROMs). I say this   
   >because when I read the ROM, the A12 line *appeared* to be ignored. This   
   >makes sense because Model I, Level I ROM was only 4K. But, it'd be nice to   
   >see a datasheet on this ROM. I couldn't find one anywhere. The chip number   
   >is SCM91616P, which is a Motorola ROM. There's a closeup of the ROM in the   
   >download.   
   >   
   >So, does anyone have a datasheet for the SCM91616P? Does it look like I have   
   >a complete ROM image? I did some fiddling around and it seemed to completely   
   >work in the emulator. The actual machine doesn't work, so until I repair it,   
   >I can't fire up the actual Model III.   
   >   
   >http://download. marmotking. com/model3_ level1.zip   
      
   That link does not work because you put spaces in.   
   Try this >http://download.marmotking.com/model3_level1.zip   
      
   Level 1 is unusable. Please make a level 3 emulator.   
      
   >Enjoy.   
   >   
   >marmotking   
      
   Barry   
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