Re: [M100] math error

2015-09-14 Thread Ron Wiesen
Jan asked: Would changing the main ROM - to correct the trig error - also modify the character set? Or are they located in different chips? There is only one 32K system ROM. So the system ROM in your Model 100 definitely is "repaired" in the sense that the trig error is corrected and it includes

Re: [M100] M100 upgrades

2015-09-14 Thread Stephen Adolph
I think you are confusing REX with QUAD. REX does not replace the RAM, but QUAD does. ..Steve On Mon, Sep 14, 2015 at 3:48 AM, VANDEN BOSSCHE JAN < jan.vandenboss...@vivaqua.be> wrote: > I think you should get one or the other, not both. AFAIK, once active, the > REX replaces the active memory

Re: [M100] math error

2015-09-14 Thread VANDEN BOSSCHE JAN
You might be right, but would't you rather wait untill I've opened up my '100 to get proof? But tell me, why bother to 'repair' a Model 100? Why did the previous owner do that? - Because the machine is, and always has been, a QWERTY-machine. (I can tell by the yellowing) So, getting the

Re: [M100] math error

2015-09-14 Thread VANDEN BOSSCHE JAN
Found my Model 100 back. //Strange, that I as a collector, have several Models 102 and 200, but only one Model 100// Checked again: - it doesn't have the trig error - it does have the Pi character But it also has a "repaired" sticker on the back. I don't know what the repair was, unless there