Hey!
And I thought I was being ignored. :-o
I will have to dig out my M100 to confirm this.
As far as I can see there are 2 differences that happened during Model 100
production:
- update of the character set
- update of the trig-table = the famous pi-error
AFAIR, the M100 I have has a Serial number beginning with 4, placing the
production date in 1984. (Big Brother is watching us!) As far as I know, all
the M100 that the rest of you guys use, have serial numbers from 1983. Now the
question is: did the 2 changes (see above) occur simultaneous? That can only be
answered by testing every machine we have and checking production dates. Like I
proposed in 2013... OR check out the product number: mine is (I just found the
message, see below) 26-3801A, the A stamped. That might also give an indication.
But first, like I said, I will dig out my M100, M102s and confirm all this.
Greetings from the TyRannoSaurus
Jan-80 """""
@ work ( @ @ )
--------------.ooo--(_)--ooo.---
-----Original Message-----
From: m100-boun...@lists.bitchin100.com
[mailto:m100-boun...@lists.bitchin100.com] On Behalf Of VANDEN BOSSCHE JAN
Sent: maandag 10 juni 2013 09:28
To: Model 100 Discussion
Subject: Re: [M100] M100 character set(s) ?
Hello,
-----Original Message-----
From: Jan Vanden Bossche
> I have a Model 100 with the same character set as all my
> 102s and 200s. And it is produced in the US. I think it's
> improbable they split export and domestic production that
> strict.
Excuse me. Like all other Model Ts, my model 100 was "custom
manufactured in Japan for Tandy Corporation".
Still, I checked yesterday, it has the model 200/102 character set.
It has the product number 26-3801A (the A stamped) and a s/n that starts
with a 40...
Greetings from the TyRannoSaurus
Jan-80 """""
@ work ( @ @ )
--------------.ooo--(_)--ooo.---
CORRECT ANSWER TO SPAM = [DELETE]
Have some more PI ;-)
1 CLS:CLEAR:SCREEN,0
10 PRINT:L=0:GOSUB80:PRINT
20 P1=4*ATN(1)
22 PRINT" = 4*ATN(1) =";P1
24 L=80:GOSUB80
30 P2=2*ATN(3D13):PRINT
32 PRINT" = 2*ATN(3D13) =";P2
34 L=160:GOSUB80
40 PRINT@260,CHR$(136):L=261:GOSUB80
42 PRINT@261,;
50 A$=INPUT$(1)
52 END
80 R=INT(L/40):C=L-R*40:X=C*6:Y=R*8
82 LINE(X,Y+1)-(X+4,Y+1)
84 LINE(X+1,Y+2)-(X+1,Y+6)
86 LINE(X+3,Y+2)-(X+3,Y+5)
88 PSET(X+4,Y+6):REM print PI at L
90 RETURN
-----Original Message-----
From: M100 [mailto:m100-boun...@lists.bitchin100.com] On Behalf Of Comet
Sent: zaterdag 15 augustus 2015 23:14
To: Model 100 Discussion
Subject: Re: [M100] math error
Hi Ron, you wrote on Friday, August 14, 2015 4:20 AM:
The system ROM of the Model 100 laptop has one error within its logarithm
table. Rather than "some early model 100s" being afflicted, my
understanding is that the erroneous logarithm table is present in the system
ROM of all Model 100 laptops regardless of manufacturing date.
Apart from it being a trigonometric (not logarithmic) table in error, it
might be that some "late model 100s" are unafflicted, given that it is known
that Model 100s exist with a "cleaned up" character set based on the [early]
Model 102/200, as noted by Jan Vanden Bossche.
I am unaware if it has been confirmed/disproved whether such "late model"
Model 100s universally have the ATN error.
A relevant posting regarding variant models is excerpted below:
From: Jan Vanden Bossche
Sent: Saturday, June 08, 2013 11:45 AM
To: 'Model 100 Discussion'
Subject: Re: [M100] M100 character set(s) ?
I have a Model 100 with the same character set as all my 102s and 200s. And
it is produced in the US. I think it's improbable they split export and
domestic production that strict.
It's far more than [the PI symbol].
The difference between the early and the later characters set - the later
being implemeted in the 200 and the 102 too - goes beyond the PI symbol. The
whole character set is 'cleaned up'. The best way to see it is by running my
DIGICS.BA program on an early M100 and a later one, or a 102, and compare
the output.
One thing, e.g., is that all accented characters are on the correct baseline
in the second character set. They're all over the place in the first.
Actually, I once asked that all people ran the PI-program, send me the
output for the calculation of PI, and the result for chr$(136). That way we
could tell:
- if the calculating ROM error is associated with the early character set
- what the serial number was when it occurred.
DIGICS and PI are available in the Club100 Member Upload Library/Jan Vanden
Bossche.
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