60 replies to this topic

[Orwell]

RPN is a stack-based way to evaluate expressions:

"1+2" works like that:

1
PUSH
2
PUSH
ADD
// 3 is now at the top of the stack

It's useful for large expressions:
"(2+6)*(7-(4/2))" becomes

2
PUSH
6
PUSH // stack: 6,2
ADD // stack : 8
7
PUSH
4
PUSH
2
PUSH // stack: 2,4,7,8
DIVIDE // stack: 2,7,8
SUBSTRACT // stack: 5,8
MULTIPLY // stack: 40

[huhn_m]

isn't this called a stack machine?

What does it stand for? (I mean like CIA stands for Central Intelligence Agency)

[dscoshpe]

http://en.wikipedia.org/wiki/Rpn

- dscoshpe -

[Marco]

isn't this called a stack machine?
What does it stand for? (I mean like CIA stands for Central Intelligence Agency)

Reverse Polish Notation. Yeah, that's also exactly the principle a stack machine works like (though RPN is much older) so RPN is very easy to implement. First electronic desktop calculators in the 60s (which cost more than a car back then) all had RPN.

Btw, first RPN calc ever had very intresting design: the Friden 130 (read an article about it somewhere on a computer museum site once; can't find it anymore but here's another site: http://www.oldcalcul.../friden130.html ), released in 1961(!), was built with transistors yet and had a CRT monitor(!) that showed the complete stack (able to hold 4 numbers) using vector graphics for the digits - nice eh?

Some months later, first HP calc was released which had exactly the same design - except that the stack was able to hold 3 numbers only

[The_AFX_Master]

LOL!! ..THANKS GOD!!, NOTHING SPEAKS IN RPN

[DJ Omnimaga]

anyone started making games for this calc? if this is released yet of course though

[casiokaki]

anyone started making games  for this calc? if this is released yet of course though

<{POST_SNAPBACK}>

I have seen the emulator in action albeit an older prototype one. The programming language is same as 9850 so games for 9850 or AFX are OK for this new calc too.

casiokaki

[huhn_m]

you probably need to compuile the program to a disk the
calculator can read, just like it is with the AFX models. ...

[Marco]

If the 9860 really has a Classpad CPU inside, it's a completely other system than AFX so you can't run Add Ins written for AFX on it. Not only that it's another file format (*.cfx <--> *.g1a), but even the program code is incompatible cause the classpad CPU (for sure) has another instruction set and also the OS won't be the same anymore.

So also conversion tools transforming *.cfx into *.g1a are impossible, sorry. You need to get 9860 Add Ins from Casio's homepage (if there are some yet) or write your own ones using the developper's kid delivered with the calc on a CD. Probably you also have a special COMM software for 9860 Add Ins there.

What you CAN convert are BASIC files (*.cat into *.g1r); Casio basic is still compatible and most CFX 9850 / FX / AFX programs will run also on the 9860, but you can't transmit *.g1r with FA-123. You need a special COMM software too, probably also on that CD.

[casiokaki]

To do the conversion you must use the new COM FA-124. You can convert Basic, List and Matrix files to and from 9860 to the older graphics calculators like 9850 and AFX. See whether you have FA-124 in that CD.

casiokaki

[AlephMobius]

Hey,
The RPN program is mine. I quit working on it for the summer but it is basically finished except the last chapter of documentation. Maybe you can use the C source when the SDK is released. Let me know if there is any other way I can help you.

[huhn_m]

if there are official add-ins available you can also try to figure out the protocoll and the packaging format and use these to be the first
to write a Transfer program for EXE-> Calc for your model

[CakkuZ[FIN]]

Also be aware, that the Classpad is cheaper than this calc. (at least till now).
This is probably due to the SD slot.

Are you sure, that new calc costs like 170? in Finland and i'm quite sure classpad costs more here (fx1.0+/2.0+ is like 120? here)

[huhn_m]

Pricing information by Dynatech (cheapest for Germany I think):

CFX 9850 GC+: 72?
CP 300: 145?
CP 300+: 160?
FX 1.0+: 86?
AFX 2.0+: 90?
CFX 9860G: 128?
CFX 9860G SD: 145?

[amos89]

But the Basic language of it is very very quike!!!
I wrote a programm to find the prime-factors of a number and this programm has the same speed as the programm in TOUCH using assembler/c.
Some times it is too quike as exemple:
"text"
do
Getkey->k
LpWhile k=0
and you can't see the text if you press a button because of the ?too quike? Locate fonction

[2072]

What method did you use in your program to find prime factors? In TOUCHE it checks only odd numbers and uses the square root test.