Forum

Xerxes

dprtl a écrit : ↑
25 avr. 2021 18:55
My first version was very inefficient.

I'am afraid that the test code of the n-queens benchmark for the ClassPad 300+, ClassPad 330 and
FX-CP400 has the same problem, because I also missed to use setdecimal at that time. I think I have
to remove the results of these calculators.

Xerxes

dprtl a écrit : ↑
23 avr. 2021 10:48
Ici, le programme met 46s à dérouler ses 26 itérations. Ce qui confirme ce que tout le monde sait déjà : la FX-CP400 n'est pas un foudre de guerre.

Salut Daniel, have you also checked the execution time using setdecimal instead of approx?

Xerxes

Danny a écrit : ↑
27 oct. 2020 10:33
Mais on dirait quand même que c’est difficile d’avoir une chronologie + précise au niveau de chaque modèle, tellement ils en ont sortis

03.1995 CFX-9800G

03.1996 CFX-9950G

05.1997 CFX-9850G Plus

08.1997 CFX-9970G

Xerxes

Replycant a écrit : ↑
12 oct. 2020 01:52
@XerXes, glad to see you here too.

Ditto! Very nice project. I didn't expect to see my AI-1000 ROM dump in a ROM card. I'm also interested in some cards, but obviously I have to wait.

Xerxes

BASIC: https://casio.ledudu.com/pockets.asp?type=2178&lg=eng

Prolog: https://casio.ledudu.com/pockets.asp?type=2176&lg=eng

Xerxes

Salut, some informations about the ROMs: The OM-52C is identical to the built-in C of the PB-2000C. A Lisp ROM card for the PB-2000C doesn't exist, but I've dumped the ROM of the AI-1000 for Piotrs PB-2000C emulator. I don't have the manual anymore, but here is a list of all commands mentioned there...

Xerxes

Speed ups by software are marked as "Fast Mode" and by hardware modification as "Turbo".
I received the results of the modified PC-G850V from Japan and was a little bit surprised
about the modification from 8 to 32 MHz.

Xerxes

The FX-190 has no K vars, but Viktor Toth from rskey.org found an elegant solution: 01 Min 02 * 03 ( 04 MR 05 - 06 1 07 ) 08 x>0 09 1 10 = Usage example: 69 P1 And an improved version for the FX-180P that uses a K var instead of M, based on his idea: 01 Kin1 02 * 03 1 04 Kin-1 05 Kout1 06 x>0 07 x<-...

Xerxes

For more comfort, we need 2 program areas and some more steps:

Code : Tout sélectionner

P1:
01  -
02  -
03  1
04  Kin1
05  x<->y

Code : Tout sélectionner

P2:
01  Kin*1
02  =
03  x>0
04  Kout1

Usage exampe: 69 P1 P2

Xerxes

Marge a écrit : ↑
03 févr. 2018 00:59
I wonder... 3-steps, well, seems impossible to me...

It's possible on the FX-180P but somewhat awkward to use:

Code : Tout sélectionner

01  Kin*1
02  =
03  x>0

Usage example: 69 - - 1 Kin1 x<->y P1 Kout1

Xerxes

The circular program execution of the TI-62 allows a very short code: 00 STO 0 01 * 02 INV DSZ 03 R/S 04 RCL 0 Usage example: 69 RST R/S Even shorter, but less comfortable: 00 * 01 INV DSZ 02 R/S 03 RCL 0 Usage example: 69 STO 0 RST R/S A small disadvantage to the nice code of zpalm for the TI-57 is...

Xerxes

Je note que la syntaxe du PEEK est un peu différente que celle trouvée par Xeres pour les Fx-730 etc Thanks to leglatin's findings about MODE18/19 on the PB-80, I was able to check the differences to the FX-730P. The decimal address range is 0-99999 and is mirrored at 65536. The address range of th...

Xerxes

Merci for your attention. It's a small optimization, that I've also used in the PB-1000/2000C code. It works, because the content of register A is always even at that point, so it's only necessary to increment bit 0 or set it to 1. Therefore I've rearranged the calculation of 3n+1 from n+n+n+1 to n+...

Xerxes

This is pretty fast for 640 kHz and a precision of 64 bit. I've checked the service manual of the 71B for more details about the CPU clock speed. If I'm not mistaken, the frequency of 640 kHz refers to the internal machine cycle, that consists of 4 clock cycles. So if we want to compare different C...

Xerxes

I've no experience with the assembly language of the HP Saturn CPU, but after a closer look at the somewhat unusual instruction set, I noticed an advantage for the Collatz calculation compared to the CPUs used in the CASIO or SHARP pockets, that allows a compact and fast routine for 64 bit binaries....

Forum

La recherche a retourné 291 résultats

Re: Misez p'tit, optimisez n°60 : Calculons Pi comme Viète

Re: Misez p'tit, optimisez n°60 : Calculons Pi comme Viète

Re: Casio graphiques couleurs

Re: Photo d'un module OM-53B

Re: Photo d'un module OM-53B

Re: Photo d'un module OM-53B

Re: Sharp PC-G850VS Turbo Mode

Re: Misez P'tit, Optimisez - N°32 (factorielle)

Re: Misez P'tit, Optimisez - N°32 (factorielle)

Re: Misez P'tit, Optimisez - N°32 (factorielle)

Re: Misez P'tit, Optimisez - N°32 (factorielle)

Re: [Casio PB-80] Exploration du système

Re: Misez p'tit Optimisez n°53 : la suite de Syracuse

Re: Misez p'tit Optimisez n°53 : la suite de Syracuse

Re: Misez p'tit Optimisez n°53 : la suite de Syracuse