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Clever trick! The PB-1000 doesn't support the command SYSTEM SET, but key codes can be POKEd into the keyboard buffer. The PB-1000 version of your program could look so: 10 INPUT"F(X)=";F$ 20 PRINT"50 Y=";F$ 30 K=&H1E:GOSUB100 31 K=&H1E:GOSUB100 32 K=&H0D:GOSUB100 33 K=&H52:GOSUB100 34 K=&H55:GOSUB1...

Daniel, thank you very much for the bug report! A zero byte terminating the tokenized input string was placed at a wrong memory location. I've updated the program and I hope it's OK now. Jean-Philippe, thanks for the compliment! As for the link, I propose to point it to the forum message, of course ...

I have tried to write my own implementation of the function VALF for the Casio PB-1000. It's much smaller than the program from the Airbug.one's web site - only 61 bytes instead of 321. Here's the source code which can be assembled with the PB-1000 built-in assembler: ORG &H7000 START &H7000 DB &HEE...

Casio FX-850P Service Manual
http://manib.ma.funpic.de/de/calculator ... /index.htm

Perhaps the HP-28S manual would be useful? It can be downloaded here:
http://www.hp41.net/forum/viewtopic.php?f=8&t=103

Piotr

Thanks for the welcomes!

Hello all, I regularly read the forum with the help of Google translate service, but I don't speak French, sorry. To ledudu, The PB-1000 can save BASIC programs in two formats: plain ASCII text - with the command SAVE "filename",A internal binary form (tokenized) - with the command SAVE "filename" T...