Casio Fx-850p User Manual Pdf
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The Casio FX-850P is a scientific calculator introduced in 1987 and sold until 1992.
Specifications[edit]
Casio Fx- 880p Manual Pdf. The fx-880P is the de luxe version of Casio's FX-850P, a comprehensive User Manual and User Guide for many equipments like mobile phones.
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- Jul 16, 2019 CASIO FX-850P MANUAL PDF. Travel CASIO FX-850P MANUAL PDF admin July 16, 2019 no Comments. A-PDF MERGER DEMO. Page Page Page Page Page Page Page The Casio FXP is a scientific calculator introduced in and sold until User’s manual at.
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- 2 lines with 32 5×7 characters LCD
- (some indicators and a 5 digit 7-segment display)
- 8 KB RAM (FX-860P: 24 KB, FX-880P: 32 KB)
- CPU: VLSI at 1.228 MHz. Hitachi HD62002A01 (FX-860P, FX880P: HD62002A03)
- Integrated speaker
- Internal slot for memory expansion (32 KB)
- Connector with support for RS232 and Centronics (only level converter for RS232, Centronics needed)
- LCD Driver: 2 x HD66100F
- 2x 3V CR2032 lithium batteries as main power supply
- 1x 3V CR1220 lithium battery as memory backup (RAM power supply)
From Wikipedia: The Casio FX-850P is a scientific calculator introduced in 1987 and sold until 1992. Specifications 2 lines with 32 5×7 characters LCD (some indicators and a 5 digit 7-segment display) 8 KB RAM (FX-860P: 24 KB, FX-880P: 32 KB) CPU: VLSI at 1,228MHz. Hitachi HD62002A01 (FX-860P, FX880P: HD62002A03) Integrated speaker Internal slot for memory expansion (32 KB) Connector with. Aug 31, 2017 Official Casio G-Shock Watch user instruction Manuals in PDF format. You can also choose search by module number. We will easily help you to get the G-Shock Manual you need.
User's manual at http://www.usersmanualguide.com/casio/calculators/fx-850p
The calculator had a BASIC interpreter, MEMO function, a formula library. The built-in 8 kB memory could be expanded using the optional Casio RP-8 (8 kB) or RP-33 (32 kB) RAM expansion modules. An optional Casio FA-6 interface board provided a cassette tape recorder connector, a Centronics printer connector and an RS-232C port. The calculator could print data and listings on any Centronics printer; printing graphics required the Casio FP-100 plotter-printer.
Later, Casio released the FX-880P, which had 32 kB built-in memory. With a RP-33 expansion module, this model could be upgraded to a total of 64 kB.
The memory layout is:
- 0000-00FF Screen memory
- 0100-01FF Reserved for internal functions
- 0200-02FF INPUT Buffer
- 0300-03FF CALCJMP, VALF Buffer
- 0400-04FF Reserved for IN/OUT/CALC modes (CALC$)
- 0500-074A Reserved for internal functions
- 074B-0752 Reserved for storing the user PASSWORD
- 0753-175A Reserved for internal functions
- 175B-175C Vector pointing to MEMO memory start
- 175D-1FE4 Reserved for internal functions
- 1FE5-1FFF Vectors pointing to P0-P9 memory start
- 2000-9FFF User memory (shared by MEMO and P0-p))
- A000-BFFF Repetition of 0000-1FFF
- C000-DFFF Repetition of 0000-1FFF
- E000-FFFF Repetition of 0000-1FFF
Memory area A000-FFFF was either available as user memory (if expansion was present), or would simply repeat the contents of 0000-1FFF
A few glitches are:
- POKE 1867,0 → would delete any user PASSWORD
- POKE PEEK(8027)+256*PEEK(8028),32 → would recover contents of MEMO after a RESET ALL
- POKE PEEK(8027)+256*PEEK(8028),26 → would hide contents of MEMO, much like a RESET ALL would do, but without losing the programs
The internal function library was programmed in BASIC itself and could be extracted with a BASIC decompiler.
Any function in the library can be executed from a regular BASIC program by using GOTO 'LIB0:NNNN' where NNNN is the function number (e.g. 5010 for prime factorization). The command GOTO 'LIB0:0400' executes a self-test program.
Characters 252 to 255 were user defined. They could be defined by issuing the command DEF CHR$(n)='HHHHHHHHHH' where n ranges from 252 to 255 and the H's are 10 hexadecimal digits (5 bytes). Every byte defines the pixel pattern for a column. Since a column is 7 pixels high, the least significant bit of every byte is ignored.
The CHR$(26) would activate a different character set for Katakana and Kanji characters. CHR$(27) would deactivate Kanji.
Via a serial cable the calculator could connect to a PC or to another Casio FX-850P, allowing the transfer to MEMO and stored programs.
See also[edit]
References[edit]
- ^http://www.ledudu.com/pockets.asp?type=64&serie=11
Casio Fx-850p User Manual Pdf 2 10
External links[edit]
Casio Fx 9750gii Instructions
- Casio FX-850P on MyCalcDB Database of 1970s and 1980s pocket calculators