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. The CHR$26 would activate a different character set for Katakana and Kanji characters. Since a column is 7 pixels high, the least significant bit of every byte is ignored. Every byte defines the pixel pattern for a column. They could be defined by issuing the command DEF CHR$n="HHHHHHHHHH" where n ranges from 252 to 255 and the Hs are 10 hexadecimal digits 5 bytes. The command GOTO "LIB0:0400" executes a self-test program.Ĭharacters 252 to 255 were user defined. The internal function library was programmed in BASIC itself and could be extracted with a BASIC decompiler.Īny 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.
POKE 1867.0 → would delete any user PASSWORD POKE PEEK8027+256*PEEK8028.26 → would hide contents of MEMO, much like a RESET ALL would do, but without losing the programs POKE PEEK8027+256*PEEK8028.32 → would recover contents of MEMO after a RESET ALL Memory area A000-FFFF was either available as user memory if expansion was present, or would simply repeat the contents of 0000-1FFF With a RP-33 expansion module, this model could be upgraded to a total of 64 kB.Ġ74B-0752 Reserved for storing the user PASSWORDĠ753-175A Reserved for internal functionsĢ000-9FFF User memory shared by MEMO and P0-p)ġ75D-1FE4 Reserved for internal functionsġFE5-1FFF Vectors pointing to P0-P9 memory startġ75B-175C Vector pointing to MEMO memory startĠ100-01FF Reserved for internal functionsĠ400-04FF Reserved for IN/OUT/CALC modes CALC$Ġ500-074A Reserved for internal functions
Casio fx-300ES Plus Natural-V.P.A.M Scientific Calculator New Battery. Later, Casio released the FX-880P, which had 32 kB built-in memory. Casio FX 880P scientific calculator personal computer. The calculator could print data and listings on any Centronics printer printing graphics required the Casio FP-100 plotter-printer. An optional Casio FA-6 interface board provided a cassette tape recorder connector, a Centronics printer connector and an RS-232C port. The built-in 8 kB memory could be expanded using the optional Casio RP-8 kB or RP-33 32 kB RAM expansion modules. The calculator had a BASIC interpreter, MEMO function, a formula library. Hitachi HD62002A01 FX-860P, FX880P: HD62002A03Ĭonnector with support for RS232 and Centronics only level converter for RS232, Centronics neededĢx 3V CR2032 lithium batteries as main power supplyġx 3V CR1220 lithium battery as memory backup RAM power supply The 601p/602p calculators were available next to their. This calculator is the successor to the non-alphanumeric Casio fx-501p and Casio fx-502p. The Casio fx-601 has 128 programming steps, the Casio fx-602 has 512 programming steps, more than enough for most tasks. Some indicators and a 5 digit 7-segment displayĬPU: VLSI at 1.228 MHz. This calculator came in two versions, the Casio fx-601p and the Casio fx-602p.