Vintage programmable calculators Hacking of vintage programmable calculators. Description of hardware, internal data structures, file formats. Construction projects of various interfaces and other accessories. http://www.pisi.com.pl/piotr433/index.htm http://www.pisi.com.pl/piotr433/calc4.gif Vintage programmable calculators http://www.pisi.com.pl/piotr433/index.htm 122 52 Vintage programmable calculators Tue, 07 Mar 2006 00:00:00 +0000 en piotr433@pisi.com.pl (Piotr Piatek) piotr433@pisi.com.pl (Piotr Piatek) Wed, 18 Aug 2010 13:59:44 +0000 RSS Creator ver. 2.0 (http://www.fuw.edu.pl/~msadow/rsscreator/) http://blogs.law.harvard.edu/tech/rss Simple graphics routines for the Elektronika MK-90 A set of routines performing basic graphics functions:

  • plotting a dot
  • line drawing using the Bresenham's algorithm
  • circle drawing using the midpoint algorithm
]]> http://www.pisi.com.pl/piotr433/mk90mc1e.htm#graphics Mon, 02 Nov 2009 18:11:06 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20091102181304550 Service manual for the Casio PB-2000C http://www.pisi.com.pl/piotr433/index.htm#pb2000 Thu, 26 Nov 2009 12:45:00 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20091126124525070 Available release 12 of the Casio MD-100 Floppy Disk Drive emulator
  • fixed a bug concerning renaming of disk files
  • changed program name to Md100srv.exe to avoid name conflict with the MD100.EXE utility for manipulating the floppy disk images
    • ]]>     http://www.pisi.com.pl/piotr433/md100eme.htm Wed, 06 Jan 2010 11:59:27 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100106120405680     Casio PB-2000C ROM disassembly Partially commented external 64kB ROM disassembly (only the first half of the code so far, without the C interpreter). The file will be occasionally updated without further notice. http://www.pisi.com.pl/piotr433/index.htm#pb2000 Sun, 17 Jan 2010 19:03:59 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100117191343530 Casio FX-8000G assembly language Updated files due to introduction of the indirect register addressing:

    ]]>     http://www.pisi.com.pl/piotr433/index.htm#fx8000g Mon, 17 May 2010 11:11:27 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100517111253140     Casio FX-8000G assembly language [2] What's new:

    • indirect access to the register arrays
    • interrupts
    • new instructions NOP, CANI, TRP
    • fixed operands of the instructions CMPM, BYUM, DIUM, ROUM, INVM, BYDM, CMPBM, DIDM

    Updated files:

    ]]>     http://www.pisi.com.pl/piotr433/index.htm#fx8000g Sat, 12 Jun 2010 15:59:40 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100612155940750     Prolog language card OM-51P New file: ROM image from a very rare Prolog language card OM-51P for use with the PB-2000C emulator. http://www.pisi.com.pl/piotr433/pb2000ee.htm Thu, 05 Aug 2010 19:35:25 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100805193538550 Executing machine code on the Casio PB-2000C The PB-2000C supposedly doesn't permit to execute arbitrary machine code, but can be tricked into it... http://www.pisi.com.pl/piotr433/pb2000xe.htm Wed, 18 Aug 2010 13:59:32 +0000 piotr433@pisi.com.pl (Piotr Piatek) 20100818135936560