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Classic99 - v399.041

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26569 downloads total
windows.gif   Download emulator, source and documentation. (24 mb) (#1) since 2020-11-19

I have a lot of database entries to fill in. ;)

Open source (but restrictive license) emulator including ROMs licensed by Texas Instruments - see documentation for license and restrictions.

Tips and tricks video:

Last Updates (max 5)

  • Clear the background when toggling aspect ratio

  • full screen mode now shares the desktop resolution
  • maintain aspect ratio now applies on maximized and full screen windows
  • minor TIPI improvements (recvmsg, mouse buttons)

  • update fbForth to v13
  • update RXB to 2020D
  • Fix missed breakpoints that come too close together after pressing F1 to continue
  • very basic and mostly broken TIPI simulation (NOT emulation!!). No bug reports on this will be entertained.

  • added autodetection of ROM cartridge boot bank
  • add better guesses on C.BIN versus 8.BIN versus nothing

  • Rewrote memory system to improve read-before-write cycle counting
  • Corrected timing on stcr, ab,sb,socb,szcb,xop,b, and bl

  • Notes
    Source code is now on Github at

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    Last Update:2021-03-28

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