The "Virtual" Challenger 1P

Above is a snapshot from the (updated) Virtual Challenger 1P, a Win32 application by Jeff Parsons that simulates an (almost) fully functional Challenger 1P.  It contains a complete 6502 emulator, along with all the logic required to simulate the C1P's 53-key software-polled keyboard, graphics character generator, 32x32 character display, and cassette port.

The Virtual Challenger 1P application is an original work, copyright 1998-1999 by DoubleBit Software.  It is not derived from any existing 6502 emulator or 6502-based system simulator, and is being made available free of charge to all interested parties.  However, to be useful and complete, it includes Challenger 1P ROM images (in the form of Win32 resources) that are not the work of DoubleBit Software, including an 8K BASIC-in-ROM that is copyright 1977 by Microsoft Co.  Given the age of the ROMs and the risk of deterioration, along with the non-profit nature of this application, we hope that all parties will treat the aforementioned ROM images as "fair use" copies.

To run the sample BASIC program included in the above ZIP file (a version of "HangMan"), run HANG.BAT.  When the Challenger 1P Video Display window appears, press C once, Enter twice, and then type LOAD followed by Enter.  After the BASIC program finishes loading, press the SPACEBAR, Enter, and then type RUN followed by Enter.

More Challenger 1P Information...

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