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Help from an owner of a Northstar Advantage to run test program

SunshineBoy

Member
Joined
Apr 16, 2014
Messages
12
I am writing an emulator for the NorthStar Advantage computer. The documentation says that it has 20k of video memory, but the circuit diagram shows 32k. The memory is organised
in two parts the first being 16k bytes, the second being either 4kbytes repeated 4 times, or another 16k bytes. I do understand that only 20k is displayable but I would like to
know which is the case so that I can make my emulation accurate.

I have written a program to check how the memory is organised (see attached) and wonder if someone would run this on a real northstar advantage and post the results. I have included the
source code for inspection. The program does not write to disk, but prints the result out to screen (or printer as will if control+p is used).

Anyone running an emulator may also be interested in the results for comparison.

Thank you
 

Attachments

  • advtest.zip
    2.8 KB · Views: 1
Have you tried your program on the NSE emulator? I have a real Advantage, but no time to set it up and transfer the program to it until later this fall.
 
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