Posted By
JamesC
on 2017-12-11
09:47:24
|  Re: Does the Plus/4 support some form of VARPTR() command?
If you are trying to benchmark in a way that others can rely on and replicate (basic Scientific Method stuff from high school), then consider copying ROM to RAM and then paging ROM out.
This allows you to either overwrite unwanted code, or insert jumps to patches elsewhere in the system ... and any other Plus/4 owner, or anyone running an emulator, can replicate your results without modifying their own setup.
Though I don't know how fair it is to benchmark the Plus/4 against other computers. Benchmarking against another Commodore 8-bit is fine, benchmarking against other 1MHz-ish CPUs is fine. But once you start optimizing the test system's OS, then someone running on a different CPU should be allowed to optimize their OS too ... which would skew the benchmarks, they are no longer a fair and reliable comparison.
Just my two cents, feel free to ignore. 
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