Laurens Holst wrote:
> ...
> !!! GRUWEL GRUWEL !!!
--> for non-Dutch readers: !!! HORRIFYING HORRIFYING !!!
>
> Issuing an IN on the mapper-ports is against the MSX-standard!!!
> NEVER >>IN<< the Mapper-ports. The result is ABSOLUTELY unreliable and
> machine/mapper-dependant. One computer inverts the result, another sets the
> highest bits and other computers always return zero or crap.
>
The debugger in Compass uses IN A,(mapperport) to trace/emulate IN
instructions of mapperports :)
Jon
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