About the expansion to 1MB, I've heard that it doesn't work seamlessly... it's correct? There is another way to expand the internal memory?
It doesn't work with non-standard software (that is,
software that reads the mapper I/O ports), but it has no problem with
MSX-DOS2 programs (and other correctly written software). On non-standard
software only 512kB is visible.
What is the "STANDARD" way to know how much Mapped Memory do I have, and in which slot(s) they are?
Standard: a process involving setting a byte in all mapper pages and iterating through them until you see repetition of a number you wrote earlier (or something similar).
Non-standard: something involving reading out one of the I/O ports #FC-#FF.
~Grauw
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