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[draft] implemented rom switch by IO_CONTROL, removed debug print#6

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mk2s wants to merge 2 commits intoFujiNetWIFI:feat/fujinetfrom
mk2s:implement-rom-switch-by-IO_CONTROL
Draft

[draft] implemented rom switch by IO_CONTROL, removed debug print#6
mk2s wants to merge 2 commits intoFujiNetWIFI:feat/fujinetfrom
mk2s:implement-rom-switch-by-IO_CONTROL

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@mk2s mk2s commented Feb 21, 2026

We decided bit 7 of IO_CONTROL when 1 means "switch rom to bank" and the next bank we are switching to will be encoded in the lower bits(currently only bit 0) For now bits 6~1 are reserved.
We also decided IO_STATUS bit 6 means user rom is ready.
Added new fujinet-config.rom

I will look into making the debug log output off by default, but optionally able to turn on from OpenMSX console.
Matching config change is: FujiNetWIFI/fujinet-config#168
matching change in fujiversal: FozzTexx/fujiversal#1

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