Posted By
gpz
on 2015-12-19
22:59:52
|  Re: unused I/O location for debug purposes
ok, so what you say could be used as a last resort.
no, ideally it shouldnt be emulator only - although its an option. the main requirement is that writing to that location never has any side effects, even on real hardware (it must be possible to run test programs unmodified on real hardware). as a bonus, it would be "nice" if the write to that location can also be "seen" at the expansion port so that in theory one could build a real cartridge that does what the debug stuff in the emulator does. (ultimatively i want to do that.... because the testsuite must be tested too  )
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