Checking archive.org of trsrockin.com, experiments of the glitch items 4F, 5F and 7F 'totally crashes the entire emulator' with an unknown opcode error, and a screenshot given, when '4F' is used. 'unknown opcode fc at 801a'
(hmm, to go a little offtopic about trsrockin.com, it's actually parked now, i wonder if someone could register it and redirect it here or something

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