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Back to forum See the full topic Go to last reply Posted By TLC on 2007-01-08 17:36:27  Re: Plus/4 Expansion port... That's the other thing I asked myself amongst the question of A9... Also, what if interrupts in the CPU are disabled (SEI)?... A9 would still be asserted... The ROM would still be paged in... Back to top Copyright © Plus/4 World Team, 2001-2024