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Disk II: Don't overwrite data bus when not asked to

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Return DidNotLoad rather than 0xff from read_address on odd-numbered
addresses so that the data bus is not overwritten with 0xff on those
accesses.
This commit is contained in:
Ryan Carsten Schmidt 2023-12-05 10:03:52 -06:00
parent e9420fc48d
commit 01cf7462d5
1 changed files with 1 additions and 1 deletions
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2
Components/DiskII/DiskII.cpp
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@ -294,7 +294,7 @@ int DiskII::read_address(int address) {
break;
}
decide_clocking_preference();
return (address & 1) ? 0xff : shift_register_;
return (address & 1) ? DidNotLoad : shift_register_;
}
void DiskII::set_activity_observer(Activity::Observer *observer) {