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Add the concept of a clocked chip

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This commit is contained in:
Adrian Conlon
2019-01-10 22:23:51 +00:00
parent 71daf6aa38
commit 9755a5fcd2
8 changed files with 44 additions and 20 deletions
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6
MC6809/test/Board.cpp
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@@ -118,7 +118,9 @@ void Board::updateAciaPins(const EightBit::Chip::PinLevel rw) {
bool Board::accessAcia() {
ACIA().raise(ACIA().E());
const bool accessed = ACIA().tick();
const bool activated = ACIA().activated();
if (activated)
ACIA().step();
ACIA().lower(ACIA().E());
return accessed;
return activated;
}