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Add very faulty key input.

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This commit is contained in:
Thomas Harte 2024-03-23 15:58:48 -04:00
parent 5ccb18225a
commit eb34c38332
1 changed files with 16 additions and 2 deletions
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18
Machines/Acorn/Archimedes/Keyboard.hpp
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@ -16,8 +16,11 @@ namespace Archimedes {
struct Keyboard {
Keyboard(HalfDuplexSerial &serial) : serial_(serial) {}
void set_key_state([[maybe_unused]] int row, [[maybe_unused]] int column, [[maybe_unused]] bool is_pressed) {
void set_key_state(int row, int column, bool is_pressed) {
const uint8_t prefix = is_pressed ? 0b1100'0000 : 0b1101'0000;
queue_.push_back(static_cast<uint8_t>(prefix | row));
queue_.push_back(static_cast<uint8_t>(prefix | column));
dequeue_next();
}
void update() {
@ -35,6 +38,10 @@ struct Keyboard {
serial_.output(KeyboardParty, 0x81); // TODO: what keyboard type?
break;
case BACK:
dequeue_next();
break;
default:
printf("Keyboard declines to respond to %02x\n", input);
break;
@ -45,6 +52,13 @@ struct Keyboard {
private:
HalfDuplexSerial &serial_;
std::vector<uint8_t> queue_;
void dequeue_next() {
if(queue_.empty()) return;
serial_.output(KeyboardParty, queue_[0]);
queue_.erase(queue_.begin());
}
static constexpr uint8_t HRST = 0b1111'1111; // Keyboard reset.
static constexpr uint8_t RAK1 = 0b1111'1110; // Reset response #1.
static constexpr uint8_t RAK2 = 0b1111'1101; // Reset response #2.