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Provides full serial input.

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This commit is contained in:
Thomas Harte 2021-11-07 05:19:16 -08:00
parent 4fc25fb798
commit 31e22e4cfb
3 changed files with 12 additions and 1 deletions
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5
Machines/Amiga/Chipset.cpp
View File

@ -500,6 +500,11 @@ template <bool stop_on_cpu> Chipset::Changes Chipset::run(HalfCycles length) {
assert(line_cycle_ < line_length_ * 4);
}
// Advance the keyboard's serial output, at
// close enough to 1,000,000 ticks/second.
keyboard_divider_ += changes.duration;
keyboard_.run_for(keyboard_divider_.divide(HalfCycles(14)));
// The CIAs are on the E clock.
cia_divider_ += changes.duration;
const HalfCycles e_clocks = cia_divider_.divide(HalfCycles(20));

3
Machines/Amiga/Chipset.hpp
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@ -103,9 +103,10 @@ class Chipset: private ClockingHint::Observer {
private:
friend class DMADeviceBase;
// MARK: - E Clock follow along.
// MARK: - E Clock and keyboard dividers.
HalfCycles cia_divider_;
HalfCycles keyboard_divider_;
// MARK: - Interrupts.

5
Machines/Amiga/Keyboard.hpp
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@ -12,6 +12,7 @@
#include <cstdint>
#include "../KeyboardMachine.hpp"
#include "../../Components/Serial/Line.hpp"
#include "../../ClockReceiver/ClockReceiver.hpp"
namespace Amiga {
@ -89,6 +90,10 @@ class Keyboard {
void set_key_state(uint16_t, bool);
void clear_all_keys();
void run_for(HalfCycles duration) {
output_.advance_writer(duration);
}
private:
enum class ShiftState {
Shifting,