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Enhances the Disk II's ability to sleep.

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Also enables Disk II sleep observation in the Oric.
This commit is contained in:
Thomas Harte
2018-05-19 23:15:28 -04:00
parent 4952657b31
commit e482929da8
3 changed files with 31 additions and 10 deletions
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Components/DiskII/DiskII.cpp
+12 -3
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@@ -126,10 +126,19 @@ void DiskII::run_for(const Cycles cycles) {
void DiskII::set_controller_can_sleep() {
// Permit the controller to sleep if it's in sense write protect mode, and the shift register
// has already filled with the result of shifting eight times.
bool controller_could_sleep = controller_can_sleep_;
controller_can_sleep_ =
(inputs_ == (input_command | input_flux)) &&
(shift_register_ == (is_write_protected() ? 0xff : 0x00));
if(is_sleeping()) update_sleep_observer();
(
(inputs_ == input_flux) &&
!motor_is_enabled_ &&
!shift_register_
) ||
(
(inputs_ == (input_command | input_flux)) &&
(shift_register_ == (is_write_protected() ? 0xff : 0x00))
);
if(controller_could_sleep != controller_can_sleep_)
update_sleep_observer();
}
bool DiskII::is_write_protected() {