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Correct ID bit placement, multiplex with motor state.

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The latter per my reading of http://www.primrosebank.net/computers/amiga/upgrades/amiga_upgrades_storage_fdis.htm
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Thomas Harte 2021-10-08 04:05:57 -07:00
parent 5899af0038
commit 616ccbb878
1 changed files with 4 additions and 2 deletions
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6
Machines/Amiga/Chipset.cpp
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@ -1049,6 +1049,7 @@ void Chipset::DiskController::process_input_bit(int value) {
}
void Chipset::DiskController::set_sync_word(uint16_t value) {
LOG("Set disk sync word to " << PADHEX(4) << value);
sync_word_ = value;
}
@ -1160,11 +1161,12 @@ uint8_t Chipset::DiskController::get_rdy_trk0_wpro_chng() {
auto &drive = get_drive();
const uint8_t active_high =
((combined_id & 0x8000) >> 11) |
((combined_id & 0x8000) >> 10) |
(drive.get_motor_on() ? 0x20 : 0x00) |
(drive.get_is_ready() ? 0x00 : 0x02) |
(drive.get_is_track_zero() ? 0x10 : 0x00) |
(drive.get_is_read_only() ? 0x08 : 0x00);
return 0xff & ~active_high;
return ~active_high;
}
void Chipset::DiskController::set_activity_observer(Activity::Observer *observer) {