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Consolidates TODO.

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This commit is contained in:
Thomas Harte 2021-07-03 13:08:53 -04:00
parent 6b46212a4e
commit 196651d9aa
1 changed files with 2 additions and 7 deletions
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9
Machines/Enterprise/EXDos.cpp
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@ -8,6 +8,8 @@
#include "EXDos.hpp" #include "EXDos.hpp"
// TODO: disk_did_change_ should be on the drive. Some drives report it.
using namespace Enterprise; using namespace Enterprise;
EXDos::EXDos() : WD1770(P1770) { EXDos::EXDos() : WD1770(P1770) {
@ -37,8 +39,6 @@ void EXDos::set_disk(std::shared_ptr<Storage::Disk::Disk> disk, size_t drive) {
// b0 drive ready // b0 drive ready
void EXDos::set_control_register(uint8_t control) { void EXDos::set_control_register(uint8_t control) {
// printf("Set control: %02x\n", control);
if(control & 0x40) disk_did_change_ = false; if(control & 0x40) disk_did_change_ = false;
set_is_double_density(!(control & 0x20)); set_is_double_density(!(control & 0x20));
@ -58,21 +58,16 @@ void EXDos::set_control_register(uint8_t control) {
} }
uint8_t EXDos::get_control_register() { uint8_t EXDos::get_control_register() {
// TODO: how does disk_did_change_ really work? Presumably
// it latches RDY?
const uint8_t status = const uint8_t status =
(get_data_request_line() ? 0x80 : 0x00) | (get_data_request_line() ? 0x80 : 0x00) |
(disk_did_change_ ? 0x40 : 0x00) | (disk_did_change_ ? 0x40 : 0x00) |
(get_interrupt_request_line() ? 0x02 : 0x00) | (get_interrupt_request_line() ? 0x02 : 0x00) |
(get_drive().get_is_ready() ? 0x01 : 0x00); (get_drive().get_is_ready() ? 0x01 : 0x00);
// printf("Get status: %02x\n", status);
return status; return status;
} }
void EXDos::set_motor_on(bool on) { void EXDos::set_motor_on(bool on) {
// TODO: this status should transfer if the selected drive changes. But the same goes for
// writing state, so plenty of work to do in general here.
get_drive().set_motor_on(on); get_drive().set_motor_on(on);
} }