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Add drive indicator lights.

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This commit is contained in:
Thomas Harte 2023-11-29 11:31:37 -05:00
parent e034daa6c8
commit be842ee2f1
1 changed files with 29 additions and 35 deletions
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64
Machines/PCCompatible/PCCompatible.cpp
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@ -60,6 +60,12 @@ class FloppyController {
drives_[2].motor = control & 0x40;
drives_[3].motor = control & 0x80;
if(observer_) {
for(int c = 0; c < 4; c++) {
if(drives_[c].exists) observer_->set_led_status(drive_name(c), drives_[c].motor);
}
}
enable_dma_ = control & 0x08;
const bool hold_reset = !(control & 0x04);
@ -171,6 +177,15 @@ class FloppyController {
return 0x80;
}
void set_activity_observer(Activity::Observer *observer) {
observer_ = observer;
for(int c = 0; c < 4; c++) {
if(drives_[c].exists) {
observer_->register_led(drive_name(c), 0);
}
}
}
private:
void reset() {
printf("FDC reset\n");
@ -208,7 +223,14 @@ class FloppyController {
uint8_t track = 0;
bool side = false;
bool motor = false;
bool exists = true;
} drives_[4];
std::string drive_name(int c) const {
return std::string("Drive ") + std::to_string(c + 1);
}
Activity::Observer *observer_ = nullptr;
};
class KeyboardController {
@ -713,21 +735,8 @@ struct Memory {
}
// Accesses an address based on physical location.
// int mda_delay = -1; // HACK.
template <typename IntT, AccessType type>
typename InstructionSet::x86::Accessor<IntT, type>::type access(uint32_t address) {
// TEMPORARY HACK.
// if(mda_delay > 0) {
// --mda_delay;
// if(!mda_delay) {
// print_mda();
// }
// }
// if(address >= 0xb'0000 && is_writeable(type)) {
// mda_delay = 100;
// }
// Dispense with the single-byte case trivially.
if constexpr (std::is_same_v<IntT, uint8_t>) {
return memory[address];
@ -803,18 +812,6 @@ struct Memory {
return &memory[address];
}
// TEMPORARY HACK.
// void print_mda() {
// uint32_t pointer = 0xb'0000;
// for(int y = 0; y < 25; y++) {
// for(int x = 0; x < 80; x++) {
// printf("%c", memory[pointer]);
// pointer += 2; // MDA goes [character, attributes]...; skip the attributes.
// }
// printf("\n");
// }
// }
private:
std::array<uint8_t, 1024*1024> memory{0xff};
Registers &registers_;
@ -1019,15 +1016,6 @@ class IO {
case 0x03f4: return fdc_.status();
case 0x03f5: return fdc_.read();
// 3F0-3F7 Floppy disk controller (except PCjr)
// 3F0 Diskette controller status A
// 3F1 Diskette controller status B
// 3F2 controller control port
// 3F4 controller status register
// 3F5 data register (write 1-9 byte command, see INT 13)
// 3F6 Diskette controller data
// 3F7 Diskette digital input
case 0x02e8: case 0x02e9: case 0x02ea: case 0x02eb:
case 0x02ec: case 0x02ed: case 0x02ee: case 0x02ef:
case 0x02f8: case 0x02f9: case 0x02fa: case 0x02fb:
@ -1093,7 +1081,8 @@ class ConcreteMachine:
public MachineTypes::TimedMachine,
public MachineTypes::AudioProducer,
public MachineTypes::ScanProducer,
public MachineTypes::MappedKeyboardMachine
public MachineTypes::MappedKeyboardMachine,
public Activity::Source
{
public:
ConcreteMachine(
@ -1250,6 +1239,11 @@ class ConcreteMachine:
keyboard_.post(uint8_t(key | (is_pressed ? 0x00 : 0x80)));
}
// MARK: - Activity::Source.
void set_activity_observer(Activity::Observer *observer) final {
fdc_.set_activity_observer(observer);
}
private:
PIC pic_;
DMA dma_;