6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-26 08:49:37 +00:00
Code Issues Projects Releases Wiki Activity

Yet more .hpp clean(s)ing.

Browse Source
This commit is contained in:
Thomas Harte 2016-10-20 21:15:21 -04:00
parent c5948ef177
commit 6292ac5b26
2 changed files with 151 additions and 110 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

134
Machines/Commodore/1540/C1540.cpp
View File

@ -167,3 +167,137 @@ void Machine::drive_via_did_set_data_density(void *driveVIA, int density)
{
set_expected_bit_length(Storage::Encodings::CommodoreGCR::length_of_a_bit_in_time_zone((unsigned int)density));
}
#pragma mark - SerialPortVIA
SerialPortVIA::SerialPortVIA() :
_portB(0x00), _attention_acknowledge_level(false), _attention_level_input(true), _data_level_output(false)
{}
uint8_t SerialPortVIA::get_port_input(Port port)
{
if(port) return _portB;
return 0xff;
}
void SerialPortVIA::set_port_output(Port port, uint8_t value, uint8_t mask)
{
if(port)
{
std::shared_ptr<::Commodore::Serial::Port> serialPort = _serialPort.lock();
if(serialPort) {
_attention_acknowledge_level = !(value&0x10);
_data_level_output = (value&0x02);
serialPort->set_output(::Commodore::Serial::Line::Clock, (::Commodore::Serial::LineLevel)!(value&0x08));
update_data_line();
}
}
}
void SerialPortVIA::set_serial_line_state(::Commodore::Serial::Line line, bool value)
{
switch(line)
{
default: break;
case ::Commodore::Serial::Line::Data: _portB = (_portB & ~0x01) | (value ? 0x00 : 0x01); break;
case ::Commodore::Serial::Line::Clock: _portB = (_portB & ~0x04) | (value ? 0x00 : 0x04); break;
case ::Commodore::Serial::Line::Attention:
_attention_level_input = !value;
_portB = (_portB & ~0x80) | (value ? 0x00 : 0x80);
set_control_line_input(Port::A, Line::One, !value);
update_data_line();
break;
}
}
void SerialPortVIA::set_serial_port(std::shared_ptr<::Commodore::Serial::Port> serialPort)
{
_serialPort = serialPort;
}
void SerialPortVIA::update_data_line()
{
std::shared_ptr<::Commodore::Serial::Port> serialPort = _serialPort.lock();
if(serialPort)
{
// "ATN (Attention) is an input on pin 3 of P2 and P3 that is sensed at PB7 and CA1 of UC3 after being inverted by UA1"
serialPort->set_output(::Commodore::Serial::Line::Data,
(::Commodore::Serial::LineLevel)(!_data_level_output
&& (_attention_level_input != _attention_acknowledge_level)));
}
}
#pragma mark - DriveVIA
void DriveVIA::set_delegate(Delegate *delegate)
{
_delegate = delegate;
}
// write protect tab uncovered
DriveVIA::DriveVIA() : _port_b(0xff), _port_a(0xff), _delegate(nullptr) {}
uint8_t DriveVIA::get_port_input(Port port) {
return port ? _port_b : _port_a;
}
void DriveVIA::set_sync_detected(bool sync_detected) {
_port_b = (_port_b & 0x7f) | (sync_detected ? 0x00 : 0x80);
}
void DriveVIA::set_data_input(uint8_t value) {
_port_a = value;
}
bool DriveVIA::get_should_set_overflow() {
return _should_set_overflow;
}
bool DriveVIA::get_motor_enabled() {
return _drive_motor;
}
void DriveVIA::set_control_line_output(Port port, Line line, bool value) {
if(port == Port::A && line == Line::Two) {
_should_set_overflow = value;
}
}
void DriveVIA::set_port_output(Port port, uint8_t value, uint8_t direction_mask) {
if(port)
{
// record drive motor state
_drive_motor = !!(value&4);
// check for a head step
int step_difference = ((value&3) - (_previous_port_b_output&3))&3;
if(step_difference)
{
if(_delegate) _delegate->drive_via_did_step_head(this, (step_difference == 1) ? 1 : -1);
}
// check for a change in density
int density_difference = (_previous_port_b_output^value) & (3 << 5);
if(density_difference && _delegate)
{
_delegate->drive_via_did_set_data_density(this, (value >> 5)&3);
}
// TODO: something with the drive LED
// printf("LED: %s\n", value&8 ? "On" : "Off");
_previous_port_b_output = value;
}
}
#pragma mark - SerialPort
void SerialPort::set_input(::Commodore::Serial::Line line, ::Commodore::Serial::LineLevel level) {
std::shared_ptr<SerialPortVIA> serialPortVIA = _serialPortVIA.lock();
if(serialPortVIA) serialPortVIA->set_serial_line_state(line, (bool)level);
}
void SerialPort::set_serial_port_via(std::shared_ptr<SerialPortVIA> serialPortVIA) {
_serialPortVIA = serialPortVIA;
}

127
Machines/Commodore/1540/C1540.hpp
View File

@ -39,62 +39,21 @@ class SerialPortVIA: public MOS::MOS6522<SerialPortVIA>, public MOS::MOS6522IRQD
public:
using MOS6522IRQDelegate::set_interrupt_status;
SerialPortVIA() : _portB(0x00), _attention_acknowledge_level(false), _attention_level_input(true), _data_level_output(false) {}
SerialPortVIA();
uint8_t get_port_input(Port port) {
if(port) {
return _portB;
}
uint8_t get_port_input(Port port);
return 0xff;
}
void set_port_output(Port port, uint8_t value, uint8_t mask);
void set_serial_line_state(::Commodore::Serial::Line line, bool value);
void set_port_output(Port port, uint8_t value, uint8_t mask) {
if(port) {
std::shared_ptr<::Commodore::Serial::Port> serialPort = _serialPort.lock();
if(serialPort) {
_attention_acknowledge_level = !(value&0x10);
_data_level_output = (value&0x02);
serialPort->set_output(::Commodore::Serial::Line::Clock, (::Commodore::Serial::LineLevel)!(value&0x08));
update_data_line();
}
}
}
void set_serial_line_state(::Commodore::Serial::Line line, bool value) {
switch(line) {
default: break;
case ::Commodore::Serial::Line::Data: _portB = (_portB & ~0x01) | (value ? 0x00 : 0x01); break;
case ::Commodore::Serial::Line::Clock: _portB = (_portB & ~0x04) | (value ? 0x00 : 0x04); break;
case ::Commodore::Serial::Line::Attention:
_attention_level_input = !value;
_portB = (_portB & ~0x80) | (value ? 0x00 : 0x80);
set_control_line_input(Port::A, Line::One, !value);
update_data_line();
break;
}
}
void set_serial_port(std::shared_ptr<::Commodore::Serial::Port> serialPort) {
_serialPort = serialPort;
}
void set_serial_port(std::shared_ptr<::Commodore::Serial::Port> serialPort);
private:
uint8_t _portB;
std::weak_ptr<::Commodore::Serial::Port> _serialPort;
bool _attention_acknowledge_level, _attention_level_input, _data_level_output;
void update_data_line()
{
std::shared_ptr<::Commodore::Serial::Port> serialPort = _serialPort.lock();
if(serialPort) {
// "ATN (Attention) is an input on pin 3 of P2 and P3 that is sensed at PB7 and CA1 of UC3 after being inverted by UA1"
serialPort->set_output(::Commodore::Serial::Line::Data,
(::Commodore::Serial::LineLevel)(!_data_level_output
&& (_attention_level_input != _attention_acknowledge_level)));
}
}
void update_data_line();
};
/*!
@ -120,68 +79,22 @@ class DriveVIA: public MOS::MOS6522<DriveVIA>, public MOS::MOS6522IRQDelegate {
virtual void drive_via_did_step_head(void *driveVIA, int direction) = 0;
virtual void drive_via_did_set_data_density(void *driveVIA, int density) = 0;
};
void set_delegate(Delegate *delegate)
{
_delegate = delegate;
}
void set_delegate(Delegate *delegate);
using MOS6522IRQDelegate::set_interrupt_status;
// write protect tab uncovered
DriveVIA() : _port_b(0xff), _port_a(0xff), _delegate(nullptr) {}
DriveVIA();
uint8_t get_port_input(Port port) {
return port ? _port_b : _port_a;
}
uint8_t get_port_input(Port port);
void set_sync_detected(bool sync_detected) {
_port_b = (_port_b & 0x7f) | (sync_detected ? 0x00 : 0x80);
}
void set_sync_detected(bool sync_detected);
void set_data_input(uint8_t value);
bool get_should_set_overflow();
bool get_motor_enabled();
void set_data_input(uint8_t value) {
_port_a = value;
}
void set_control_line_output(Port port, Line line, bool value);
bool get_should_set_overflow() {
return _should_set_overflow;
}
bool get_motor_enabled() {
return _drive_motor;
}
void set_control_line_output(Port port, Line line, bool value) {
if(port == Port::A && line == Line::Two) {
_should_set_overflow = value;
}
}
void set_port_output(Port port, uint8_t value, uint8_t direction_mask) {
if(port)
{
// record drive motor state
_drive_motor = !!(value&4);
// check for a head step
int step_difference = ((value&3) - (_previous_port_b_output&3))&3;
if(step_difference)
{
if(_delegate) _delegate->drive_via_did_step_head(this, (step_difference == 1) ? 1 : -1);
}
// check for a change in density
int density_difference = (_previous_port_b_output^value) & (3 << 5);
if(density_difference && _delegate)
{
_delegate->drive_via_did_set_data_density(this, (value >> 5)&3);
}
// TODO: something with the drive LED
// printf("LED: %s\n", value&8 ? "On" : "Off");
_previous_port_b_output = value;
}
}
void set_port_output(Port port, uint8_t value, uint8_t direction_mask);
private:
uint8_t _port_b, _port_a;
@ -196,14 +109,8 @@ class DriveVIA: public MOS::MOS6522<DriveVIA>, public MOS::MOS6522IRQDelegate {
*/
class SerialPort : public ::Commodore::Serial::Port {
public:
void set_input(::Commodore::Serial::Line line, ::Commodore::Serial::LineLevel level) {
std::shared_ptr<SerialPortVIA> serialPortVIA = _serialPortVIA.lock();
if(serialPortVIA) serialPortVIA->set_serial_line_state(line, (bool)level);
}
void set_serial_port_via(std::shared_ptr<SerialPortVIA> serialPortVIA) {
_serialPortVIA = serialPortVIA;
}
void set_input(::Commodore::Serial::Line line, ::Commodore::Serial::LineLevel level);
void set_serial_port_via(std::shared_ptr<SerialPortVIA> serialPortVIA);
private:
std::weak_ptr<SerialPortVIA> _serialPortVIA;