99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/*
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epple2
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Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY, without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "drive.h"
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Disk2Drive::Disk2Drive(double p_random_ones_rate):
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stepper(head),
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pulse(false),
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bitBufferRead(0),
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random_ones_rate(p_random_ones_rate),
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generator((unsigned int)std::chrono::system_clock::now().time_since_epoch().count()),
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distribution(0.0,1.0) {
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}
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bool Disk2Drive::loadDisk(const std::filesystem::path& fnib) {
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return this->disk.load(fnib);
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}
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void Disk2Drive::unloadDisk() {
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this->disk.unload();
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}
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bool Disk2Drive::isLoaded() const {
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return this->disk.isLoaded();
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}
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void Disk2Drive::saveDisk() {
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this->disk.save();
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}
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bool Disk2Drive::isWriteProtected() const {
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return this->disk.isWriteProtected();
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}
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bool Disk2Drive::isModified() const {
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return this->disk.isModified();
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}
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int Disk2Drive::optimal_timing() const {
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return this->disk.optimal_timing();
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}
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int Disk2Drive::position() const {
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return this->head.position();
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}
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void Disk2Drive::tick() {
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this->stepper.tick();
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}
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void Disk2Drive::set_phase(int i_phase_0_to_3, bool on) {
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this->stepper.set_phase(i_phase_0_to_3, on);
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}
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int Disk2Drive::getTrack() const {
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return this->head.position() >> 2;
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}
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void Disk2Drive::rotateDiskOneBit() {
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this->disk.rotateOneBit(this->head.position());
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bitBufferRead <<= 1;
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const bool exists(this->disk.exists(this->head.position()));
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if (exists) {
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bitBufferRead |= this->disk.getBit(this->head.position());
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}
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if ((bitBufferRead & 0x0Fu) && exists) {
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this->pulse = (bitBufferRead & 0x02u) >> 1;
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} else {
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this->pulse = randomBit();
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}
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}
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bool Disk2Drive::readPulse() const {
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return this->pulse;
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}
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void Disk2Drive::clearPulse() {
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this->pulse = false;
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}
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void Disk2Drive::writeBit(bool on) {
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this->disk.setBit(this->head.position(), on);
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}
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