33 lines
697 B
C++
33 lines
697 B
C++
#pragma once
|
|
|
|
#include <vector>
|
|
#include <cstdint>
|
|
|
|
class CassetteTape
|
|
{
|
|
public:
|
|
|
|
typedef int8_t tape_data_t;
|
|
|
|
void setData(const std::vector<tape_data_t> & data, const int frequency);
|
|
BYTE getValue(const ULONG nExecutedCycles);
|
|
|
|
void getTapeInfo(size_t & size, size_t & pos, int & frequency, uint8_t & bit) const ;
|
|
void eject();
|
|
void rewind();
|
|
|
|
static CassetteTape & instance();
|
|
|
|
private:
|
|
BYTE getBitValue(const tape_data_t val);
|
|
tape_data_t getCurrentWave(size_t & pos) const;
|
|
|
|
std::vector<tape_data_t> myData;
|
|
|
|
uint64_t myBaseCycles;
|
|
int myFrequency;
|
|
bool myIsPlaying = false;
|
|
BYTE myLastBit = 1; // negative wave
|
|
|
|
static constexpr tape_data_t myThreshold = 5;
|
|
};
|