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123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
// .D82 - This is a sector-for-sector copy of an 8250 floppy disk
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//
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// https://vice-emu.sourceforge.io/vice_17.html#SEC363
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// https://ist.uwaterloo.ca/~schepers/formats/D80-D82.TXT
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//
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#ifndef MEATLOAF_MEDIA_D82
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#define MEATLOAF_MEDIA_D82
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#include "meat_io.h"
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#include "d64.h"
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/********************************************************
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* Streams
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********************************************************/
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class D82IStream : public D64IStream {
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// override everything that requires overriding here
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public:
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D82IStream(std::shared_ptr<MStream> is) : D64IStream(is)
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{
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// D82 Partition Info
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std::vector<BlockAllocationMap> b = {
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{
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38, // track
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0, // sector
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0x06, // offset
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1, // start_track
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50, // end_track
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5 // byte_count
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},
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{
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38, // track
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3, // sector
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0x06, // offset
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51, // start_track
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100, // end_track
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5 // byte_count
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},
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{
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38, // track
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6, // sector
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0x06, // offset
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101, // start_track
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150, // end_track
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5 // byte_count
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},
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{
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38, // track
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9, // sector
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0x06, // offset
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151, // start_track
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154, // end_track
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5 // byte_count
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}
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};
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Partition p = {
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39, // track
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0, // sector
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0x06, // header_offset
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39, // directory_track
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1, // directory_sector
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0x00, // directory_offset
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b // block_allocation_map
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};
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partitions.clear();
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partitions.push_back(p);
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sectorsPerTrack = { 23, 25, 27, 29 };
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};
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virtual uint8_t speedZone( uint8_t track) override
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{
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if (track < 78)
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return (track < 40) + (track < 54) + (track < 65);
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else
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return (track < 117) + (track < 131) + (track < 142);
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};
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protected:
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private:
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friend class D82File;
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};
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/********************************************************
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* File implementations
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********************************************************/
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class D82File: public D64File {
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public:
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D82File(std::string path, bool is_dir = true) : D64File(path, is_dir) {};
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MStream* getDecodedStream(std::shared_ptr<MStream> containerIstream) override;
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};
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/********************************************************
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* FS
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********************************************************/
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class D82FileSystem: public MFileSystem
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{
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public:
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MFile* getFile(std::string path) override {
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return new D82File(path);
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}
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bool handles(std::string fileName) override {
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return byExtension(".d82", fileName);
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}
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D82FileSystem(): MFileSystem("d82") {};
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};
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#endif /* MEATLOAF_MEDIA_D82 */
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