diff --git a/src/lib/formats/flopimg.c b/src/lib/formats/flopimg.c index cc7e00d0ed4..4588d717c00 100644 --- a/src/lib/formats/flopimg.c +++ b/src/lib/formats/flopimg.c @@ -2890,3 +2890,68 @@ void floppy_image_format_t::extract_sectors_from_bitstream_gcr5(const UINT8 *bit } } } + +void floppy_image_format_t::extract_sectors_from_bitstream_victor_gcr5(const UINT8 *bitstream, int track_size, desc_xs *sectors, UINT8 *sectdata, int sectdata_size) +{ + memset(sectors, 0, 256*sizeof(desc_xs)); + + // Don't bother if it's just too small + if(track_size < 100) + return; + + // Start by detecting all id and data blocks + int hblk[100], dblk[100]; + int hblk_count = 0, dblk_count = 0; + + // Precharge the shift register to detect over-the-index stuff + UINT16 shift_reg = 0; + for(int i=0; i<16; i++) + if(sbit_r(bitstream, track_size-16+i)) + shift_reg |= 0x8000 >> i; + + // Scan the bitstream for sync marks and follow them to check for blocks + bool sync = false; + for(int i=0; i; diff --git a/src/lib/formats/victor9k_dsk.h b/src/lib/formats/victor9k_dsk.h index 22f43fa7e3b..1564f1474f7 100644 --- a/src/lib/formats/victor9k_dsk.h +++ b/src/lib/formats/victor9k_dsk.h @@ -31,13 +31,10 @@ public: virtual const char *description() const; virtual const char *extensions() const; - int find_size(io_generic *io, UINT32 form_factor); virtual int identify(io_generic *io, UINT32 form_factor); - void log_boot_sector(UINT8 *data); - floppy_image_format_t::desc_e* get_sector_desc(const format &f, int ¤t_size, int sector_count); - void build_sector_description(const format &f, UINT8 *sectdata, UINT32 sect_offs, desc_s *sectors, int sector_count) const; virtual bool load(io_generic *io, UINT32 form_factor, floppy_image *image); - virtual bool supports_save() const; + virtual bool save(io_generic *io, floppy_image *image); + virtual bool supports_save() const { return true; } static int get_rpm(int head, int track); @@ -48,6 +45,14 @@ protected: static const int sectors_per_track[2][80]; static const int speed_zone[2][80]; static const int rpm[9]; + + int find_size(io_generic *io, UINT32 form_factor); + void log_boot_sector(UINT8 *data); + floppy_image_format_t::desc_e* get_sector_desc(const format &f, int ¤t_size, int sector_count); + void build_sector_description(const format &f, UINT8 *sectdata, UINT32 sect_offs, desc_s *sectors, int sector_count) const; + int get_image_offset(const format &f, int head, int track); + int compute_track_size(const format &f, int head, int track); + void extract_sectors(floppy_image *image, const format &f, desc_s *sdesc, int track, int head, int sector_count); }; extern const floppy_format_type FLOPPY_VICTOR_9000_FORMAT;