diff options
| author | 2011-11-01 11:36:43 +0000 | |
|---|---|---|
| committer | 2011-11-01 11:36:43 +0000 | |
| commit | 55e17a2bb907cbf19218eda40d0239633f99f7b9 (patch) | |
| tree | 107eccd9ac5e989742a8a67a67325fcd8f3c22f7 /src/lib | |
| parent | c965e4ad2794d433f709e90346c81904d3106b29 (diff) | |
ipf: Describe the remaining fields [O. Galibert, SPS]
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/formats/ipf_dsk.c | 18 | ||||
| -rw-r--r-- | src/lib/formats/ipf_dsk.h | 174 |
2 files changed, 96 insertions, 96 deletions
diff --git a/src/lib/formats/ipf_dsk.c b/src/lib/formats/ipf_dsk.c index 150c34f205d..db17bcc550e 100644 --- a/src/lib/formats/ipf_dsk.c +++ b/src/lib/formats/ipf_dsk.c @@ -94,11 +94,11 @@ bool ipf_format::parse_info(const UINT8 *info) type = r32(info+12); if(type != 1) return false; - f4 = r32(info+16); // Usually 2 - f8 = r32(info+20); // Usually 1 + encoder_type = r32(info+16); // 1 for CAPS, 2 for SPS + encoder_revision = r32(info+20); // 1 always release = r32(info+24); revision = r32(info+28); - f14 = r32(info+32); // Perhaps some kind of (unchecked) checksum + origin = r32(info+32); // Original source reference min_cylinder = r32(info+36); max_cylinder = r32(info+40); min_head = r32(info+44); @@ -144,7 +144,7 @@ bool ipf_format::parse_imge(const UINT8 *imge) return false; t->type = r32(imge+20); - t->t12 = r32(imge+24); // Usually 1 + t->sigtype = r32(imge+24); // 1 for 2us cells, no other value valid t->size_bytes = r32(imge+28); t->index_bytes = r32(imge+32); t->index_cells = r32(imge+36); @@ -152,11 +152,11 @@ bool ipf_format::parse_imge(const UINT8 *imge) t->gapsize_cells = r32(imge+44); t->size_cells = r32(imge+48); t->block_count = r32(imge+52); - t->t44 = r32(imge+56); // Usually 0 + t->process = r32(imge+56); // encoder process, always 0 t->weak_bits = r32(imge+60); - t->t56 = r32(imge+68); - t->t60 = r32(imge+72); - t->t64 = r32(imge+76); + t->reserved[0] = r32(imge+68); + t->reserved[1] = r32(imge+72); + t->reserved[2] = r32(imge+76); return true; } @@ -167,7 +167,7 @@ bool ipf_format::parse_data(const UINT8 *data, UINT32 &pos, UINT32 max_extra_siz if(!t) return false; - t->d4 = r32(data+16); // Somehow related to the number of data cells + t->data_size_bits = r32(data+16); t->data = data+28; t->data_size = r32(data+12); if(t->data_size > max_extra_size) diff --git a/src/lib/formats/ipf_dsk.h b/src/lib/formats/ipf_dsk.h index b453c7c3115..83159bbf2f3 100644 --- a/src/lib/formats/ipf_dsk.h +++ b/src/lib/formats/ipf_dsk.h @@ -1,87 +1,87 @@ -#ifndef IPF_DSK_H_ -#define IPF_DSK_H_ - -#include "flopimg.h" - -class ipf_format : public floppy_image_format_t -{ -public: - ipf_format(); - - virtual int identify(io_generic *io); - virtual bool load(io_generic *io, floppy_image *image); - - virtual const char *name() const; - virtual const char *description() const; - virtual const char *extensions() const; - virtual bool supports_save() const; - -private: - struct track_info { - UINT32 cylinder, head, type; - UINT32 t12, t44, t56, t60, t64; - UINT32 size_bytes, size_cells; - UINT32 index_bytes, index_cells; - UINT32 datasize_cells, gapsize_cells; - UINT32 block_count, weak_bits; - - UINT32 d4; - - bool info_set; - - const UINT8 *data; - UINT32 data_size; - }; - - track_info *tinfos; - UINT32 tcount; - - UINT32 type, release, revision; - UINT32 f4, f8, f14; - UINT32 min_cylinder, max_cylinder, min_head, max_head; - UINT32 credit_day, credit_time; - UINT32 platform[4], extra[5]; - - UINT32 crc32r(const UINT8 *data, UINT32 size); - - bool parse_info(const UINT8 *info); - bool parse_imge(const UINT8 *imge); - bool parse_data(const UINT8 *data, UINT32 &pos, UINT32 max_extra_size); - - bool scan_one_tag(UINT8 *data, UINT32 size, UINT32 &pos, UINT8 *&tag, UINT32 &tsize); - bool scan_all_tags(UINT8 *data, UINT32 size); - static UINT32 r32(const UINT8 *p); - static UINT32 rb(const UINT8 *&p, int count); - - track_info *get_index(UINT32 idx); - - void track_write_raw(UINT32 *&track, const UINT8 *data, UINT32 cells, bool &context); - void track_write_mfm(UINT32 *&track, const UINT8 *data, UINT32 start_offset, UINT32 patlen, UINT32 cells, bool &context); - void track_write_weak(UINT32 *&track, UINT32 cells); - bool generate_block_data(const UINT8 *data, const UINT8 *dlimit, UINT32 *track, UINT32 *tlimit, bool &context); - - bool gap_description_to_reserved_size(const UINT8 *&data, const UINT8 *dlimit, UINT32 &res_size); - bool generate_gap_from_description(const UINT8 *&data, const UINT8 *dlimit, UINT32 *track, UINT32 size, bool pre, bool &context); - bool generate_block_gap_0(UINT32 gap_cells, UINT8 pattern, UINT32 &spos, UINT32 ipos, UINT32 *track, bool &context); - bool generate_block_gap_1(UINT32 gap_cells, UINT32 &spos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context); - bool generate_block_gap_2(UINT32 gap_cells, UINT32 &spos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context); - bool generate_block_gap_3(UINT32 gap_cells, UINT32 &spos, UINT32 ipos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context); - bool generate_block_gap(UINT32 gap_type, UINT32 gap_cells, UINT8 pattern, UINT32 &spos, UINT32 ipos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context); - - bool generate_block(track_info *t, UINT32 idx, UINT32 ipos, UINT32 *track, UINT32 &pos, UINT32 &dpos, UINT32 &gpos, UINT32 &spos, bool &context); - UINT32 block_compute_real_size(track_info *t); - - void timing_set(UINT32 *track, UINT32 start, UINT32 end, UINT32 time); - bool generate_timings(track_info *t, UINT32 *track, const UINT32 *data_pos, const UINT32 *gap_pos); - - void rotate(UINT32 *track, UINT32 offset, UINT32 size); - void mark_track_splice(UINT32 *t); - bool generate_track(track_info *t, floppy_image *image); - bool generate_tracks(floppy_image *image); - - bool parse(UINT8 *data, UINT32 size, floppy_image *image); -}; - -extern const floppy_format_type FLOPPY_IPF_FORMAT; - -#endif /*IPF_DSK_H_*/ +#ifndef IPF_DSK_H_
+#define IPF_DSK_H_
+
+#include "flopimg.h"
+
+class ipf_format : public floppy_image_format_t
+{
+public:
+ ipf_format();
+
+ virtual int identify(io_generic *io);
+ virtual bool load(io_generic *io, floppy_image *image);
+
+ virtual const char *name() const;
+ virtual const char *description() const;
+ virtual const char *extensions() const;
+ virtual bool supports_save() const;
+
+private:
+ struct track_info {
+ UINT32 cylinder, head, type;
+ UINT32 sigtype, process, reserved[3];
+ UINT32 size_bytes, size_cells;
+ UINT32 index_bytes, index_cells;
+ UINT32 datasize_cells, gapsize_cells;
+ UINT32 block_count, weak_bits;
+
+ UINT32 data_size_bits;
+
+ bool info_set;
+
+ const UINT8 *data;
+ UINT32 data_size;
+ };
+
+ track_info *tinfos;
+ UINT32 tcount;
+
+ UINT32 type, release, revision;
+ UINT32 encoder_type, encoder_revision, origin;
+ UINT32 min_cylinder, max_cylinder, min_head, max_head;
+ UINT32 credit_day, credit_time;
+ UINT32 platform[4], extra[5];
+
+ UINT32 crc32r(const UINT8 *data, UINT32 size);
+
+ bool parse_info(const UINT8 *info);
+ bool parse_imge(const UINT8 *imge);
+ bool parse_data(const UINT8 *data, UINT32 &pos, UINT32 max_extra_size);
+
+ bool scan_one_tag(UINT8 *data, UINT32 size, UINT32 &pos, UINT8 *&tag, UINT32 &tsize);
+ bool scan_all_tags(UINT8 *data, UINT32 size);
+ static UINT32 r32(const UINT8 *p);
+ static UINT32 rb(const UINT8 *&p, int count);
+
+ track_info *get_index(UINT32 idx);
+
+ void track_write_raw(UINT32 *&track, const UINT8 *data, UINT32 cells, bool &context);
+ void track_write_mfm(UINT32 *&track, const UINT8 *data, UINT32 start_offset, UINT32 patlen, UINT32 cells, bool &context);
+ void track_write_weak(UINT32 *&track, UINT32 cells);
+ bool generate_block_data(const UINT8 *data, const UINT8 *dlimit, UINT32 *track, UINT32 *tlimit, bool &context);
+
+ bool gap_description_to_reserved_size(const UINT8 *&data, const UINT8 *dlimit, UINT32 &res_size);
+ bool generate_gap_from_description(const UINT8 *&data, const UINT8 *dlimit, UINT32 *track, UINT32 size, bool pre, bool &context);
+ bool generate_block_gap_0(UINT32 gap_cells, UINT8 pattern, UINT32 &spos, UINT32 ipos, UINT32 *track, bool &context);
+ bool generate_block_gap_1(UINT32 gap_cells, UINT32 &spos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context);
+ bool generate_block_gap_2(UINT32 gap_cells, UINT32 &spos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context);
+ bool generate_block_gap_3(UINT32 gap_cells, UINT32 &spos, UINT32 ipos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context);
+ bool generate_block_gap(UINT32 gap_type, UINT32 gap_cells, UINT8 pattern, UINT32 &spos, UINT32 ipos, const UINT8 *data, const UINT8 *dlimit, UINT32 *track, bool &context);
+
+ bool generate_block(track_info *t, UINT32 idx, UINT32 ipos, UINT32 *track, UINT32 &pos, UINT32 &dpos, UINT32 &gpos, UINT32 &spos, bool &context);
+ UINT32 block_compute_real_size(track_info *t);
+
+ void timing_set(UINT32 *track, UINT32 start, UINT32 end, UINT32 time);
+ bool generate_timings(track_info *t, UINT32 *track, const UINT32 *data_pos, const UINT32 *gap_pos);
+
+ void rotate(UINT32 *track, UINT32 offset, UINT32 size);
+ void mark_track_splice(UINT32 *t);
+ bool generate_track(track_info *t, floppy_image *image);
+ bool generate_tracks(floppy_image *image);
+
+ bool parse(UINT8 *data, UINT32 size, floppy_image *image);
+};
+
+extern const floppy_format_type FLOPPY_IPF_FORMAT;
+
+#endif /*IPF_DSK_H_*/
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