// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************* formats/c4040_dsk.c Commodore 4040 sector disk image format *********************************************************************/ #include #include "formats/c4040_dsk.h" c4040_format::c4040_format() : d64_format(file_formats) { } const char *c4040_format::name() const { return "c4040"; } const char *c4040_format::description() const { return "Commodore 4040 disk image"; } const char *c4040_format::extensions() const { return "d64"; } const c4040_format::format c4040_format::file_formats[] = { { // c4040, dos 2, 35 tracks, head 48 tpi, stepper 96 tpi floppy_image::FF_525, floppy_image::SSSD, 683, 35, 1, 256, 9, 8 }, {} }; const int c4040_format::c4040_gap2[] = { 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, // 1-17 19, 19, 19, 19, 19, 19, 19, // 18-24 15, 15, 15, 15, 15, 15, // 25-30 12, 12, 12, 12, 12 // 31-35 }; floppy_image_format_t::desc_e* c4040_format::get_sector_desc(const format &f, int ¤t_size, int sector_count, UINT8 id1, UINT8 id2, int gap_2) { static floppy_image_format_t::desc_e desc[] = { /* 00 */ { SECTOR_LOOP_START, 0, -1 }, /* 01 */ { SYNC_GCR5, 4 }, /* 02 */ { GCR5, 0x08, 1 }, /* 03 */ { CRC, 1 }, /* 04 */ { CRC_CBM_START, 1 }, /* 05 */ { SECTOR_ID_GCR5 }, /* 06 */ { TRACK_ID_DOS2_GCR5 }, /* 07 */ { GCR5, id2, 1 }, /* 08 */ { GCR5, id1, 1 }, /* 09 */ { CRC_END, 1 }, /* 10 */ { GCR5, 0x00, f.gap_1 }, /* 11 */ { SYNC_GCR5, 4 }, /* 12 */ { GCR5, 0x07, 1 }, /* 13 */ { CRC_CBM_START, 2 }, /* 14 */ { SECTOR_DATA_GCR5, -1 }, /* 15 */ { CRC_END, 2 }, /* 16 */ { CRC, 2 }, /* 17 */ { GCR5, 0x00, gap_2 }, /* 18 */ { SECTOR_LOOP_END }, /* 19 */ { GCR5, 0x00, 0 }, /* 20 */ { RAWBITS, 0x14a, 0 }, /* 21 */ { END } }; desc[17].p2 = gap_2; // TODO why?!? current_size = 40 + (1+1+4)*10 + f.gap_1*10 + 40 + (1+f.sector_base_size+1)*10 + gap_2*10; current_size *= sector_count; return desc; } void c4040_format::fix_end_gap(floppy_image_format_t::desc_e* desc, int remaining_size) { desc[19].p2 = remaining_size / 10; desc[20].p2 = remaining_size % 10; desc[20].p1 >>= remaining_size & 0x01; } const floppy_format_type FLOPPY_C4040_FORMAT = &floppy_image_format_creator;