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author | 2019-03-22 19:24:13 +0000 | |
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committer | 2019-03-22 19:24:13 +0000 | |
commit | 60e30e44b3916015997e332ce5bfdfc9f47440bd (patch) | |
tree | dd81b79da349653d610e22457d2ff360ddd67ef9 /src/lib/formats/opd_dsk.cpp | |
parent | 374d6d674f23ae770c267d1bbdf1278bd10cf202 (diff) |
spectrum: Added the Opus Discovery disc system, and OPD floppy format.
Diffstat (limited to 'src/lib/formats/opd_dsk.cpp')
-rw-r--r-- | src/lib/formats/opd_dsk.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/lib/formats/opd_dsk.cpp b/src/lib/formats/opd_dsk.cpp new file mode 100644 index 00000000000..b45b58762ed --- /dev/null +++ b/src/lib/formats/opd_dsk.cpp @@ -0,0 +1,61 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/*************************************************************************** + + Sinclair ZX Spectrum + + Opus Discovery disk image formats + +***************************************************************************/ + +#include "opd_dsk.h" + + +opd_format::opd_format() : wd177x_format(formats) +{ +} + +const char *opd_format::name() const +{ + return "opd"; +} + +const char *opd_format::description() const +{ + return "Opus Discovery disk image"; +} + +const char *opd_format::extensions() const +{ + return "opd,opu"; +} + +int opd_format::identify(io_generic *io, uint32_t form_factor) +{ + int type = find_size(io, form_factor); + + if (type != -1) + return 90; + return 0; +} + +int opd_format::get_image_offset(const format &f, int head, int track) +{ + return (f.track_count * head + track) * compute_track_size(f); +} + +const opd_format::format opd_format::formats[] = +{ + { // 180k 40 track single sided double density - gaps unverified + floppy_image::FF_35, floppy_image::SSSD, floppy_image::MFM, + 2000, 18, 40, 1, 256, {}, 0, {}, 36, 22, 27 + }, + { // 360k 40 track double sided double density - gaps unverified + floppy_image::FF_35, floppy_image::DSSD, floppy_image::MFM, + 2000, 18, 40, 2, 256, {}, 0, {}, 36, 22, 27 + }, + {} +}; + + +const floppy_format_type FLOPPY_OPD_FORMAT = &floppy_image_format_creator<opd_format>; |