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-rw-r--r--src/lib/formats/swd_dsk.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/lib/formats/swd_dsk.cpp b/src/lib/formats/swd_dsk.cpp
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index 00000000000..637c2bf816d
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+++ b/src/lib/formats/swd_dsk.cpp
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+// license:BSD-3-Clause
+// copyright-holders:MetalliC
+/*********************************************************************
+
+ formats/swd_dsk.c
+
+ Swift Disc disk images
+
+*********************************************************************/
+
+#include <cassert>
+
+#include "formats/swd_dsk.h"
+
+swd_format::swd_format() : wd177x_format(formats)
+{
+}
+
+const char *swd_format::name() const
+{
+ return "swd";
+}
+
+const char *swd_format::description() const
+{
+ return "SWD floppy disk image";
+}
+
+const char *swd_format::extensions() const
+{
+ return "swd";
+}
+
+int swd_format::get_image_offset(const format &f, int head, int track)
+{
+ return (f.track_count * head + track) * compute_track_size(f);
+}
+
+const swd_format::format swd_format::formats[] = {
+ // note: original formatted disks use side# 1/2 instead of usual 0/1
+ { // 3'5 640K 80 track double sided double density
+ floppy_image::FF_35, floppy_image::DSDD, floppy_image::MFM,
+ 2000, 16, 80, 2, 256, {}, 1, {}, 60, 22, 56
+ },
+ { // 5"25 640K 80 track double sided double density
+ floppy_image::FF_525, floppy_image::DSQD, floppy_image::MFM,
+ 2000, 16, 80, 2, 256, {}, 1, {}, 60, 22, 56
+ },
+ {}
+};
+
+const floppy_format_type FLOPPY_SWD_FORMAT = &floppy_image_format_creator<swd_format>;