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-rw-r--r--src/lib/formats/mm_dsk.cpp89
1 files changed, 89 insertions, 0 deletions
diff --git a/src/lib/formats/mm_dsk.cpp b/src/lib/formats/mm_dsk.cpp
new file mode 100644
index 00000000000..0634c0e3ede
--- /dev/null
+++ b/src/lib/formats/mm_dsk.cpp
@@ -0,0 +1,89 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/*********************************************************************
+
+ formats/mm_dsk.c
+
+ mm format
+
+*********************************************************************/
+
+#include <assert.h>
+
+#include "formats/mm_dsk.h"
+
+mm1_format::mm1_format() : upd765_format(formats)
+{
+}
+
+const char *mm1_format::name() const
+{
+ return "mm1";
+}
+
+const char *mm1_format::description() const
+{
+ return "Nokia MikroMikko 1 disk image";
+}
+
+const char *mm1_format::extensions() const
+{
+ return "dsk";
+}
+
+mm2_format::mm2_format() : upd765_format(formats)
+{
+}
+
+const char *mm2_format::name() const
+{
+ return "mm2";
+}
+
+const char *mm2_format::description() const
+{
+ return "Nokia MikroMikko 2 disk image";
+}
+
+const char *mm2_format::extensions() const
+{
+ return "dsk";
+}
+
+// Unverified gap sizes
+const mm1_format::format mm1_format::formats[] = {
+ {
+ floppy_image::FF_525, floppy_image::DSQD, floppy_image::MFM,
+ 2000, // 2us, 300rpm
+ 8, 80, 2,
+ 512, {},
+ -1, { 1,4,7,2,5,8,3,6 },
+ 80, 50, 22, 80
+ },
+ {}
+};
+
+// Unverified gap sizes
+const mm2_format::format mm2_format::formats[] = {
+ {
+ floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
+ 2000, // 2us, 300rpm
+ 9, 40, 2,
+ 512, {},
+ 1, {},
+ 80, 50, 22, 80
+ },
+ // 40 tracks but 18 sectors implying HD density at 300rpm, i.e. on
+ // 3.5" media? That makes no sense
+ {
+ floppy_image::FF_525, floppy_image::DSHD, floppy_image::MFM,
+ 1000, // 1us, 300rpm, otherwise it just won't fit
+ 18, 40, 2, // That line is just nonsense
+ 512, {},
+ 1, {},
+ 80, 50, 22, 80
+ }
+};
+
+const floppy_format_type FLOPPY_MM1_FORMAT = &floppy_image_format_creator<mm1_format>;
+const floppy_format_type FLOPPY_MM2_FORMAT = &floppy_image_format_creator<mm2_format>;