Add support for the Sharp X1's 2D format.

Almost the same as PC88/98 2D, but 256 byte sectors.

Author: tdaede

src/greaseweazle/data/diskdefs.cfg

@@ -72,6 +72,7 @@ import pc98. "diskdefs_pc98.cfg"
 import raw. "diskdefs_raw.cfg"
 import sci. "diskdefs_sci.cfg"
 import sega. "diskdefs_sega.cfg"
+import sharp. "diskdefs_sharp.cfg"
 import thomson. "diskdefs_thomson.cfg"
 import tsc. "diskdefs_tsc.cfg"
 import xerox. "diskdefs_xerox.cfg"

src/greaseweazle/data/diskdefs_sharp.cfg

@@ -0,0 +1,13 @@
+# prefix: sharp.
+
+disk 2d
+    cyls = 40
+    heads = 2
+    tracks * ibm.mfm
+        secs = 16
+        bps = 256
+        gap3 = 57
+        rate = 250
+        rpm = 300
+    end
+end

src/greaseweazle/image/sharp2d.py

@@ -0,0 +1,15 @@
+# greaseweazle/image/sharp2d.py
+#
+# Written & released by Keir Fraser <keir.xen@gmail.com>
+#
+# This is free and unencumbered software released into the public domain.
+# See the file COPYING for more details, or visit <http://unlicense.org>.
+
+from greaseweazle.image.img import IMG
+
+class SHARP2D(IMG):
+    default_format = 'sharp.2d'
+
+# Local variables:
+# python-indent: 4
+# End:

src/greaseweazle/tools/util.py

@@ -270,7 +270,8 @@ def split_opts(seq):
 
 
 image_types = OrderedDict(
-    { '.a2r': 'A2R',
+    { '.2d':  'SHARP2D',
+      '.a2r': 'A2R',
       '.adf': 'ADF',
       '.ads': ('ADS','acorn'),
       '.adm': ('ADM','acorn'),