hercdasd.diff (2,764 bytes)
diff --git a/magic/Magdir/images b/magic/Magdir/images
index 28e78952..f1fcd59e 100644
--- a/magic/Magdir/images
+++ b/magic/Magdir/images
@@ -2266,43 +2266,41 @@
# Hercules DASD image files
# From Jan Jaeger <jj@septa.nl> and Jay Maynard <jaymaynard@gmail.com>
+
+# Common Hercules CKD image files
+0 name HercCKD
+>0 lelong x \b, %d heads per cylinder
+>4 lelong x \b, track size %d bytes
+>8 ubyte >0x2F
+>>8 ubyte 0x45 \b, device type 9345
+>>8 ubyte !0x45 \b, device type 33%2.2X
+>8 ubyte <0x30 \b, device type 23%2.2X
+
0 string CKD_P370 Hercules CKD DASD image file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
0 string CKD_C370 Hercules compressed CKD DASD image file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
>552 lelong x \b, %d total cylinders
>>557 byte 0 \b, no compression
>>557 byte 1 \b, ZLIB compression
>>557 byte 2 \b, BZ2 compression
0 string CKD_S370 Hercules CKD DASD shadow file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
0 string CKD_P064 Hercules CKD64 DASD image file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
0 string CKD_C064 Hercules compressed CKD64 DASD image file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
>524 lelong x \b, %d total cylinders
>>585 byte 0 \b, no compression
>>585 byte 1 \b, ZLIB compression
>>585 byte 2 \b, BZ2 compression
0 string CKD_S064 Hercules CKD64 DASD shadow file
->8 lelong x \b, %d heads per cylinder
->12 lelong x \b, track size %d bytes
->16 byte x \b, device type 33%2.2X
+>8 use HercCKD
# Squeak images and programs - etoffi@softhome.net
0 string \146\031\0\0 Squeak image data
