imd: Fix import of 360rpm image with 26-sector MFM track 0.

This is the case for IBM System/36. Fixes #428
keirf · Apr 28, 2024 · bc66570 · bc66570
1 parent 154cb9d
commit bc66570
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/greaseweazle/image/imd.py b/src/greaseweazle/image/imd.py
@@ -66,6 +66,7 @@ def from_bytes(self, dat: bytes) -> None:
                 fmt.rate = 250
             elif mode == IMDMode.MFM_500kbps:
                 fmt = ibm.IBMTrack_FixedDef('ibm.mfm')
+                if nsec == 26: rpm = 360 # 8-inch disk
                 fmt.rate = 500
             else:
                 raise error.Fatal('IMD: Unrecognised track mode %x' % mode)