rt11dsk: autodetect offset 0/128/256 (2)

nzeemin · Nov 12, 2023 · ba70ca7 · ba70ca7
1 parent 7ae2b65
commit ba70ca7
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diff --git a/rt11dsk/README.md b/rt11dsk/README.md
@@ -25,7 +25,7 @@ Parameters:
  * `<FileName>` is a file name to read from or save to
 
 Options:
- * `-oXXXXX` — Set start offset to XXXXX; 0 by default
+ * `-oXXXXX` — Set start offset to XXXXX; 0 by default (offsets 128 and 256 are detected by word 000240)
  * `-ms0515` — Sector interleaving used for MS0515 disks
  * `-hd32` — Hard disk with 32 MB partitions
 

diff --git a/rt11dsk/rt11dsk.cpp b/rt11dsk/rt11dsk.cpp
@@ -128,7 +128,7 @@ void PrintUsage()
            "    <Partn>     is hard disk image partition number, 0..23\n"
            "    <FileName>  is a file name to read from or save to\n"
            "  Options:\n"
-           "    " OPTIONSTR "oXXXXX  Set start offset to XXXXX; 0 by default, 256 for .trd files\n"
+           "    " OPTIONSTR "oXXXXX  Set start offset to XXXXX; 0 by default (offsets 128 and 256 are detected by word 000240)\n"
            "    " OPTIONSTR "ms0515  Sector interleaving used for MS0515 disks\n"
            "    " OPTIONSTR "hd32    Hard disk with 32 MB partitions\n"
           );