Allow overriding number of tracks to capture

tools/README.md

@@ -11,7 +11,7 @@ Also output to **.dfi** (DiscFerret flux dump) is possible (not tested).
 
 ## Syntax :
 
-`[-i input_rfi_file] [[-c] | [-o output_file]] [-spidiv spi_divider] [[-ss]|[-ds]] [-r retries] [-sort] [-summary] [-v]`
+`[-i input_rfi_file] [[-c] | [-o output_file]] [-spidiv spi_divider] [[-ss]|[-ds]] [-r retries] [-sort] [-summary] [-tmax maxtracks] [-v]`
 
 ## Where :
 
@@ -24,6 +24,7 @@ Also output to **.dfi** (DiscFerret flux dump) is possible (not tested).
  * `-ds` Force double-sided capture (unless output is to .ssd)
  * `-sort` Sort sectors in diskstore prior to writing image
  * `-summary` Present a summary of operations once complete
+ * `-tmax` Specify the maximum track number you wish to try stepping to
  * `-v` Verbose
 
 ## Return codes :

tools/bbcfdc.c

@@ -121,7 +121,7 @@ void showargs(const char *exename)
 #ifdef NOPI
   fprintf(stderr, "[-i input_rfi_file] ");
 #endif
-  fprintf(stderr, "[[-c] | [-o output_file]] [-spidiv spi_divider] [[-ss]|[-ds]] [-r retries] [-sort] [-summary] [-v]\n");
+  fprintf(stderr, "[[-c] | [-o output_file]] [-spidiv spi_divider] [[-ss]|[-ds]] [-r retries] [-sort] [-summary] [-tmax maxtracks] [-v]\n");
 }
 
 int main(int argc,char **argv)
@@ -203,6 +203,17 @@ int main(int argc,char **argv)
         retries=retval;
     }
     else
+    if ((strcmp(argv[argn], "-tmax")==0) && ((argn+1)<argc))
+    {
+      int retval;
+
+      ++argn;
+
+      // Override the maximum number of drive tracks
+      if (sscanf(argv[argn], "%3d", &retval)==1)
+        hw_setmaxtracks(retval);
+    }
+    else
     if ((strcmp(argv[argn], "-spidiv")==0) && ((argn+1)<argc))
     {
       int retval;