Preserve other Betza mode bits on setting default modality

diff --git a/moves.c b/moves.c
index d1b6508..647aa44 100644 (file)
--- a/moves.c
+++ b/moves.c
@@ -359,7 +359,7 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle
            mode |= 1024; dy = 1;
        }
         if(!cont) {
-           if(!(mode & 15)) mode = his + 4;          // no mode spec, use default = mc
+           if(!(mode & 15)) mode |= his + 4;         // no mode spec, use default = mc
        } else {
            strncpy(buf, cont, 80); cont = buf;       // copy next leg(s), so we can modify
            atom = buf; while(islower(*atom)) atom++; // skip to atom
@@ -371,7 +371,7 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle
                atom[1] = atom[2] = '\0';             // make sure any old range is stripped off
                if(expo == 1) atom[1] = '0';          // turn other leapers into riders 
            }
-           if(!(mode & 0x30F)) mode = 4;             // and default of this leg = m
+           if(!(mode & 0x30F)) mode |= 4;            // and default of this leg = m
        }
        if(dy == 1) skip = jump - 1, jump = 1;        // on W & F atoms 'j' = skip first square
         do {