Reformat insns.dat to uniform column width

Add a script to reformat insns.dat to uniform width, and use it.

misc/fmtinsns.pl

@@ -0,0 +1,33 @@
+#!/usr/bin/perl
+#
+# Re-align the columns in insns.dat
+#
+
+@cols = (0, 16, 40, 72);
+
+while ($line = <STDIN>) {
+    chomp $line;
+    if ($line !~ /^\s*(\;.*|)$/) {
+	($ln = $line) =~ s/\s+$//;
+	@fields = split(/\s+/, $line);
+	if (scalar(@fields) == 4) {
+	    $c = 0;
+	    $line = '';
+	    for ($i = 0; $i < scalar(@fields); $i++) {
+		if ($i > 0 && $c >= $cols[$i]) {
+		    $line .= ' ';
+		    $c++;
+		}
+		while ($c < $cols[$i]) {
+		    $line .= "\t";
+		    $c = ($c+8) & ~7;
+		}
+		$line .= $fields[$i];
+		$c += length($fields[$i]);
+	    }
+	}
+    }
+    print $line, "\n";
+}
+
+