vt: avoid pointless signed maths

diff --git a/Kernel/vt.c b/Kernel/vt.c
index 36a0b42..68d7628 100644 (file)
--- a/Kernel/vt.c
+++ b/Kernel/vt.c
@@ -6,7 +6,6 @@
 
 
 #include <devtty.h>
-
 /*
  *     Mini vt52 terminal emulation
  *
@@ -116,7 +115,7 @@ static void charout(unsigned char c)
        if (c == 9) {
                do {
                        charout(' ');
-               } while (cursorx%8);
+               } while (cursorx&7);
                goto fix;
        }
        if (c == 10) {