lowlevel-6809.s: u_callno is 8 bit

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>

diff --git a/Kernel/lowlevel-6809.s b/Kernel/lowlevel-6809.s
index 3b6ca0d..30e9c40 100644 (file)
--- a/Kernel/lowlevel-6809.s
+++ b/Kernel/lowlevel-6809.s
@@ -96,7 +96,7 @@ unix_syscall_entry:
        SAM_USER
        ldd 4,s         ; X register -> syscall number
        SAM_KERNEL
-       std U_DATA__U_CALLNO
+       stb U_DATA__U_CALLNO
         ; save process stack pointer (in user page)
         sts U_DATA__U_SYSCALL_SP
         ; switch to kernel stack (makes our stack valid again)