rc2014: correct SIO probe

This gets us to the point of bootdev: but then life goes downhill.

diff --git a/Kernel/platform-rc2014/rc2014.s b/Kernel/platform-rc2014/rc2014.s
index 295e754..fdde31e 100644 (file)
--- a/Kernel/platform-rc2014/rc2014.s
+++ b/Kernel/platform-rc2014/rc2014.s
@@ -85,7 +85,7 @@ init_hardware:
        inc b
        out (c),b
        in a,(c)
-       sub e
+       sub d
        jr z, is_sio
        ; We have however pooped on the 68B50 setup so put it back into
        ; a sensible state.