[ppc] Fix build breakage for all non-4xx PowerPC variants.
- adapt to the more generic EXCEPTION_PROLOG and CRIT_EXCEPTION macros
- minor 4xx cleanup
diff --git a/include/mpc8xx.h b/include/mpc8xx.h
index 2911758..1130598 100644
--- a/include/mpc8xx.h
+++ b/include/mpc8xx.h
@@ -35,7 +35,7 @@
* Exception offsets (PowerPC standard)
*/
#define EXC_OFF_SYS_RESET 0x0100 /* System reset */
-
+#define _START_OFFSET EXC_OFF_SYS_RESET
/*-----------------------------------------------------------------------
* SYPCR - System Protection Control Register 11-9