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authorMichal Simek <monstr@monstr.eu>2007-05-08 14:52:52 +0200
committerMichal Simek <monstr@monstr.eu>2007-05-08 14:52:52 +0200
commit1a50f164beb065f360fbddb76029607d6b099698 (patch)
treea56a4027d0c68c5a5d9fdc15f0974650dd4fcb42 /cpu
parentab874d5047e5d30dbc1e517ff26083efffa98ecb (diff)
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add: Microblaze V5 exception handling
Diffstat (limited to 'cpu')
-rw-r--r--cpu/microblaze/exception.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/cpu/microblaze/exception.c b/cpu/microblaze/exception.c
index b135acb..87ecbea 100644
--- a/cpu/microblaze/exception.c
+++ b/cpu/microblaze/exception.c
@@ -23,15 +23,16 @@
*/
#include <common.h>
+#include <asm/asm.h>
void _hw_exception_handler (void)
{
int address = 0;
int state = 0;
/* loading address of exception EAR */
- __asm__ __volatile ("mfs %0,rear"::"r" (address):"memory");
+ MFSEAR(address);
/* loading excetpion state register ESR */
- __asm__ __volatile ("mfs %0,resr"::"r" (state):"memory");
+ MFSESR(state);
printf ("Hardware exception at 0x%x address\n", address);
switch (state & 0x1f) { /* mask on exception cause */
case 0x1:
@@ -49,6 +50,11 @@ void _hw_exception_handler (void)
case 0x5:
puts ("Divide by zero exception\n");
break;
+#ifdef MICROBLAZE_V5
+ case 0x1000:
+ puts ("Exception in delay slot\n");
+ break;
+#endif
default:
puts ("Undefined cause\n");
break;