Clean up panicf and introduce system_exception_wait to do further target tasks and wait for a button when an unrecoverable error has occurred (panic, UIE, etc.). Returning from that function should reboot or don't return from it. Move UIE and __div0 for ARM to its own file.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19716 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 11 insertions, 0 deletions

diff --git a/firmware/target/arm/system-pp502x.c b/firmware/target/arm/system-pp502x.c
index b1f178c8d5..277b1e9a0b 100644
--- a/firmware/target/arm/system-pp502x.c
+++ b/firmware/target/arm/system-pp502x.c
@@ -455,6 +455,17 @@ void system_reboot(void)
     while (1);
 }
 
+void system_exception_wait(void)
+{
+    /* FIXME: we just need the right buttons */
+    CPU_INT_DIS = -1;
+    COP_INT_DIS = -1;
+
+    /* Halt */
+    PROC_CTL(CURRENT_CORE) = 0x40000000;
+    while (1);
+}
+
 int system_memory_guard(int newmode)
 {
     (void)newmode;