summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2008-11-12 15:35:20 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-12 10:41:17 -0800
commitf911c685d65ea1855eb3f95b8eaf871e5d9342fa (patch)
tree26c2ac08ef38829006c5c8f99ac5ed5d8c660ba2 /arch
parentb308bf3be1f75207c307eea9ada90e0b76194911 (diff)
downloadlinux-f911c685d65ea1855eb3f95b8eaf871e5d9342fa.tar.gz
linux-f911c685d65ea1855eb3f95b8eaf871e5d9342fa.tar.bz2
linux-f911c685d65ea1855eb3f95b8eaf871e5d9342fa.zip
MN10300: Fix register-postinc addressing misalignment handling
Fix misalignment handling of operands with register postincrement addressing. The flag to indicate that postincrement is required should not be interpreted as an specification of a value to be added to the address. Also add BUGs to catch unimplemented parameter markings in the opcodes table. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mn10300/mm/misalignment.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c
index 614c32b6325b..066ddc625a14 100644
--- a/arch/mn10300/mm/misalignment.c
+++ b/arch/mn10300/mm/misalignment.c
@@ -543,7 +543,7 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
{
unsigned long *postinc = NULL, address = 0, tmp;
- params &= 0x7fffffff;
+ params &= 0x00ffffff;
do {
switch (params & 0xff) {
@@ -631,6 +631,7 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
address += disp;
break;
default:
+ BUG();
return 0;
}
} while ((params >>= 8));
@@ -697,6 +698,7 @@ static int misalignment_reg(unsigned long *registers, unsigned params,
break;
default:
+ BUG();
return 0;
}