From f911c685d65ea1855eb3f95b8eaf871e5d9342fa Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 12 Nov 2008 15:35:20 +0000 Subject: [PATCH] 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 Signed-off-by: Linus Torvalds --- arch/mn10300/mm/misalignment.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c index 614c32b6325..066ddc625a1 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; } -- 2.41.0