Commit f911c685 authored Nov 12, 2008 by David Howells Committed by Linus Torvalds Nov 12, 2008

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>

parent b308bf3b

arch/mn10300/mm/misalignment.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}