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MN10300: Fix register-postinc addressing misalignment handling

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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>
This commit is contained in:
David Howells 2008-11-12 15:35:20 +00:00 committed by Linus Torvalds
parent b308bf3be1
commit f911c685d6
1 changed files with 3 additions and 1 deletions
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4
arch/mn10300/mm/misalignment.c
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@ -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;
}