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SH4: Fixed last UTLB unused and URB/URC management

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Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6675 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-03-03 09:14:01 +00:00
parent d905dba48f
commit 927e3a4e06
1 changed files with 1 additions and 1 deletions
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2
target-sh4/helper.c
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@ -304,7 +304,7 @@ static void increment_urc(CPUState * env)
urb = ((env->mmucr) >> 18) & 0x3f;
urc = ((env->mmucr) >> 10) & 0x3f;
urc++;
if (urc > urb || urc > (UTLB_SIZE - 1))
if ((urb > 0 && urc > urb) || urc > (UTLB_SIZE - 1))
urc = 0;
env->mmucr = (env->mmucr & 0xffff03ff) | (urc << 10);
}