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-rw-r--r--target-mips/op.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-mips/op.c b/target-mips/op.c
index a0611e0..835b02a 100644
--- a/target-mips/op.c
+++ b/target-mips/op.c
@@ -1283,7 +1283,7 @@ void op_mtc0_context (void)
void op_mtc0_pagemask (void)
{
/* 1k pages not implemented */
- env->CP0_PageMask = T0 & 0x1FFFE000;
+ env->CP0_PageMask = T0 & (0x1FFFFFFF & (TARGET_PAGE_MASK << 1));
RETURN();
}