From e034e2c39aee1800101812045690e0575abb428b Mon Sep 17 00:00:00 2001
From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sat, 23 Jun 2007 18:04:12 +0000
Subject: Handle MIPS64 SEGBITS value correctly.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3011 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-mips/op.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'target-mips/op.c')

diff --git a/target-mips/op.c b/target-mips/op.c
index 66e27e2..715c355 100644
--- a/target-mips/op.c
+++ b/target-mips/op.c
@@ -1328,7 +1328,7 @@ void op_mtc0_entryhi (void)
     /* 1k pages not implemented */
     val = T0 & ((TARGET_PAGE_MASK << 1) | 0xFF);
 #ifdef TARGET_MIPS64
-    val = T0 & 0xC00000FFFFFFFFFFULL;
+    val &= env->SEGMask;
 #endif
     old = env->CP0_EntryHi;
     env->CP0_EntryHi = val;
@@ -1526,7 +1526,8 @@ void op_mtc0_desave (void)
 #ifdef TARGET_MIPS64
 void op_mtc0_xcontext (void)
 {
-    env->CP0_XContext = (env->CP0_XContext & 0x1ffffffffULL) | (T0 & ~0x1ffffffffULL);
+    target_ulong mask = (1ULL << (env->SEGBITS - 7)) - 1;
+    env->CP0_XContext = (env->CP0_XContext & mask) | (T0 & ~mask);
     RETURN();
 }
 
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