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Handle MIPS64 SEGBITS value correctly.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3011 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-06-23 18:04:12 +00:00
parent 5c40d2bd48
commit e034e2c39a
5 changed files with 32 additions and 16 deletions
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5
target-mips/op.c
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@ -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();
}