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fixed memory access decoding in presence of evex prefix

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This commit is contained in:
Stanislav Shwartsman 2013-11-30 18:51:27 +00:00
parent ac82b38736
commit 7db6c647b0
1 changed files with 3 additions and 3 deletions
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6
bochs/cpu/fetchdecode64.cc
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@ -2032,7 +2032,7 @@ fetch_b1:
}
mod_mem = 1;
i->setSibBase(rm); // initialize with rm to use BxResolve64Base
i->setSibBase(rm & 0xf); // initialize with rm to use BxResolve64Base
i->setSibIndex(BX_NIL_REGISTER);
// initialize displ32 with zero to include cases with no diplacement
i->modRMForm.displ32u = 0;
@ -2068,11 +2068,11 @@ fetch_b1:
index = (sib & 0x7) | rex_x; sib >>= 3;
scale = sib;
i->setSibScale(scale);
i->setSibBase(base);
i->setSibBase(base & 0xf);
// this part is a little tricky - assign index value always,
// it will be really used if the instruction is Gather. Others
// assume that BxResolve32Base will do the right thing.
i->setSibIndex(index);
i->setSibIndex(index & 0xf);
if (index != 4) {
if (i->as64L())
i->ResolveModrm = &BX_CPU_C::BxResolve64BaseIndex;