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Do not look on mxcsr_mask field when restoring mxcsr register in FXRSTOR

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At least my hardware CPU doesn't
This commit is contained in:
Stanislav Shwartsman 2005-09-24 16:56:20 +00:00
parent 0a0ddf1820
commit b9cc8b5b0d
1 changed files with 3 additions and 4 deletions
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7
bochs/cpu/sse_move.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: sse_move.cc,v 1.45 2005-09-23 16:45:41 sshwarts Exp $
// $Id: sse_move.cc,v 1.46 2005-09-24 16:56:20 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2003 Stanislav Shwartsman
@ -217,9 +217,8 @@ void BX_CPU_C::FXRSTOR(bxInstruction_c *i)
{
readVirtualDQwordAligned(i->seg(), RMAddr(i) + 16, (Bit8u *) &xmm);
Bit32u new_mxcsr = xmm.xmm32u(2), mxcsr_mask = xmm.xmm32u(3);
if(! mxcsr_mask) mxcsr_mask = MXCSR_MASK;
if(new_mxcsr & ~mxcsr_mask)
Bit32u new_mxcsr = xmm.xmm32u(2);
if(new_mxcsr & ~MXCSR_MASK)
exception(BX_GP_EXCEPTION, 0, 0);
BX_MXCSR_REGISTER = new_mxcsr;