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integrate misaligned SSE into code

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This commit is contained in:
Stanislav Shwartsman 2010-12-22 21:24:19 +00:00
parent 43600f3756
commit 709059ddcc
2 changed files with 12 additions and 3 deletions
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11
bochs/cpu/load.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: load.cc,v 1.1 2010-12-22 21:16:02 sshwarts Exp $
// $Id: load.cc,v 1.2 2010-12-22 21:24:19 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2008-2009 Stanislav Shwartsman
@ -78,7 +78,14 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::LOAD_Vdq(bxInstruction_c *i)
{
BxPackedXmmRegister op;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
readVirtualDQwordAligned(i->seg(), eaddr, (Bit8u *) &op);
if (! BX_CPU_THIS_PTR mxcsr.get_misaligned_exception_mask()) {
read_virtual_dqword_aligned(i->seg(), eaddr, (Bit8u *) &op);
}
else {
read_virtual_dqword(i->seg(), eaddr, (Bit8u *) &op);
}
BX_WRITE_XMM_REG(BX_TMP_REGISTER, op);
BX_CPU_CALL_METHOD(i->execute2, (i));

4
bochs/cpu/xmm.h
View File

@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: xmm.h,v 1.32 2010-09-26 20:35:24 sshwarts Exp $
// $Id: xmm.h,v 1.33 2010-12-22 21:24:19 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2003-2009 Stanislav Shwartsman
@ -87,6 +87,8 @@ typedef union bx_xmm_reg_t {
#define BX_XMM_REG_LO_QWORD BX_READ_XMM_REG_LO_QWORD
#define BX_XMM_REG_LO_DWORD BX_READ_XMM_REG_LO_DWORD
#define BX_XMM_REG BX_READ_XMM_REG
/* store XMM register */
#define BX_WRITE_XMM_REG(index, reg) \
{ BX_CPU_THIS_PTR xmm[index] = (reg); }