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do not produce fpu2mmx transition if mem write faults

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This commit is contained in:
Stanislav Shwartsman 2009-02-13 10:15:16 +00:00
parent 714dc45589
commit f1eb1d00fd
1 changed files with 13 additions and 5 deletions
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18
bochs/cpu/mmx.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: mmx.cc,v 1.84 2009-01-16 18:18:58 sshwarts Exp $
// $Id: mmx.cc,v 1.85 2009-02-13 10:15:16 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2002 Stanislav Shwartsman
@ -1230,7 +1230,6 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVD_EdPd(bxInstruction_c *i)
{
#if BX_SUPPORT_MMX
BX_CPU_THIS_PTR prepareMMX();
BX_CPU_THIS_PTR prepareFPU2MMX(); /* FPU2MMX transition */
BxPackedMmxRegister op = BX_READ_MMX_REG(i->nnn());
@ -1243,6 +1242,9 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVD_EdPd(bxInstruction_c *i)
/* pointer, segment address pair */
write_virtual_dword(i->seg(), eaddr, MMXUD0(op));
}
// do not cause FPU2MMX transition if memory write faults
BX_CPU_THIS_PTR prepareFPU2MMX();
#else
BX_INFO(("MOVD_EdPd: required MMX, use --enable-mmx option"));
exception(BX_UD_EXCEPTION, 0, 0);
@ -1255,7 +1257,6 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVD_EdPd(bxInstruction_c *i)
void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_EqPq(bxInstruction_c *i)
{
BX_CPU_THIS_PTR prepareMMX();
BX_CPU_THIS_PTR prepareFPU2MMX(); /* FPU2MMX transition */
BxPackedMmxRegister op = BX_READ_MMX_REG(i->nnn());
@ -1268,6 +1269,9 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_EqPq(bxInstruction_c *i)
/* pointer, segment address pair */
write_virtual_qword_64(i->seg(), eaddr, MMXUQ(op));
}
// do not cause FPU2MMX transition if memory write faults
BX_CPU_THIS_PTR prepareFPU2MMX();
}
#endif
@ -1277,7 +1281,6 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_QqPq(bxInstruction_c *i)
{
#if BX_SUPPORT_MMX
BX_CPU_THIS_PTR prepareMMX();
BX_CPU_THIS_PTR prepareFPU2MMX(); /* FPU2MMX transition */
BxPackedMmxRegister op = BX_READ_MMX_REG(i->nnn());
@ -1290,6 +1293,9 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVQ_QqPq(bxInstruction_c *i)
/* pointer, segment address pair */
write_virtual_qword(i->seg(), eaddr, MMXUQ(op));
}
// do not cause FPU2MMX transition if memory write faults
BX_CPU_THIS_PTR prepareFPU2MMX();
#else
BX_INFO(("MOVQ_QqPq: required MMX, use --enable-mmx option"));
exception(BX_UD_EXCEPTION, 0, 0);
@ -2077,11 +2083,13 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVNTQ_MqPq(bxInstruction_c *i)
{
#if BX_SUPPORT_3DNOW || BX_SUPPORT_SSE >= 1
BX_CPU_THIS_PTR prepareMMX();
BX_CPU_THIS_PTR prepareFPU2MMX(); /* FPU2MMX transition */
BxPackedMmxRegister reg = BX_READ_MMX_REG(i->nnn());
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_qword(i->seg(), eaddr, MMXUQ(reg));
// do not cause FPU2MMX transition if memory write faults
BX_CPU_THIS_PTR prepareFPU2MMX();
#else
BX_INFO(("MOVNTQ_MqPq: required SSE or 3DNOW, use --enable-sse or --enable-3dnow options"));
exception(BX_UD_EXCEPTION, 0, 0);