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Simple implementations of the new double quadword functions in

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access.cc for SSE[2] implementation by Stanislav.
This commit is contained in:
Kevin Lawton 2002-10-11 13:55:26 +00:00
parent 14f9f230a8
commit cffded3829
1 changed files with 29 additions and 1 deletions
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30
bochs/cpu/access.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: access.cc,v 1.31 2002-10-11 01:11:11 kevinlawton Exp $
// $Id: access.cc,v 1.32 2002-10-11 13:55:26 kevinlawton Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
@ -1163,22 +1163,50 @@ accessOK:
void
BX_CPU_C::readVirtualDQword(unsigned s, bx_address offset, Bit8u *data)
{
// Read Double Quadword.
Bit64u *qwords = (Bit64u*) data;
read_virtual_qword(s, offset+0, &qwords[0]);
read_virtual_qword(s, offset+8, &qwords[1]);
}
void
BX_CPU_C::readVirtualDQwordAligned(unsigned s, bx_address offset, Bit8u *data)
{
// Read Double Quadword; access must be aligned on 16-byte boundary.
Bit64u *qwords = (Bit64u*) data;
// If double quadword access is unaligned, #GP(0).
if (offset & 0xf)
exception(BX_GP_EXCEPTION, 0, 0);
read_virtual_qword(s, offset+0, &qwords[0]);
read_virtual_qword(s, offset+8, &qwords[1]);
}
void
BX_CPU_C::writeVirtualDQword(unsigned s, bx_address offset, Bit8u *data)
{
// Write Double Quadword.
Bit64u *qwords = (Bit64u*) data;
write_virtual_qword(s, offset+0, &qwords[0]);
write_virtual_qword(s, offset+8, &qwords[1]);
}
void
BX_CPU_C::writeVirtualDQwordAligned(unsigned s, bx_address offset, Bit8u *data)
{
// Write Double Quadword; access must be aligned on 16-byte boundary.
Bit64u *qwords = (Bit64u*) data;
// If double quadword access is unaligned, #GP(0).
if (offset & 0xf)
exception(BX_GP_EXCEPTION, 0, 0);
write_virtual_qword(s, offset+0, &qwords[0]);
write_virtual_qword(s, offset+8, &qwords[1]);
}
#endif // #if BX_SUPPORT_SSE