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Small optimization

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This commit is contained in:
Stanislav Shwartsman 2007-11-18 18:40:38 +00:00
parent b75a1d9ea5
commit e1496bb9e0
1 changed files with 4 additions and 7 deletions
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11
bochs/cpu/proc_ctrl.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: proc_ctrl.cc,v 1.180 2007-11-17 12:44:10 sshwarts Exp $
// $Id: proc_ctrl.cc,v 1.181 2007-11-18 18:40:38 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
@ -854,13 +854,10 @@ void BX_CPU_C::SMSW_Ew(bxInstruction_c *i)
Bit16u msw;
#if BX_CPU_LEVEL == 2
msw = 0xfff0; /* 80286 init value */
msw |= (BX_CPU_THIS_PTR cr0.get_TS() << 3) |
(BX_CPU_THIS_PTR cr0.get_EM() << 2) |
(BX_CPU_THIS_PTR cr0.get_MP() << 1) |
(BX_CPU_THIS_PTR cr0.get_PE());
msw = 0xfff0; /* 80286 init value */
msw |= BX_CPU_THIS_PTR cr0.val32 & 0x000f;
#else /* 386+ */
msw = BX_CPU_THIS_PTR cr0.val32 & 0xffff;
msw = BX_CPU_THIS_PTR cr0.val32 & 0xffff;
#endif
if (i->modC0()) {