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/////////////////////////////////////////////////////////////////////////
// $Id: stack.h 11106 2012-03-25 11:54:32Z sshwarts $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2007-2012 Stanislav Shwartsman
// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
//
/////////////////////////////////////////////////////////////////////////
#ifndef BX_PUSHPOP_H
#define BX_PUSHPOP_H
BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
BX_CPU_C::push_16(Bit16u value16)
{
#if BX_SUPPORT_X86_64
if (long64_mode()) { /* StackAddrSize = 64 */
stack_write_word(RSP-2, value16);
RSP -= 2;
}
else
#endif
if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
stack_write_word((Bit32u) (ESP-2), value16);
ESP -= 2;
}
else /* StackAddrSize = 16 */
{
stack_write_word((Bit16u) (SP-2), value16);
SP -= 2;
}
}
BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
BX_CPU_C::push_32(Bit32u value32)
{
#if BX_SUPPORT_X86_64
if (long64_mode()) { /* StackAddrSize = 64 */
stack_write_dword(RSP-4, value32);
RSP -= 4;
}
else
#endif
if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
stack_write_dword((Bit32u) (ESP-4), value32);
ESP -= 4;
}
else /* StackAddrSize = 16 */
{
stack_write_dword((Bit16u) (SP-4), value32);
SP -= 4;
}
}
/* push 64 bit operand */
#if BX_SUPPORT_X86_64
BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
BX_CPU_C::push_64(Bit64u value64)
{
/* StackAddrSize = 64 */
stack_write_qword(RSP-8, value64);
RSP -= 8;
}
#endif
/* pop 16 bit operand from the stack */
BX_CPP_INLINE Bit16u BX_CPU_C::pop_16(void)
{
Bit16u value16;
#if BX_SUPPORT_X86_64
if (long64_mode()) { /* StackAddrSize = 64 */
value16 = stack_read_word(RSP);
RSP += 2;
}
else
#endif
if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
value16 = stack_read_word(ESP);
ESP += 2;
}
else { /* StackAddrSize = 16 */
value16 = stack_read_word(SP);
SP += 2;
}
return value16;
}
/* pop 32 bit operand from the stack */
BX_CPP_INLINE Bit32u BX_CPU_C::pop_32(void)
{
Bit32u value32;
#if BX_SUPPORT_X86_64
if (long64_mode()) { /* StackAddrSize = 64 */
value32 = stack_read_dword(RSP);
RSP += 4;
}
else
#endif
if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
value32 = stack_read_dword(ESP);
ESP += 4;
}
else { /* StackAddrSize = 16 */
value32 = stack_read_dword(SP);
SP += 4;
}
return value32;
}
/* pop 64 bit operand from the stack */
#if BX_SUPPORT_X86_64
BX_CPP_INLINE Bit64u BX_CPU_C::pop_64(void)
{
/* StackAddrSize = 64 */
Bit64u value64 = stack_read_qword(RSP);
RSP += 8;
return value64;
}
#endif // BX_SUPPORT_X86_64
#endif
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