141 lines
3.7 KiB
C
Executable File
141 lines
3.7 KiB
C
Executable File
/////////////////////////////////////////////////////////////////////////
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// $Id: stack.h,v 1.5 2009-10-14 20:45:29 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2007-2009 Stanislav Shwartsman
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// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
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//
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/////////////////////////////////////////////////////////////////////////
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#ifndef BX_PUSHPOP_H
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#define BX_PUSHPOP_H
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BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
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BX_CPU_C::push_16(Bit16u value16)
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{
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/* must use StackAddrSize, and either RSP, ESP or SP accordingly */
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#if BX_SUPPORT_X86_64
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if (StackAddrSize64()) {
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write_virtual_word_64(BX_SEG_REG_SS, RSP-2, value16);
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RSP -= 2;
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}
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else
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#endif
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if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
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write_virtual_word_32(BX_SEG_REG_SS, (Bit32u) (ESP-2), value16);
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ESP -= 2;
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}
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else
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{
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write_virtual_word_32(BX_SEG_REG_SS, (Bit16u) (SP-2), value16);
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SP -= 2;
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}
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}
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BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
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BX_CPU_C::push_32(Bit32u value32)
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{
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/* must use StackAddrSize, and either RSP, ESP or SP accordingly */
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#if BX_SUPPORT_X86_64
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if (StackAddrSize64()) {
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write_virtual_dword_64(BX_SEG_REG_SS, RSP-4, value32);
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RSP -= 4;
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}
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else
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#endif
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if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) { /* StackAddrSize = 32 */
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write_virtual_dword_32(BX_SEG_REG_SS, (Bit32u) (ESP-4), value32);
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ESP -= 4;
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}
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else
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{
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write_virtual_dword_32(BX_SEG_REG_SS, (Bit16u) (SP-4), value32);
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SP -= 4;
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}
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}
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/* push 64 bit operand */
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#if BX_SUPPORT_X86_64
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BX_CPP_INLINE void BX_CPP_AttrRegparmN(1)
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BX_CPU_C::push_64(Bit64u value64)
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{
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write_virtual_qword_64(BX_SEG_REG_SS, RSP-8, value64);
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RSP -= 8;
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}
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#endif
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/* pop 16 bit operand from the stack */
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BX_CPP_INLINE Bit16u BX_CPU_C::pop_16(void)
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{
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Bit16u value16;
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#if BX_SUPPORT_X86_64
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if (StackAddrSize64()) {
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value16 = read_virtual_word_64(BX_SEG_REG_SS, RSP);
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RSP += 2;
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}
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else
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#endif
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if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) {
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value16 = read_virtual_word_32(BX_SEG_REG_SS, ESP);
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ESP += 2;
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}
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else {
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value16 = read_virtual_word_32(BX_SEG_REG_SS, SP);
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SP += 2;
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}
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return value16;
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}
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/* pop 32 bit operand from the stack */
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BX_CPP_INLINE Bit32u BX_CPU_C::pop_32(void)
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{
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Bit32u value32;
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#if BX_SUPPORT_X86_64
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if (StackAddrSize64()) {
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value32 = read_virtual_dword_64(BX_SEG_REG_SS, RSP);
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RSP += 4;
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}
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else
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#endif
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if (BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b) {
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value32 = read_virtual_dword_32(BX_SEG_REG_SS, ESP);
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ESP += 4;
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}
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else {
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value32 = read_virtual_dword_32(BX_SEG_REG_SS, SP);
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SP += 4;
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}
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return value32;
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}
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/* pop 64 bit operand from the stack */
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#if BX_SUPPORT_X86_64
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BX_CPP_INLINE Bit64u BX_CPU_C::pop_64(void)
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{
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Bit64u value64 = read_virtual_qword_64(BX_SEG_REG_SS, RSP);
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RSP += 8;
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return value64;
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}
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#endif // BX_SUPPORT_X86_64
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#endif
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