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// Copyright (C) 2001 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "bochs.h"
#define LOG_THIS genlog->
// Nomenclature used to signify argument types
//
// Es = single real
// El = double real
// Ea = 14/28 bytes 98/108b bytes (FRSTOR,FSAVE)???
// Ew = word integer (2 bytes)
// Ed = dword integer (4 bytes) (short int)
// Et = extended real
// Eb = packed BCD
// Eq = quadword integer (8 bytes) (long integer)
void
BX_CPU_C::ESC0(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC0 not implemented"));
#endif
}
void
BX_CPU_C::ESC1(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC1 not implemented"));
#endif
}
void
BX_CPU_C::ESC2(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC2 not implemented"));
#endif
}
void
BX_CPU_C::ESC3(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
//BX_DEBUG(( "CS:EIP = %04x:%08x",
// BX_CPU.sregs[BX_SEG_REG_CS].selector.value, BX_CPU.prev_eip));
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC3 not implemented"));
#endif
}
void
BX_CPU_C::ESC4(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC4 not implemented"));
#endif
}
void
BX_CPU_C::ESC5(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC5 not implemented"));
#endif
}
void
BX_CPU_C::ESC6(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC6 not implemented"));
#endif
}
void
BX_CPU_C::ESC7(BxInstruction_t *i)
{
if ( BX_CPU_THIS_PTR cr0.em || BX_CPU_THIS_PTR cr0.ts ) {
exception(BX_NM_EXCEPTION, 0, 0);
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("ESC7 not implemented"));
#endif
}
void
BX_CPU_C::FWAIT(BxInstruction_t *i)
{
#if BX_CPU_LEVEL < 3
// WAIT doesn't generate single steps on 8086.
// The same goes for prefix instructions, and instructions which
// modify segment registers. (pg4-16)
// single_step_event = 0;
BX_PANIC(("WAIT: not implemented for < 386"));
#else // BX_CPU_LEVEL >= 3
if ( BX_CPU_THIS_PTR cr0.ts && BX_CPU_THIS_PTR cr0.mp ) {
exception(BX_NM_EXCEPTION, 0, 0); // no error
}
#if BX_SUPPORT_FPU
fpu_execute(i);
#else
BX_INFO(("FWAIT: no FPU"));
#endif
#endif
}
#if BX_SUPPORT_FPU==0
// if supporting FPU, this function in glue logic file
void
BX_CPU_C::fpu_init(void)
{
}
#endif
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