2001-04-10 06:20:02 +04:00
|
|
|
// Copyright (C) 2001 MandrakeSoft S.A.
|
2001-04-10 05:04:59 +04:00
|
|
|
//
|
|
|
|
// 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"
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
#define LOG_THIS BX_CPU_THIS_PTR
|
2001-04-10 05:04:59 +04:00
|
|
|
|
|
|
|
|
|
|
|
/* the device id and stepping id are loaded into DH & DL upon processor
|
|
|
|
startup. for device id: 3 = 80386, 4 = 80486. just make up a
|
|
|
|
number for the stepping (revision) id. */
|
|
|
|
#define BX_DEVICE_ID 3
|
|
|
|
#define BX_STEPPING_ID 0
|
|
|
|
|
|
|
|
BX_CPU_C::BX_CPU_C(void)
|
|
|
|
{
|
|
|
|
// BX_CPU_C constructor
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
char cpu[8];
|
|
|
|
snprintf(cpu, 8, "[CPU%d]",BX_SIM_ID);
|
2001-04-10 05:04:59 +04:00
|
|
|
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
setprefix(cpu);
|
2001-04-10 05:04:59 +04:00
|
|
|
|
|
|
|
/* hack for the following fields. Its easier to decode mod-rm bytes if
|
|
|
|
you can assume there's always a base & index register used. For
|
|
|
|
modes which don't really use them, point to an empty (zeroed) register.
|
|
|
|
*/
|
|
|
|
empty_register = 0;
|
|
|
|
|
|
|
|
// 16bit address mode base register, used for mod-rm decoding
|
|
|
|
|
|
|
|
_16bit_base_reg[0] = &gen_reg[BX_16BIT_REG_BX].word.rx;
|
|
|
|
_16bit_base_reg[1] = &gen_reg[BX_16BIT_REG_BX].word.rx;
|
|
|
|
_16bit_base_reg[2] = &gen_reg[BX_16BIT_REG_BP].word.rx;
|
|
|
|
_16bit_base_reg[3] = &gen_reg[BX_16BIT_REG_BP].word.rx;
|
|
|
|
_16bit_base_reg[4] = (Bit16u*) &empty_register;
|
|
|
|
_16bit_base_reg[5] = (Bit16u*) &empty_register;
|
|
|
|
_16bit_base_reg[6] = &gen_reg[BX_16BIT_REG_BP].word.rx;
|
|
|
|
_16bit_base_reg[7] = &gen_reg[BX_16BIT_REG_BX].word.rx;
|
|
|
|
|
|
|
|
// 16bit address mode index register, used for mod-rm decoding
|
|
|
|
_16bit_index_reg[0] = &gen_reg[BX_16BIT_REG_SI].word.rx;
|
|
|
|
_16bit_index_reg[1] = &gen_reg[BX_16BIT_REG_DI].word.rx;
|
|
|
|
_16bit_index_reg[2] = &gen_reg[BX_16BIT_REG_SI].word.rx;
|
|
|
|
_16bit_index_reg[3] = &gen_reg[BX_16BIT_REG_DI].word.rx;
|
|
|
|
_16bit_index_reg[4] = &gen_reg[BX_16BIT_REG_SI].word.rx;
|
|
|
|
_16bit_index_reg[5] = &gen_reg[BX_16BIT_REG_DI].word.rx;
|
|
|
|
_16bit_index_reg[6] = (Bit16u*) &empty_register;
|
|
|
|
_16bit_index_reg[7] = (Bit16u*) &empty_register;
|
|
|
|
|
|
|
|
// for decoding instructions: access to seg reg's via index number
|
|
|
|
sreg_mod00_rm16[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod00_rm16[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod00_rm16[2] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod00_rm16[3] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod00_rm16[4] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod00_rm16[5] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod00_rm16[6] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod00_rm16[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
sreg_mod01_rm16[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm16[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm16[2] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod01_rm16[3] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod01_rm16[4] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm16[5] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm16[6] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod01_rm16[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
sreg_mod10_rm16[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm16[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm16[2] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod10_rm16[3] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod10_rm16[4] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm16[5] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm16[6] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod10_rm16[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
// the default segment to use for a one-byte modrm with mod==01b
|
|
|
|
// and rm==i
|
|
|
|
//
|
|
|
|
sreg_mod01_rm32[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm32[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm32[2] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm32[3] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm32[4] = BX_SEG_REG_NULL;
|
|
|
|
// this entry should never be accessed
|
|
|
|
// (escape to 2-byte)
|
|
|
|
sreg_mod01_rm32[5] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod01_rm32[6] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod01_rm32[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
// the default segment to use for a one-byte modrm with mod==10b
|
|
|
|
// and rm==i
|
|
|
|
//
|
|
|
|
sreg_mod10_rm32[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm32[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm32[2] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm32[3] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm32[4] = BX_SEG_REG_NULL;
|
|
|
|
// this entry should never be accessed
|
|
|
|
// (escape to 2-byte)
|
|
|
|
sreg_mod10_rm32[5] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod10_rm32[6] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod10_rm32[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
|
|
|
|
// the default segment to use for a two-byte modrm with mod==00b
|
|
|
|
// and base==i
|
|
|
|
//
|
|
|
|
sreg_mod0_base32[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[2] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[3] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[4] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod0_base32[5] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[6] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod0_base32[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
// the default segment to use for a two-byte modrm with
|
|
|
|
// mod==01b or mod==10b and base==i
|
|
|
|
sreg_mod1or2_base32[0] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod1or2_base32[1] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod1or2_base32[2] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod1or2_base32[3] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod1or2_base32[4] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod1or2_base32[5] = BX_SEG_REG_SS;
|
|
|
|
sreg_mod1or2_base32[6] = BX_SEG_REG_DS;
|
|
|
|
sreg_mod1or2_base32[7] = BX_SEG_REG_DS;
|
|
|
|
|
|
|
|
#if BX_DYNAMIC_TRANSLATION
|
|
|
|
DTWrite8vShim = NULL;
|
|
|
|
DTWrite16vShim = NULL;
|
|
|
|
DTWrite32vShim = NULL;
|
|
|
|
DTRead8vShim = NULL;
|
|
|
|
DTRead16vShim = NULL;
|
|
|
|
DTRead32vShim = NULL;
|
|
|
|
DTReadRMW8vShim = (BxDTShim_t) DTASReadRMW8vShim;
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_DEBUG(( "DTReadRMW8vShim is %x\n", (unsigned) DTReadRMW8vShim ));
|
|
|
|
BX_DEBUG(( "&DTReadRMW8vShim is %x\n", (unsigned) &DTReadRMW8vShim ));
|
2001-04-10 05:04:59 +04:00
|
|
|
DTReadRMW16vShim = NULL;
|
|
|
|
DTReadRMW32vShim = NULL;
|
|
|
|
DTWriteRMW8vShim = (BxDTShim_t) DTASWriteRMW8vShim;
|
|
|
|
DTWriteRMW16vShim = NULL;
|
|
|
|
DTWriteRMW32vShim = NULL;
|
|
|
|
DTSetFlagsOSZAPCPtr = (BxDTShim_t) DTASSetFlagsOSZAPC;
|
|
|
|
DTIndBrHandler = (BxDTShim_t) DTASIndBrHandler;
|
|
|
|
DTDirBrHandler = (BxDTShim_t) DTASDirBrHandler;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
BX_INSTR_INIT();
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_INFO(( "Init.\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
BX_CPU_C::~BX_CPU_C(void)
|
|
|
|
{
|
|
|
|
BX_INSTR_SHUTDOWN();
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_INFO(( "Exit.\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
BX_CPU_C::reset(unsigned source)
|
|
|
|
{
|
|
|
|
UNUSED(source); // either BX_RESET_HARDWARE or BX_RESET_SOFTWARE
|
|
|
|
|
|
|
|
// general registers
|
|
|
|
EAX = 0; // processor passed test :-)
|
|
|
|
EBX = 0; // undefined
|
|
|
|
ECX = 0; // undefined
|
|
|
|
EDX = (BX_DEVICE_ID << 8) | BX_STEPPING_ID; // ???
|
|
|
|
EBP = 0; // undefined
|
|
|
|
ESI = 0; // undefined
|
|
|
|
EDI = 0; // undefined
|
|
|
|
ESP = 0; // undefined
|
|
|
|
|
|
|
|
// all status flags at known values, use BX_CPU_THIS_PTR eflags structure
|
|
|
|
BX_CPU_THIS_PTR lf_flags_status = 0x000000;
|
|
|
|
BX_CPU_THIS_PTR lf_pf = 0;
|
|
|
|
|
|
|
|
// status and control flags register set
|
|
|
|
BX_CPU_THIS_PTR set_CF(0);
|
|
|
|
BX_CPU_THIS_PTR eflags.bit1 = 1;
|
|
|
|
BX_CPU_THIS_PTR set_PF(0);
|
|
|
|
BX_CPU_THIS_PTR eflags.bit3 = 0;
|
|
|
|
BX_CPU_THIS_PTR set_AF(0);
|
|
|
|
BX_CPU_THIS_PTR eflags.bit5 = 0;
|
|
|
|
BX_CPU_THIS_PTR set_ZF(0);
|
|
|
|
BX_CPU_THIS_PTR set_SF(0);
|
|
|
|
BX_CPU_THIS_PTR eflags.tf = 0;
|
|
|
|
BX_CPU_THIS_PTR eflags.if_ = 0;
|
|
|
|
BX_CPU_THIS_PTR eflags.df = 0;
|
|
|
|
BX_CPU_THIS_PTR set_OF(0);
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR eflags.iopl = 0;
|
|
|
|
BX_CPU_THIS_PTR eflags.nt = 0;
|
|
|
|
#endif
|
|
|
|
BX_CPU_THIS_PTR eflags.bit15 = 0;
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR eflags.rf = 0;
|
|
|
|
BX_CPU_THIS_PTR eflags.vm = 0;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 4
|
|
|
|
BX_CPU_THIS_PTR eflags.ac = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR inhibit_mask = 0;
|
|
|
|
BX_CPU_THIS_PTR debug_trap = 0;
|
|
|
|
|
|
|
|
/* instruction pointer */
|
|
|
|
#if BX_CPU_LEVEL < 2
|
|
|
|
BX_CPU_THIS_PTR prev_eip =
|
|
|
|
BX_CPU_THIS_PTR eip = 0x00000000;
|
|
|
|
#else /* from 286 up */
|
|
|
|
BX_CPU_THIS_PTR prev_eip =
|
|
|
|
BX_CPU_THIS_PTR eip = 0x0000FFF0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* CS (Code Segment) and descriptor cache */
|
|
|
|
/* Note: on a real cpu, CS initially points to upper memory. After
|
|
|
|
* the 1st jump, the descriptor base is zero'd out. Since I'm just
|
|
|
|
* going to jump to my BIOS, I don't need to do this.
|
|
|
|
* For future reference:
|
|
|
|
* processor cs.selector cs.base cs.limit EIP
|
|
|
|
* 8086 FFFF FFFF0 FFFF 0000
|
|
|
|
* 286 F000 FF0000 FFFF FFF0
|
|
|
|
* 386+ F000 FFFF0000 FFFF FFF0
|
|
|
|
*/
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.value = 0xf000;
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.executable = 1; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.base = 0x000F0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* SS (Stack Segment) and descriptor cache */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.value = 0x0000;
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.executable = 0; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* DS (Data Segment) and descriptor cache */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.value = 0x0000;
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.executable = 0; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* ES (Extra Segment) and descriptor cache */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.value = 0x0000;
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.executable = 0; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* FS and descriptor cache */
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.value = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.executable = 0; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* GS and descriptor cache */
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.value = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.valid = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.p = 1;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.dpl = 0;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.segment = 1; /* data/code segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.type = 3; /* read/write access */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.executable = 0; /* data/stack segment */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.c_ed = 0; /* normal expand up */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.r_w = 1; /* writeable */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.a = 1; /* accessed */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.limit = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.limit_scaled = 0xFFFF;
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.g = 0; /* byte granular */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.d_b = 0; /* 16bit default size */
|
|
|
|
BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.avl = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* GDTR (Global Descriptor Table Register) */
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR gdtr.base = 0x00000000; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR gdtr.limit = 0x0000; /* undefined */
|
|
|
|
/* ??? AR=Present, Read/Write */
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* IDTR (Interrupt Descriptor Table Register) */
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR idtr.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR idtr.limit = 0x03FF; /* always byte granular */ /* ??? */
|
|
|
|
/* ??? AR=Present, Read/Write */
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* LDTR (Local Descriptor Table Register) */
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
BX_CPU_THIS_PTR ldtr.selector.value = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR ldtr.selector.index = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR ldtr.selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR ldtr.selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.valid = 0; /* not valid */
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.p = 0; /* not present */
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.dpl = 0; /* field not used */
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.segment = 0; /* system segment */
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.type = 2; /* LDT descriptor */
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.u.ldt.base = 0x00000000;
|
|
|
|
BX_CPU_THIS_PTR ldtr.cache.u.ldt.limit = 0xFFFF;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* TR (Task Register) */
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
/* ??? I don't know what state the TR comes up in */
|
|
|
|
BX_CPU_THIS_PTR tr.selector.value = 0x0000;
|
|
|
|
BX_CPU_THIS_PTR tr.selector.index = 0x0000; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr.selector.ti = 0;
|
|
|
|
BX_CPU_THIS_PTR tr.selector.rpl = 0;
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR tr.cache.valid = 0;
|
|
|
|
BX_CPU_THIS_PTR tr.cache.p = 0;
|
|
|
|
BX_CPU_THIS_PTR tr.cache.dpl = 0; /* field not used */
|
|
|
|
BX_CPU_THIS_PTR tr.cache.segment = 0;
|
|
|
|
BX_CPU_THIS_PTR tr.cache.type = 0; /* invalid */
|
|
|
|
BX_CPU_THIS_PTR tr.cache.u.tss286.base = 0x00000000; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr.cache.u.tss286.limit = 0x0000; /* undefined */
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// DR0 - DR7 (Debug Registers)
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR dr0 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR dr1 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR dr2 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR dr3 = 0; /* undefined */
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL == 3
|
|
|
|
BX_CPU_THIS_PTR dr6 = 0xFFFF1FF0;
|
|
|
|
BX_CPU_THIS_PTR dr7 = 0x00000400;
|
|
|
|
#elif BX_CPU_LEVEL == 4
|
|
|
|
BX_CPU_THIS_PTR dr6 = 0xFFFF1FF0;
|
|
|
|
BX_CPU_THIS_PTR dr7 = 0x00000400;
|
|
|
|
#elif BX_CPU_LEVEL == 5
|
|
|
|
BX_CPU_THIS_PTR dr6 = 0xFFFF0FF0;
|
|
|
|
BX_CPU_THIS_PTR dr7 = 0x00000400;
|
|
|
|
#else
|
|
|
|
# error "DR6,7: CPU > 5"
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
/* test registers 3-7 (unimplemented) */
|
|
|
|
BX_CPU_THIS_PTR tr3 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr4 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr5 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr6 = 0; /* undefined */
|
|
|
|
BX_CPU_THIS_PTR tr7 = 0; /* undefined */
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if BX_CPU_LEVEL >= 2
|
|
|
|
// MSW (Machine Status Word), so called on 286
|
|
|
|
// CR0 (Control Register 0), so called on 386+
|
|
|
|
BX_CPU_THIS_PTR cr0.ts = 0; // no task switch
|
|
|
|
BX_CPU_THIS_PTR cr0.em = 0; // emulate math coprocessor
|
|
|
|
BX_CPU_THIS_PTR cr0.mp = 0; // wait instructions not trapped
|
|
|
|
BX_CPU_THIS_PTR cr0.pe = 0; // real mode
|
|
|
|
BX_CPU_THIS_PTR cr0.val32 = 0;
|
|
|
|
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR cr0.pg = 0; // paging disabled
|
|
|
|
// no change to cr0.val32
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if BX_CPU_LEVEL >= 4
|
|
|
|
BX_CPU_THIS_PTR cr0.cd = 1; // caching disabled
|
|
|
|
BX_CPU_THIS_PTR cr0.nw = 1; // not write-through
|
|
|
|
BX_CPU_THIS_PTR cr0.am = 0; // disable alignment check
|
|
|
|
BX_CPU_THIS_PTR cr0.wp = 0; // disable write-protect
|
|
|
|
BX_CPU_THIS_PTR cr0.ne = 0; // ndp exceptions through int 13H, DOS compat
|
|
|
|
BX_CPU_THIS_PTR cr0.val32 |= 0x60000000;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// handle reserved bits
|
|
|
|
#if BX_CPU_LEVEL == 3
|
|
|
|
// reserved bits all set to 1 on 386
|
|
|
|
BX_CPU_THIS_PTR cr0.val32 |= 0x7ffffff0;
|
|
|
|
#elif BX_CPU_LEVEL >= 4
|
|
|
|
// bit 4 is hardwired to 1 on all x86
|
|
|
|
BX_CPU_THIS_PTR cr0.val32 |= 0x00000010;
|
|
|
|
#endif
|
|
|
|
#endif // CPU >= 2
|
|
|
|
|
|
|
|
|
|
|
|
#if BX_CPU_LEVEL >= 3
|
|
|
|
BX_CPU_THIS_PTR cr2 = 0;
|
|
|
|
BX_CPU_THIS_PTR cr3 = 0;
|
|
|
|
#endif
|
|
|
|
#if BX_CPU_LEVEL >= 4
|
|
|
|
BX_CPU_THIS_PTR cr4 = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR EXT = 0;
|
|
|
|
BX_INTR = 0;
|
|
|
|
|
|
|
|
TLB_init();
|
|
|
|
|
|
|
|
BX_CPU_THIS_PTR bytesleft = 0;
|
|
|
|
BX_CPU_THIS_PTR fetch_ptr = NULL;
|
|
|
|
BX_CPU_THIS_PTR prev_linear_page = 0;
|
|
|
|
BX_CPU_THIS_PTR prev_phy_page = 0;
|
|
|
|
BX_CPU_THIS_PTR max_phy_addr = 0;
|
|
|
|
|
|
|
|
#if BX_DEBUGGER
|
|
|
|
#ifdef MAGIC_BREAKPOINT
|
|
|
|
BX_CPU_THIS_PTR magic_break = 0;
|
|
|
|
#endif
|
|
|
|
BX_CPU_THIS_PTR stop_reason = STOP_NO_REASON;
|
|
|
|
BX_CPU_THIS_PTR trace = 0;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Init the Floating Point Unit
|
|
|
|
fpu_init();
|
|
|
|
|
|
|
|
#if BX_DYNAMIC_TRANSLATION
|
|
|
|
dynamic_init();
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
BX_CPU_C::sanity_checks(void)
|
|
|
|
{
|
|
|
|
Bit8u al, cl, dl, bl, ah, ch, dh, bh;
|
|
|
|
Bit16u ax, cx, dx, bx, sp, bp, si, di;
|
|
|
|
Bit32u eax, ecx, edx, ebx, esp, ebp, esi, edi;
|
|
|
|
|
|
|
|
EAX = 0xFFEEDDCC;
|
|
|
|
ECX = 0xBBAA9988;
|
|
|
|
EDX = 0x77665544;
|
|
|
|
EBX = 0x332211FF;
|
|
|
|
ESP = 0xEEDDCCBB;
|
|
|
|
EBP = 0xAA998877;
|
|
|
|
ESI = 0x66554433;
|
|
|
|
EDI = 0x2211FFEE;
|
|
|
|
|
|
|
|
al = AL;
|
|
|
|
cl = CL;
|
|
|
|
dl = DL;
|
|
|
|
bl = BL;
|
|
|
|
ah = AH;
|
|
|
|
ch = CH;
|
|
|
|
dh = DH;
|
|
|
|
bh = BH;
|
|
|
|
|
|
|
|
if ( al != (EAX & 0xFF) ||
|
|
|
|
cl != (ECX & 0xFF) ||
|
|
|
|
dl != (EDX & 0xFF) ||
|
|
|
|
bl != (EBX & 0xFF) ||
|
|
|
|
ah != ((EAX >> 8) & 0xFF) ||
|
|
|
|
ch != ((ECX >> 8) & 0xFF) ||
|
|
|
|
dh != ((EDX >> 8) & 0xFF) ||
|
|
|
|
bh != ((EBX >> 8) & 0xFF) ) {
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_PANIC(("problems using BX_READ_8BIT_REG()!\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
ax = AX;
|
|
|
|
cx = CX;
|
|
|
|
dx = DX;
|
|
|
|
bx = BX;
|
|
|
|
sp = SP;
|
|
|
|
bp = BP;
|
|
|
|
si = SI;
|
|
|
|
di = DI;
|
|
|
|
|
|
|
|
if ( ax != (EAX & 0xFFFF) ||
|
|
|
|
cx != (ECX & 0xFFFF) ||
|
|
|
|
dx != (EDX & 0xFFFF) ||
|
|
|
|
bx != (EBX & 0xFFFF) ||
|
|
|
|
sp != (ESP & 0xFFFF) ||
|
|
|
|
bp != (EBP & 0xFFFF) ||
|
|
|
|
si != (ESI & 0xFFFF) ||
|
|
|
|
di != (EDI & 0xFFFF) ) {
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_PANIC(("problems using BX_READ_16BIT_REG()!\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
eax = EAX;
|
|
|
|
ecx = ECX;
|
|
|
|
edx = EDX;
|
|
|
|
ebx = EBX;
|
|
|
|
esp = ESP;
|
|
|
|
ebp = EBP;
|
|
|
|
esi = ESI;
|
|
|
|
edi = EDI;
|
|
|
|
|
|
|
|
|
|
|
|
if (sizeof(Bit8u) != 1 || sizeof(Bit8s) != 1)
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_PANIC(("data type Bit8u or Bit8s is not of length 1 byte!\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
if (sizeof(Bit16u) != 2 || sizeof(Bit16s) != 2)
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_PANIC(("data type Bit16u or Bit16s is not of length 2 bytes!\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
if (sizeof(Bit32u) != 4 || sizeof(Bit32s) != 4)
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_PANIC(("data type Bit32u or Bit32s is not of length 4 bytes!\n"));
|
2001-04-10 05:04:59 +04:00
|
|
|
|
merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
|
|
|
BX_DEBUG(( "#(%u)all sanity checks passed!\n", BX_SIM_ID ));
|
2001-04-10 05:04:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
BX_CPU_C::set_INTR(Boolean value)
|
|
|
|
{
|
|
|
|
BX_CPU_THIS_PTR async_event = 1;
|
|
|
|
}
|