Bochs/bochs/cpu/init.cc

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/////////////////////////////////////////////////////////////////////////
2003-08-07 23:22:37 +04:00
// $Id: init.cc,v 1.48 2003-08-07 19:22:37 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// 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
#define NEED_CPU_REG_SHORTCUTS 1
#include "bochs.h"
#define LOG_THIS BX_CPU_THIS_PTR
/* 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(): bx_cpuid(0)
#if BX_SUPPORT_APIC
,local_apic (this)
#endif
{
// in case of SMF, you cannot reference any member data
// in the constructor because the only access to it is via
// global variables which aren't initialized quite yet.
2001-06-27 23:16:01 +04:00
put("CPU");
settype (CPU0LOG);
}
2002-09-14 04:51:46 +04:00
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
#if BX_WITH_WX
#if BX_SMP_PROCESSORS!=1
#ifdef __GNUC__
#warning cpu_param_handler only supports parameters for one processor.
#endif
// To fix this, I think I will need to change bx_param_num_c::set_handler
// so that I pass in a void* data value. The void* will be passed to each
// handler. In this case, I would pass a pointer to the BX_CPU_C object
// in the void*, then in the handler I'd cast it back to BX_CPU_C and call
// BX_CPU_C::cpu_param_handler() which then could be a member function. -BBD
#endif
#define CASE_SEG_REG_GET(x) \
case BXP_CPU_SEG_##x: \
return BX_CPU(0)->sregs[BX_SEG_REG_##x].selector.value;
#define CASE_SEG_REG_SET(reg, val) \
case BXP_CPU_SEG_##reg: \
BX_CPU(0)->load_seg_reg (&BX_CPU(0)->sregs[BX_SEG_REG_##reg],val); \
break;
#define CASE_LAZY_EFLAG_GET(flag) \
case BXP_CPU_EFLAGS_##flag: \
return BX_CPU(0)->get_##flag ();
#define CASE_LAZY_EFLAG_SET(flag, val) \
case BXP_CPU_EFLAGS_##flag: \
BX_CPU(0)->set_##flag(val); \
break;
#define CASE_EFLAG_GET(flag) \
case BXP_CPU_EFLAGS_##flag: \
return BX_CPU(0)->get_##flag ();
#define CASE_EFLAG_SET(flag, val) \
case BXP_CPU_EFLAGS_##flag: \
BX_CPU(0)->set_##flag(val); \
break;
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
// implement get/set handler for parameters that need unusual set/get
static Bit64s
cpu_param_handler (bx_param_c *param, int set, Bit64s val)
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
{
bx_id id = param->get_id ();
if (set) {
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
switch (id) {
CASE_SEG_REG_SET (CS, val);
CASE_SEG_REG_SET (DS, val);
CASE_SEG_REG_SET (SS, val);
CASE_SEG_REG_SET (ES, val);
CASE_SEG_REG_SET (FS, val);
CASE_SEG_REG_SET (GS, val);
case BXP_CPU_SEG_LDTR:
BX_CPU(0)->panic("setting LDTR not implemented");
break;
case BXP_CPU_SEG_TR:
BX_CPU(0)->panic ("setting TR not implemented");
break;
CASE_LAZY_EFLAG_SET (OF, val);
CASE_LAZY_EFLAG_SET (SF, val);
CASE_LAZY_EFLAG_SET (ZF, val);
CASE_LAZY_EFLAG_SET (AF, val);
CASE_LAZY_EFLAG_SET (PF, val);
CASE_LAZY_EFLAG_SET (CF, val);
CASE_EFLAG_SET (ID, val);
//CASE_EFLAG_SET (VIP, val);
//CASE_EFLAG_SET (VIF, val);
CASE_EFLAG_SET (AC, val);
CASE_EFLAG_SET (VM, val);
CASE_EFLAG_SET (RF, val);
CASE_EFLAG_SET (NT, val);
CASE_EFLAG_SET (IOPL, val);
CASE_EFLAG_SET (DF, val);
CASE_EFLAG_SET (IF, val);
CASE_EFLAG_SET (TF, val);
default:
BX_CPU(0)->panic ("cpu_param_handler set id %d not handled", id);
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
}
} else {
switch (id) {
CASE_SEG_REG_GET (CS);
CASE_SEG_REG_GET (DS);
CASE_SEG_REG_GET (SS);
CASE_SEG_REG_GET (ES);
CASE_SEG_REG_GET (FS);
CASE_SEG_REG_GET (GS);
case BXP_CPU_SEG_LDTR:
return BX_CPU(0)->ldtr.selector.value;
break;
case BXP_CPU_SEG_TR:
return BX_CPU(0)->tr.selector.value;
break;
CASE_LAZY_EFLAG_GET (OF);
CASE_LAZY_EFLAG_GET (SF);
CASE_LAZY_EFLAG_GET (ZF);
CASE_LAZY_EFLAG_GET (AF);
CASE_LAZY_EFLAG_GET (PF);
CASE_LAZY_EFLAG_GET (CF);
CASE_EFLAG_GET (ID);
//CASE_EFLAG_GET (VIP);
//CASE_EFLAG_GET (VIF);
CASE_EFLAG_GET (AC);
CASE_EFLAG_GET (VM);
CASE_EFLAG_GET (RF);
CASE_EFLAG_GET (NT);
CASE_EFLAG_GET (IOPL);
CASE_EFLAG_GET (DF);
CASE_EFLAG_GET (IF);
CASE_EFLAG_GET (TF);
default:
BX_CPU(0)->panic ("cpu_param_handler get id %d ('%s') not handled", id, param->get_name ());
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
}
}
return val;
}
#undef CASE_SEG_REG_GET
#undef CASE_SEG_REG_SET
- apply a patch I've been working on - modified files: config.h.in cpu/init.cc debug/dbg_main.cc gui/control.cc gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h iodev/keyboard.cc ---------------------------------------------------------------------- Patch name: patch.wx-show-cpu2 Author: Bryce Denney Date: Fri Sep 6 12:13:28 EDT 2002 Description: Second try at implementing the "Debug:Show Cpu" and "Debug:Show Keyboard" dialog with values that change as the simulation proceeds. (Nobody gets to see the first try.) This is the first step toward making something resembling a wxWindows debugger. First, variables which are going to be visible in the CI must be registered as parameters. For some variables, it might be acceptable to change them from Bit32u into bx_param_num_c and access them only with set/get methods, but for most variables it would be a horrible pain and wreck performance. To deal with this, I introduced the concept of a shadow parameter. A normal parameter has its value stored inside the struct, but a shadow parameter has only a pointer to the value. Shadow params allow you to treat any variable as if it was a parameter, without having to change its type and access it using get/set methods. Of course, a shadow param's value is controlled by someone else, so it can change at any time. To demonstrate and test the registration of shadow parameters, I added code in cpu/init.cc to register a few CPU registers and code in iodev/keyboard.cc to register a few keyboard state values. Now these parameters are visible in the Debug:Show CPU and Debug:Show Keyboard dialog boxes. The Debug:Show* dialog boxes are created by the ParamDialog class, which already understands how to display each type of parameter, including the new shadow parameters (because they are just a subclass of a normal parameter class). I have added a ParamDialog::Refresh() method, which rereads the value from every parameter that it is displaying and changes the displayed value. At the moment, in the Debug:Show CPU dialog, changing the values has no effect. However this is trivial to add when it's time (just call CommitChanges!). It wouldn't really make sense to change the values unless you have paused the simulation, for example when single stepping with the debugger. The Refresh() method must be called periodically or else the dialog will show the initial values forever. At the moment, Refresh() is called when the simulator sends an async event called BX_ASYNC_EVT_REFRESH, created by a call to SIM->refresh_ci (). Details: - implement shadow parameter class for Bit32s, called bx_shadow_num_c. implement shadow parameter class for Boolean, called bx_shadow_bool_c. more to follow (I need one for every type!) - now the simulator thread can request that the config interface refresh its display. For now, the refresh event causes the CI to check every parameter it is watching and change the display value. Later, it may be worth the trouble to keep track of which parameters have actually changed. Code in the simulator thread calls SIM->refresh_ci(), which creates an async event called BX_ASYNC_EVT_REFRESH and sends it to the config interface. When it arrives in the wxWindows gui thread, it calls RefreshDialogs(), which calls the Refresh() method on any dialogs that might need it. - in the debugger, SIM->refresh_ci() is called before every prompt is printed. Otherwise, the refresh would wait until the next SIM->periodic(), which might be thousands of cycles. This way, when you're single stepping, the dialogs update with every step. - To improve performance, the CI has a flag (MyFrame::WantRefresh()) which tells whether it has any need for refresh events. If no dialogs are showing that need refresh events, then no event is sent between threads. - add a few defaults to the param classes that affect the settings of newly created parameters. When declaring a lot of params with similar settings it's more compact to set the default for new params rather than to change each one separately. default_text_format is the printf format string for displaying numbers. default_base is the default base for displaying numbers (0, 16, 2, etc.) - I added to ParamDialog to make it able to display modeless dialog boxes such as "Debug:Show CPU". The new Refresh() method queries all the parameters for their current value and changes the value in the wxWindows control. The ParamDialog class still needs a little work; for example, if it's modal it should have Cancel/Ok buttons, but if it's going to be modeless it should maybe have Apply (commit any changes) and Close.
2002-09-06 20:43:26 +04:00
#endif
void BX_CPU_C::init(BX_MEM_C *addrspace)
{
2003-08-07 23:22:37 +04:00
BX_DEBUG(( "Init $Id: init.cc,v 1.48 2003-08-07 19:22:37 sshwarts Exp $"));
// BX_CPU_C constructor
BX_CPU_THIS_PTR set_INTR (0);
#if BX_SUPPORT_APIC
local_apic.init ();
#endif
// in SMP mode, the prefix of the CPU will be changed to [CPUn] in
// bx_local_apic_c::set_id as soon as the apic ID is assigned.
/* 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;
2002-09-14 04:51:46 +04:00
#if BX_SUPPORT_X86_64
sreg_mod01_rm32[8] = BX_SEG_REG_DS;
sreg_mod01_rm32[9] = BX_SEG_REG_DS;
sreg_mod01_rm32[10] = BX_SEG_REG_DS;
sreg_mod01_rm32[11] = BX_SEG_REG_DS;
sreg_mod01_rm32[12] = BX_SEG_REG_DS;
sreg_mod01_rm32[13] = BX_SEG_REG_DS;
sreg_mod01_rm32[14] = BX_SEG_REG_DS;
sreg_mod01_rm32[15] = BX_SEG_REG_DS;
#endif
// 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;
2002-09-14 04:51:46 +04:00
#if BX_SUPPORT_X86_64
sreg_mod10_rm32[8] = BX_SEG_REG_DS;
sreg_mod10_rm32[9] = BX_SEG_REG_DS;
sreg_mod10_rm32[10] = BX_SEG_REG_DS;
sreg_mod10_rm32[11] = BX_SEG_REG_DS;
sreg_mod10_rm32[12] = BX_SEG_REG_DS;
sreg_mod10_rm32[13] = BX_SEG_REG_DS;
sreg_mod10_rm32[14] = BX_SEG_REG_DS;
sreg_mod10_rm32[15] = BX_SEG_REG_DS;
#endif
// 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;
2002-09-14 04:51:46 +04:00
#if BX_SUPPORT_X86_64
sreg_mod0_base32[8] = BX_SEG_REG_DS;
sreg_mod0_base32[9] = BX_SEG_REG_DS;
sreg_mod0_base32[10] = BX_SEG_REG_DS;
sreg_mod0_base32[11] = BX_SEG_REG_DS;
sreg_mod0_base32[12] = BX_SEG_REG_DS;
sreg_mod0_base32[13] = BX_SEG_REG_DS;
sreg_mod0_base32[14] = BX_SEG_REG_DS;
sreg_mod0_base32[15] = BX_SEG_REG_DS;
#endif
// 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;
2002-09-14 04:51:46 +04:00
#if BX_SUPPORT_X86_64
sreg_mod1or2_base32[8] = BX_SEG_REG_DS;
sreg_mod1or2_base32[9] = BX_SEG_REG_DS;
sreg_mod1or2_base32[10] = BX_SEG_REG_DS;
sreg_mod1or2_base32[11] = BX_SEG_REG_DS;
sreg_mod1or2_base32[12] = BX_SEG_REG_DS;
sreg_mod1or2_base32[13] = BX_SEG_REG_DS;
sreg_mod1or2_base32[14] = BX_SEG_REG_DS;
sreg_mod1or2_base32[15] = BX_SEG_REG_DS;
#endif
mem = addrspace;
sprintf (name, "CPU %p", this);
#if BX_WITH_WX
- Apply patch.replace-Boolean rev 1.3. Every "Boolean" is now changed to a "bx_bool" which is always defined as Bit32u on all platforms. In Carbon specific code, Boolean is still used because the Carbon header files define it to unsigned char. - this fixes bug [ 623152 ] MacOSX: Triple Exception Booting win95. The bug was that some code in Bochs depends on Boolean to be a 32 bit value. (This should be fixed, but I don't know all the places where it needs to be fixed yet.) Because Carbon defined Boolean as an unsigned char, Bochs just followed along and used the unsigned char definition to avoid compile problems. This exposed the dependency on 32 bit Boolean on MacOS X only and led to major simulation problems, that could only be reproduced and debugged on that platform. - On the mailing list we debated whether to make all Booleans into "bool" or our own type. I chose bx_bool for several reasons. 1. Unlike C++'s bool, we can guarantee that bx_bool is the same size on all platforms, which makes it much less likely to have more platform-specific simulation differences in the future. (I spent hours on a borrowed MacOSX machine chasing bug 618388 before discovering that different sized Booleans were the problem, and I don't want to repeat that.) 2. We still have at least one dependency on 32 bit Booleans which must be fixed some time, but I don't want to risk introducing new bugs into the simulation just before the 2.0 release. Modified Files: bochs.h config.h.in gdbstub.cc logio.cc main.cc pc_system.cc pc_system.h plugin.cc plugin.h bios/rombios.c cpu/apic.cc cpu/arith16.cc cpu/arith32.cc cpu/arith64.cc cpu/arith8.cc cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer16.cc cpu/ctrl_xfer32.cc cpu/ctrl_xfer64.cc cpu/data_xfer16.cc cpu/data_xfer32.cc cpu/data_xfer64.cc cpu/debugstuff.cc cpu/exception.cc cpu/fetchdecode.cc cpu/flag_ctrl_pro.cc cpu/init.cc cpu/io_pro.cc cpu/lazy_flags.cc cpu/lazy_flags.h cpu/mult16.cc cpu/mult32.cc cpu/mult64.cc cpu/mult8.cc cpu/paging.cc cpu/proc_ctrl.cc cpu/segment_ctrl_pro.cc cpu/stack_pro.cc cpu/tasking.cc debug/dbg_main.cc debug/debug.h debug/sim2.cc disasm/dis_decode.cc disasm/disasm.h doc/docbook/Makefile docs-html/cosimulation.html fpu/wmFPUemu_glue.cc gui/amigaos.cc gui/beos.cc gui/carbon.cc gui/gui.cc gui/gui.h gui/keymap.cc gui/keymap.h gui/macintosh.cc gui/nogui.cc gui/rfb.cc gui/sdl.cc gui/siminterface.cc gui/siminterface.h gui/term.cc gui/win32.cc gui/wx.cc gui/wxmain.cc gui/wxmain.h gui/x.cc instrument/example0/instrument.cc instrument/example0/instrument.h instrument/example1/instrument.cc instrument/example1/instrument.h instrument/stubs/instrument.cc instrument/stubs/instrument.h iodev/cdrom.cc iodev/cdrom.h iodev/cdrom_osx.cc iodev/cmos.cc iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_arpback.cc iodev/eth_packetmaker.cc iodev/eth_packetmaker.h iodev/floppy.cc iodev/floppy.h iodev/guest2host.h iodev/harddrv.cc iodev/harddrv.h iodev/ioapic.cc iodev/ioapic.h iodev/iodebug.cc iodev/iodev.h iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.h iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pic.h iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h iodev/sb16.cc iodev/sb16.h iodev/serial.cc iodev/serial.h iodev/vga.cc iodev/vga.h memory/memory.h memory/misc_mem.cc
2002-10-25 15:44:41 +04:00
static bx_bool first_time = 1;
if (first_time) {
first_time = 0;
// Register some of the CPUs variables as shadow parameters so that
// they can be visible in the config interface.
// (Experimental, obviously not a complete list)
bx_param_num_c *param;
const char *fmt16 = "%04X";
const char *fmt32 = "%08X";
Bit32u oldbase = bx_param_num_c::set_default_base (16);
const char *oldfmt = bx_param_num_c::set_default_format (fmt32);
bx_list_c *list = new bx_list_c (BXP_CPU_PARAMETERS, "CPU State", "", 60);
#define DEFPARAM_NORMAL(name,field) \
list->add (new bx_shadow_num_c (BXP_CPU_##name, #name, "", &(field)))
DEFPARAM_NORMAL (EAX, EAX);
DEFPARAM_NORMAL (EBX, EBX);
DEFPARAM_NORMAL (ECX, ECX);
DEFPARAM_NORMAL (EDX, EDX);
DEFPARAM_NORMAL (ESP, ESP);
DEFPARAM_NORMAL (EBP, EBP);
DEFPARAM_NORMAL (ESI, ESI);
DEFPARAM_NORMAL (EDI, EDI);
DEFPARAM_NORMAL (EIP, EIP);
DEFPARAM_NORMAL (DR0, dr0);
DEFPARAM_NORMAL (DR1, dr1);
DEFPARAM_NORMAL (DR2, dr2);
DEFPARAM_NORMAL (DR3, dr3);
DEFPARAM_NORMAL (DR6, dr6);
DEFPARAM_NORMAL (DR7, dr7);
2002-09-14 04:51:46 +04:00
#if BX_SUPPORT_X86_64==0
- add infrastructure for sending commands from the wxWindows interface to the Bochs debugger. The Bochs debugger calls SIM->debug_get_next_command() which does not return until a debugger command is found. The siminterface sends an synchronous event to the wxWindows thread with a blank to be filled in with a debugger command. wxWindows fills in the blank and sends the synchronous event back, and the Bochs debugger interprets it as if it was typed on the command line. For the long term I haven't decided whether to stick with sending text strings vs. some other method. - so far the wxWindows debugger consists of one big dialog box that shows all the standard registers, and a working Continue, Stop, and Step button. - modify ParamDialog so that it is more useful as a base class, by moving some things to protected members&fields, separating out functionality that is most likely to be replaced into virtual functions, and making it generally more flexible. The new CpuRegistersDialog is based on ParamDialog. - in wxdialog.cc, continue the convention of using wxID_HELP, wxID_OK, wxID_CANCEL, etc. for the id's of buttons, instead of wxHELP, wxOK, etc. which are intended to be ORred together in a bit field. - cpu/init.cc: put ifdefs around DEFPARAMs for flags in configurations where they don't exist. Add an eflags shadow parameter that represents all of the bits of eflags at once. There are also boolean shadow params for each bit. - modified files: cpu/init.cc debug/dbg_main.cc debug/debug.h gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h
2002-09-13 23:39:38 +04:00
#if BX_CPU_LEVEL >= 2
DEFPARAM_NORMAL (CR0, cr0.val32);
DEFPARAM_NORMAL (CR1, cr1);
DEFPARAM_NORMAL (CR2, cr2);
DEFPARAM_NORMAL (CR3, cr3);
- add infrastructure for sending commands from the wxWindows interface to the Bochs debugger. The Bochs debugger calls SIM->debug_get_next_command() which does not return until a debugger command is found. The siminterface sends an synchronous event to the wxWindows thread with a blank to be filled in with a debugger command. wxWindows fills in the blank and sends the synchronous event back, and the Bochs debugger interprets it as if it was typed on the command line. For the long term I haven't decided whether to stick with sending text strings vs. some other method. - so far the wxWindows debugger consists of one big dialog box that shows all the standard registers, and a working Continue, Stop, and Step button. - modify ParamDialog so that it is more useful as a base class, by moving some things to protected members&fields, separating out functionality that is most likely to be replaced into virtual functions, and making it generally more flexible. The new CpuRegistersDialog is based on ParamDialog. - in wxdialog.cc, continue the convention of using wxID_HELP, wxID_OK, wxID_CANCEL, etc. for the id's of buttons, instead of wxHELP, wxOK, etc. which are intended to be ORred together in a bit field. - cpu/init.cc: put ifdefs around DEFPARAMs for flags in configurations where they don't exist. Add an eflags shadow parameter that represents all of the bits of eflags at once. There are also boolean shadow params for each bit. - modified files: cpu/init.cc debug/dbg_main.cc debug/debug.h gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h
2002-09-13 23:39:38 +04:00
#endif
#if BX_CPU_LEVEL >= 4
DEFPARAM_NORMAL (CR4, cr4.registerValue);
- add infrastructure for sending commands from the wxWindows interface to the Bochs debugger. The Bochs debugger calls SIM->debug_get_next_command() which does not return until a debugger command is found. The siminterface sends an synchronous event to the wxWindows thread with a blank to be filled in with a debugger command. wxWindows fills in the blank and sends the synchronous event back, and the Bochs debugger interprets it as if it was typed on the command line. For the long term I haven't decided whether to stick with sending text strings vs. some other method. - so far the wxWindows debugger consists of one big dialog box that shows all the standard registers, and a working Continue, Stop, and Step button. - modify ParamDialog so that it is more useful as a base class, by moving some things to protected members&fields, separating out functionality that is most likely to be replaced into virtual functions, and making it generally more flexible. The new CpuRegistersDialog is based on ParamDialog. - in wxdialog.cc, continue the convention of using wxID_HELP, wxID_OK, wxID_CANCEL, etc. for the id's of buttons, instead of wxHELP, wxOK, etc. which are intended to be ORred together in a bit field. - cpu/init.cc: put ifdefs around DEFPARAMs for flags in configurations where they don't exist. Add an eflags shadow parameter that represents all of the bits of eflags at once. There are also boolean shadow params for each bit. - modified files: cpu/init.cc debug/dbg_main.cc debug/debug.h gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h
2002-09-13 23:39:38 +04:00
#endif
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#endif // #if BX_SUPPORT_X86_64==0
// segment registers require a handler function because they have
// special get/set requirements.
#define DEFPARAM_SEG_REG(x) \
list->add (param = new bx_param_num_c (BXP_CPU_SEG_##x, \
#x, "", 0, 0xffff, 0)); \
param->set_handler (cpu_param_handler); \
param->set_format (fmt16);
#define DEFPARAM_GLOBAL_SEG_REG(name,field) \
list->add (param = new bx_shadow_num_c (BXP_CPU_##name##_BASE, \
#name" base", "", \
& BX_CPU_THIS_PTR field.base)); \
list->add (param = new bx_shadow_num_c (BXP_CPU_##name##_LIMIT, \
#name" limit", "", \
& BX_CPU_THIS_PTR field.limit));
DEFPARAM_SEG_REG(CS);
DEFPARAM_SEG_REG(DS);
DEFPARAM_SEG_REG(SS);
DEFPARAM_SEG_REG(ES);
DEFPARAM_SEG_REG(FS);
DEFPARAM_SEG_REG(GS);
DEFPARAM_SEG_REG(LDTR);
DEFPARAM_SEG_REG(TR);
DEFPARAM_GLOBAL_SEG_REG(GDTR, gdtr);
DEFPARAM_GLOBAL_SEG_REG(IDTR, idtr);
#undef DEFPARAM_SEGREG
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#if BX_SUPPORT_X86_64==0
list->add (param = new bx_shadow_num_c (BXP_CPU_EFLAGS, "EFLAGS", "",
&BX_CPU_THIS_PTR eflags.val32));
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#endif
- add infrastructure for sending commands from the wxWindows interface to the Bochs debugger. The Bochs debugger calls SIM->debug_get_next_command() which does not return until a debugger command is found. The siminterface sends an synchronous event to the wxWindows thread with a blank to be filled in with a debugger command. wxWindows fills in the blank and sends the synchronous event back, and the Bochs debugger interprets it as if it was typed on the command line. For the long term I haven't decided whether to stick with sending text strings vs. some other method. - so far the wxWindows debugger consists of one big dialog box that shows all the standard registers, and a working Continue, Stop, and Step button. - modify ParamDialog so that it is more useful as a base class, by moving some things to protected members&fields, separating out functionality that is most likely to be replaced into virtual functions, and making it generally more flexible. The new CpuRegistersDialog is based on ParamDialog. - in wxdialog.cc, continue the convention of using wxID_HELP, wxID_OK, wxID_CANCEL, etc. for the id's of buttons, instead of wxHELP, wxOK, etc. which are intended to be ORred together in a bit field. - cpu/init.cc: put ifdefs around DEFPARAMs for flags in configurations where they don't exist. Add an eflags shadow parameter that represents all of the bits of eflags at once. There are also boolean shadow params for each bit. - modified files: cpu/init.cc debug/dbg_main.cc debug/debug.h gui/siminterface.cc gui/siminterface.h gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h
2002-09-13 23:39:38 +04:00
// flags implemented in lazy_flags.cc must be done with a handler
// that calls their get function, to force them to be computed.
#define DEFPARAM_EFLAG(name) \
list->add ( \
param = new bx_param_bool_c ( \
BXP_CPU_EFLAGS_##name, \
#name, "", get_##name())); \
param->set_handler (cpu_param_handler);
#define DEFPARAM_LAZY_EFLAG(name) \
list->add ( \
param = new bx_param_bool_c ( \
BXP_CPU_EFLAGS_##name, \
#name, "", get_##name())); \
param->set_handler (cpu_param_handler);
#if BX_CPU_LEVEL >= 4
DEFPARAM_EFLAG(ID);
//DEFPARAM_EFLAG(VIP);
//DEFPARAM_EFLAG(VIF);
DEFPARAM_EFLAG(AC);
#endif
#if BX_CPU_LEVEL >= 3
DEFPARAM_EFLAG(VM);
DEFPARAM_EFLAG(RF);
#endif
#if BX_CPU_LEVEL >= 2
DEFPARAM_EFLAG(NT);
// IOPL is a special case because it is 2 bits wide.
list->add (
param = new bx_shadow_num_c (
BXP_CPU_EFLAGS_IOPL,
"IOPL", "",
&eflags.val32,
12, 13));
param->set_range (0, 3);
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#if BX_SUPPORT_X86_64==0
param->set_format ("%d");
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#endif
#endif
DEFPARAM_LAZY_EFLAG(OF);
DEFPARAM_EFLAG(DF);
DEFPARAM_EFLAG(IF);
DEFPARAM_EFLAG(TF);
DEFPARAM_LAZY_EFLAG(SF);
DEFPARAM_LAZY_EFLAG(ZF);
DEFPARAM_LAZY_EFLAG(AF);
DEFPARAM_LAZY_EFLAG(PF);
DEFPARAM_LAZY_EFLAG(CF);
// restore defaults
bx_param_num_c::set_default_base (oldbase);
bx_param_num_c::set_default_format (oldfmt);
}
#endif
#if BX_SupportICache
iCache.alloc(mem->len);
iCache.fetchModeMask = 0; // KPL: fixme!!!
#endif
}
BX_CPU_C::~BX_CPU_C(void)
{
BX_INSTR_SHUTDOWN(BX_CPU_ID);
BX_DEBUG(( "Exit."));
}
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;
// status and control flags register set
BX_CPU_THIS_PTR setEFlags(0x2); // Bit1 is always set
BX_CPU_THIS_PTR clear_IF ();
#if BX_CPU_LEVEL >= 3
BX_CPU_THIS_PTR clear_RF ();
BX_CPU_THIS_PTR clear_VM ();
#endif
#if BX_CPU_LEVEL >= 4
BX_CPU_THIS_PTR clear_AC ();
#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 =
EIP = 0x00000000;
#else /* from 286 up */
BX_CPU_THIS_PTR prev_eip =
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#if BX_SUPPORT_X86_64
RIP = 0x0000FFF0;
#else
EIP = 0x0000FFF0;
#endif
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#endif
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#if BX_SUPPORT_SSE >= 1
for(unsigned index=0; index < BX_XMM_REGISTERS; index++)
{
BX_CPU_THIS_PTR xmm[index].xmm64u(0) = 0;
BX_CPU_THIS_PTR xmm[index].xmm64u(1) = 0;
}
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BX_CPU_THIS_PTR mxcsr.mxcsr = MXCSR_RESET;
#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;
#elif BX_CPU_LEVEL == 6
BX_CPU_THIS_PTR dr6 = 0xFFFF0FF0;
BX_CPU_THIS_PTR dr7 = 0x00000400;
#else
# error "DR6,7: CPU > 6"
#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
BX_CPU_THIS_PTR protectedMode = 0;
BX_CPU_THIS_PTR v8086Mode = 0;
BX_CPU_THIS_PTR realMode = 1;
#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.setRegister(0);
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#endif
#if BX_SUPPORT_X86_64
BX_CPU_THIS_PTR cpu_mode = BX_MODE_IA32;
#endif
/* initialise MSR registers to defaults */
#if BX_CPU_LEVEL >= 5
/* APIC Address, APIC enabled and BSP is default, we'll fill in the rest later */
BX_CPU_THIS_PTR msr.apicbase = (APIC_BASE_ADDR << 12) + 0x900;
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#if BX_SUPPORT_X86_64
BX_CPU_THIS_PTR msr.lme = BX_CPU_THIS_PTR msr.lma = 0;
#endif
#endif
BX_CPU_THIS_PTR EXT = 0;
//BX_INTR = 0;
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#if BX_SUPPORT_PAGING
#if BX_USE_TLB
TLB_init();
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#endif // BX_USE_TLB
#endif // BX_SUPPORT_PAGING
BX_CPU_THIS_PTR eipPageBias = 0;
BX_CPU_THIS_PTR eipPageWindowSize = 0;
BX_CPU_THIS_PTR eipFetchPtr = NULL;
#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;
BX_CPU_THIS_PTR trace_reg = 0;
#endif
// Init the Floating Point Unit
#if BX_SUPPORT_FPU
fpu_init();
#endif
#if (BX_SMP_PROCESSORS > 1)
// notice if I'm the bootstrap processor. If not, do the equivalent of
// a HALT instruction.
int apic_id = local_apic.get_id ();
if (BX_BOOTSTRAP_PROCESSOR == apic_id)
{
// boot normally
BX_CPU_THIS_PTR bsp = 1;
BX_CPU_THIS_PTR msr.apicbase |= 0x0100; /* set bit 8 BSP */
BX_INFO(("CPU[%d] is the bootstrap processor", apic_id));
} else {
// it's an application processor, halt until IPI is heard.
BX_CPU_THIS_PTR bsp = 0;
BX_CPU_THIS_PTR msr.apicbase &= ~0x0100; /* clear bit 8 BSP */
BX_INFO(("CPU[%d] is an application processor. Halting until IPI.", apic_id));
debug_trap |= 0x80000000;
async_event = 1;
}
#else
BX_CPU_THIS_PTR async_event=2;
#endif
BX_CPU_THIS_PTR kill_bochs_request = 0;
BX_INSTR_RESET(BX_CPU_ID);
}
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) ) {
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BX_PANIC(("problems using BX_READ_8BIT_REGx()!"));
}
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) ) {
BX_PANIC(("problems using BX_READ_16BIT_REG()!"));
}
eax = EAX;
ecx = ECX;
edx = EDX;
ebx = EBX;
esp = ESP;
ebp = EBP;
esi = ESI;
edi = EDI;
if (sizeof(Bit8u) != 1 || sizeof(Bit8s) != 1)
BX_PANIC(("data type Bit8u or Bit8s is not of length 1 byte!"));
if (sizeof(Bit16u) != 2 || sizeof(Bit16s) != 2)
BX_PANIC(("data type Bit16u or Bit16s is not of length 2 bytes!"));
if (sizeof(Bit32u) != 4 || sizeof(Bit32s) != 4)
BX_PANIC(("data type Bit32u or Bit32s is not of length 4 bytes!"));
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if (sizeof(Bit64u) != 8 || sizeof(Bit64s) != 8)
BX_PANIC(("data type Bit64u or Bit64u is not of length 8 bytes!"));
BX_DEBUG(( "#(%u)all sanity checks passed!", BX_SIM_ID ));
}
void
- Apply patch.replace-Boolean rev 1.3. Every "Boolean" is now changed to a "bx_bool" which is always defined as Bit32u on all platforms. In Carbon specific code, Boolean is still used because the Carbon header files define it to unsigned char. - this fixes bug [ 623152 ] MacOSX: Triple Exception Booting win95. The bug was that some code in Bochs depends on Boolean to be a 32 bit value. (This should be fixed, but I don't know all the places where it needs to be fixed yet.) Because Carbon defined Boolean as an unsigned char, Bochs just followed along and used the unsigned char definition to avoid compile problems. This exposed the dependency on 32 bit Boolean on MacOS X only and led to major simulation problems, that could only be reproduced and debugged on that platform. - On the mailing list we debated whether to make all Booleans into "bool" or our own type. I chose bx_bool for several reasons. 1. Unlike C++'s bool, we can guarantee that bx_bool is the same size on all platforms, which makes it much less likely to have more platform-specific simulation differences in the future. (I spent hours on a borrowed MacOSX machine chasing bug 618388 before discovering that different sized Booleans were the problem, and I don't want to repeat that.) 2. We still have at least one dependency on 32 bit Booleans which must be fixed some time, but I don't want to risk introducing new bugs into the simulation just before the 2.0 release. Modified Files: bochs.h config.h.in gdbstub.cc logio.cc main.cc pc_system.cc pc_system.h plugin.cc plugin.h bios/rombios.c cpu/apic.cc cpu/arith16.cc cpu/arith32.cc cpu/arith64.cc cpu/arith8.cc cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer16.cc cpu/ctrl_xfer32.cc cpu/ctrl_xfer64.cc cpu/data_xfer16.cc cpu/data_xfer32.cc cpu/data_xfer64.cc cpu/debugstuff.cc cpu/exception.cc cpu/fetchdecode.cc cpu/flag_ctrl_pro.cc cpu/init.cc cpu/io_pro.cc cpu/lazy_flags.cc cpu/lazy_flags.h cpu/mult16.cc cpu/mult32.cc cpu/mult64.cc cpu/mult8.cc cpu/paging.cc cpu/proc_ctrl.cc cpu/segment_ctrl_pro.cc cpu/stack_pro.cc cpu/tasking.cc debug/dbg_main.cc debug/debug.h debug/sim2.cc disasm/dis_decode.cc disasm/disasm.h doc/docbook/Makefile docs-html/cosimulation.html fpu/wmFPUemu_glue.cc gui/amigaos.cc gui/beos.cc gui/carbon.cc gui/gui.cc gui/gui.h gui/keymap.cc gui/keymap.h gui/macintosh.cc gui/nogui.cc gui/rfb.cc gui/sdl.cc gui/siminterface.cc gui/siminterface.h gui/term.cc gui/win32.cc gui/wx.cc gui/wxmain.cc gui/wxmain.h gui/x.cc instrument/example0/instrument.cc instrument/example0/instrument.h instrument/example1/instrument.cc instrument/example1/instrument.h instrument/stubs/instrument.cc instrument/stubs/instrument.h iodev/cdrom.cc iodev/cdrom.h iodev/cdrom_osx.cc iodev/cmos.cc iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_arpback.cc iodev/eth_packetmaker.cc iodev/eth_packetmaker.h iodev/floppy.cc iodev/floppy.h iodev/guest2host.h iodev/harddrv.cc iodev/harddrv.h iodev/ioapic.cc iodev/ioapic.h iodev/iodebug.cc iodev/iodev.h iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.h iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pic.h iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h iodev/sb16.cc iodev/sb16.h iodev/serial.cc iodev/serial.h iodev/vga.cc iodev/vga.h memory/memory.h memory/misc_mem.cc
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BX_CPU_C::set_INTR(bx_bool value)
{
BX_CPU_THIS_PTR INTR = value;
BX_CPU_THIS_PTR async_event = 1;
}