Commit Graph

268 Commits

Author SHA1 Message Date
Stanislav Shwartsman
62511c3101 allow dbg_fetch_mem function in broader scope 2021-01-02 14:19:28 +00:00
Stanislav Shwartsman
bea432dacb fixed compilation with no debugger configured in 2021-01-02 14:04:35 +00:00
Stanislav Shwartsman
41ea50ba22 complete transition to new disasm, remove old disasm from source code 2021-01-02 13:43:10 +00:00
Volker Ruppert
4d6a88ec94 Fixed dbg_fetch_mem() and dbg_set_mem() similar to other memory access methods.
- Always apply the A20 setting to the requested address.
- Fixed the conditions for SMRAM access.
- Added support for memory handlers and removed direct VGA memory access.
- Added support for reading from BIOS flash memory.
2020-12-08 19:52:39 +00:00
Volker Ruppert
6d55094650 Fixed ROM checksum code: added missing check for the upper 64k of Bochs BIOS. 2020-11-30 18:08:29 +00:00
Volker Ruppert
87d660e652 Fixed some MSVC warnings. 2020-11-30 08:50:22 +00:00
Volker Ruppert
11318c98f3 Improved flash memory support for the BIOS EEPROM (now emulating Intel(tm)
flash chips.
- 28F001BX-T for 128k BIOS image (two 4k parameter blocks below boot block)
- 28F002BC-T for 256k BIOS image (two 8k parameter blocks below boot block)
- Only tested updating ESCD by external BIOS images. Bochs BIOS currently
  writes configuration to shadow RAM.
2020-11-29 08:47:13 +00:00
Volker Ruppert
691461df4d Some work on the flash memory emulation for the BIOS ROM EEPROM. According to
the flashrom project a JEDEC chip needs to be emulated here. Tests with BIOS
images designed for the i440FX chipset are okay, but for the i440BX chipset
some more commands need to implemented.
2020-11-07 16:31:46 +00:00
Volker Ruppert
b91f907a1c Some BIOS ROM related changes in the memory code.
- Store BIOS ROM start address and use it instead of hardcoded BIOS_MASK.
- Added stub for BIOS ROM access switches.
- Verify checksum of legacy Bochs BIOS, too.
2020-11-01 16:13:38 +00:00
Volker Ruppert
2293308afe BIOS ROM write support requires a suitable flash memory emulation for the
selected PCI chipset. When testing Bochs with a real BIOS image the programming
sequence for the ESCD unexpectedly overwrites some BIOS locations and it fails
to reboot. For the i440BX AGP chipset development it is required to test with
a real BIOS image, but currently reporting "unknown flash type". For now I have
added two stubs with unmodified behaviour.
2020-10-30 17:34:12 +00:00
Stanislav Shwartsman
03b02b7991 Apply patch from developers mailing by Lander Brandt (with some modifications) - speedup of WinXP boot by 7% 2020-10-03 08:29:58 +00:00
Stanislav Shwartsman
eec720c62b convert bochs.h macros to inline functions with strong types 2019-10-16 20:46:00 +00:00
Stanislav Shwartsman
64ae3fe1ba convert bochs.h macros to inline functions with strong types 2019-10-16 20:19:34 +00:00
Volker Ruppert
50dfe4b8de Some fixes for MSVC.
- Fixed compilation failure of MSVC plugin 'speaker'.
- Fixed some MSVC warnings.
2018-05-21 16:11:46 +00:00
Volker Ruppert
e526d6c9d7 Moved PIR table modification for the i440BX chipset from the memory code to the
BIOS init code and some related fixes and cleanups.
2018-05-01 07:04:43 +00:00
Volker Ruppert
eeefe369d7 Some PCI IRQ roouting changes for i440BX chipset support.
- Bochs BIOS: Improved calculating PCI slot number from device number to handle
  the i440BX case correctly.
- Memory code: Detect and modify the PCI IRQ roouting table of the Bochs BIOS
  for the i440BX chipset (TODO: this could be done by the BIOS itself after
  copying to shadow RAM).
2018-04-29 16:20:58 +00:00
Volker Ruppert
8952c144bd Some work on the i440BX chipset and related changes.
- Fixed PCI BAR initialization (now using memset()).
  - Fixed reset failure (set all PAM memory types to ROM).
  - Added stub for the AGP aperture (register BAR #0, handle APSIZE and read
    GART entry in read/write handlers).
  - Added some more PCI register defaults and write masks.
  - Fixed a warning in the ES1370 code.
  - Voodoo Banshee: set up PCI subsystem ID depending on bus and model.
  - Volatile BIOS write support must also be present in ISA BIOS memory.
2018-03-04 04:53:16 +00:00
Stanislav Shwartsman
5439647254 small change to extract ia_opcodes.h from instr.h to dedicated file. this would remove compilation dep of all files on ia_opcodes.h (now called ia_opcdes.def). regenerating dep ober all files in Makefiles.in 2017-10-19 21:27:25 +00:00
Volker Ruppert
6dba96d10a Some changes related to the PCI ROM handling.
- Added support for setting memory write handler to NULL (ROM case).
- Added new PCI device method after_restore_pci_state(). It currently handles
  the PCI ROM case only (could be extended).
2017-10-08 15:54:21 +00:00
Volker Ruppert
ca3758423b Fixed some MSVC warnings. 2017-08-06 18:35:37 +00:00
Volker Ruppert
19b98b1145 Simplified code for the "optromimage" and "optramimage" options stuff (saving
configuration, loading images). Cleaned up "romimage" option parsing and
prepared parameter "options" for the behaviour of the Bochs BIOS.
TODO: implement BIOS option "fastboot" to skip the boot menu prompt.
2017-02-14 20:11:58 +00:00
Volker Ruppert
cd68194269 Added Android host platform support to Bochs based on SF patch #534.
- added Android case to the configure script.
- renamed file memory.h to memory-bochs.h to fix conflict with NDK.
- fixed Android issues in some files.
2016-08-12 17:06:14 +00:00
Stanislav Shwartsman
7a34f00f99 extracted fetchdecode into separated folder under cpu and also out of BX_CPU_C class into stand-alone module. Next step: wrap it up nicely and define clear interace to CPU model to minimize dependencies. Ideally I need fetchdecode to not include CPU at all 2016-06-12 21:23:48 +00:00
Stanislav Shwartsman
4dc537259f smaller block size for host allocate memory management (1MB->128KB( 2016-05-15 19:42:42 +00:00
Stanislav Shwartsman
793ceb0d8c fix massive code dupliction between disasm, debugger and cpu by introducing new cpu decoder.h header 2016-04-29 21:01:28 +00:00
Stanislav Shwartsman
be4b73c6d2 extracted tlb specific code to tlb.h; extracted xsave cpuid leaf function to base cpuid class 2015-09-21 13:16:17 +00:00
Stanislav Shwartsman
055da948a0 fixed problems found by cppcheck tool (patch by Maxim Derbasov) - second round 2015-01-07 16:17:40 +00:00
Volker Ruppert
2ec57b8a6b Fixed some more C++11 warnings. 2014-12-18 17:52:40 +00:00
Volker Ruppert
902ed3f90b Fixed unregistering memory handlers (affected memory bits must be cleared). 2014-12-14 09:19:09 +00:00
Volker Ruppert
c8ef526143 Fixed some warnings. 2014-12-01 17:06:00 +00:00
Volker Ruppert
a07bb921e8 Fixed some format warnings 2014-04-20 12:50:05 +00:00
Stanislav Shwartsman
e6af0565bd convert BX_INFO message to BX_DEBUG 2013-12-24 14:59:00 +00:00
Volker Ruppert
58019a1649 Renamed "ltdl.h" to "ltdl-bochs.h" to avoid conflicts with the include file
that is a part of the libtool package. Updated Makefile dependencies.
TODO: check if we can get rid of the ltdl*.* files (this would be possible if
the ltdl library is always available if libtool is present).
2013-12-17 19:57:40 +00:00
Volker Ruppert
9c3d374e6a continued work for "wx second run" support
- memory: initialize ISA and PCI ROM variables in init_memory()
- sb16: remove items from runtime menu in destructor
- gui debugger: show dialog contents (TODO: fix remaining display issues)
- TODO: fix deadlock in bx_wx_gui::handle_events()
2013-02-18 20:52:19 +00:00
Volker Ruppert
2ea45c0e4d implemented volatile BIOS memory write support (controlled by PIIX/PIIX3 XBCS register) 2012-12-02 19:59:23 +00:00
Volker Ruppert
cc56245407 started implementing the i430FX chipset
- renamed config parameter "i440fx_support" to "enabled"
- new config parameter "chipset" added (current choices "i430FX" and "i440FX")
- don't load ACPI support if the i430FX chipset is selected
- select register values for the core PCI devices depending on the chipset
- USB UHCI must be connected to a PCI slot if the i430FX chipset is used
- rombios changes to make the i430FX chipset work
- TODO #1: implement limitation to 1 cpu and 128 MB RAM for the i430FX chipset
- TODO #2: verify register behaviour of both chipsets
2012-11-11 08:11:17 +00:00
Stanislav Shwartsman
3855c9c2fe fixed warning 2012-09-24 20:11:50 +00:00
Volker Ruppert
b560c72b52 - added check for overlapping memory regions using a Bit16u bitmap (each bit
represents a 64k block in the 1M page)
- fixed some format warnings
2012-09-23 19:09:20 +00:00
Volker Ruppert
c2560a8d44 - fpu directory is now a subdirectory in 'cpu' 2012-09-12 21:08:40 +00:00
Volker Ruppert
53438e92c6 - fixes based on Debian patches by Guillem Jover
- set SHELL variable with configure script
  - add '--tag CXX' argument to libtool calls
2012-07-14 07:01:43 +00:00
Stanislav Shwartsman
515d8b5c25 add new instrumentation callbacks for physical memory access from CPU 2012-06-18 11:41:26 +00:00
Volker Ruppert
de94b08a1a - class bx_list_c now contains a chained list of parameters. Removed the now
obsolete maxsize parameter from all lists.
2012-02-12 18:43:20 +00:00
Volker Ruppert
ed669adfd1 - rewrite of the PCI memory management code for the expansion ROM and BIOS area
- store memory type array in the memory object to avoid calling the pci plugin
    frequently. The pci code calls a memory method to change the memory type in
    case the PAM registers are modified.
  - removed now obsolete code and minor cleanups
2012-01-19 18:32:11 +00:00
Stanislav Shwartsman
d3fe5c607e compilation fix 2011-12-02 20:11:57 +00:00
Stanislav Shwartsman
81f55b5be7 improved the fix for busmaster DMA transfers from device to memory done by Volker 2011-12-02 19:41:54 +00:00
Volker Ruppert
1f18f5831f - final fix for busmaster DMA transfers from device to memory: new memory method
writePhysicalBlock() replaces the buggy code in iodev.h.
  Calling pageWriteStampTable.decWriteStamp(addr) is required here to make memcpy() work.
2011-11-30 17:11:43 +00:00
Stanislav Shwartsman
01f27e3a0c this should fix bug report 3422638 large ramfile support broken on anything but Linux 2011-10-15 19:29:42 +00:00
Stanislav Shwartsman
30b94b112b regen Makefile.in dep 2011-08-18 05:44:54 +00:00
Stanislav Shwartsman
a03e0266fb added yonah CPUID to cpudb. remove bxversion.h from dep files 2011-08-16 19:58:56 +00:00
Stanislav Shwartsman
955f889925 change bx_info to bx_dbg 2011-07-29 08:16:28 +00:00