The Bochs anyway even doesn't compile if cosimulation configured enabled.
But in the same time the cosimulation code only disturbs to the future development of Bochs debugger, for example adding x86-64 functionality ...
For those of you who still may want to see the cosimulation code inside I put it in patch and upload it Bochs CVS patches folder. Read comments for the patch ! ----------------------------------------------------------------------
- move crc.cc from debugger to bochs folder and make it projct-wide and not local for debugger
- added new 'info sse' command for debugger
- extend 'modebp' command to break on any mode change
- remove unimplemened 'info program' function, it is always printed fixed text
- move debugger help to parser, cleanup and simplify it
optromimage. You can load up to 4 arbitrary binary images into RAM.
I didn't do any checking on the addresses, so it's up to you to make
sure they don't collide with anything else. Should only be used for
placing files into standard RAM.
- fixed pcidev targets in iodev/Makefile.in
- updated all Makefile dependencies using a default setup (.conf.linux).
TODO: dependencies should be generated at compile time since they depend on
the config settings
- vgaromimage option now compatible with the other rom options. Old style syntax
(without 'file=...") is still supported.
- load order for the rom images fixed (system, vga, other)
- rom images sizes not multiple 512 cause a BX_INFO for now. The original check
will be enabled after updating the vgabios files
- optromimage error messages fixed
- some updates of the bochsrc sample
2. Fixed bug
[ 989478 ] I-Cache and undefined Instruktions
The L4 microkernel uses an undefined instruction to
trap for a special requests into the kernel (LOCK NOP).
The handler fixes this up and gives the user a special
code page with syscall stubs. If you're not using the
I-Cache optimization everthing works find on bochs. But
if you enable the I-Cache (--enable-icache), then the
undefined opcode exception is thrown only once for ever
virtual address it occurs. See the demodisk of the
L4KA::pistachio
(http://www.l4ka.org/projects/pistachio/download.php).
In this case the pingpong benchmark of this demo is of
interest. Everything runs fine until the program tries
to spawn a new task for its measurements. This new task
shares the code of the creating program. But the new
task stops executing at the undefined instruction
explained above and no exception is thrown.
memory handling in memory.cc removed)
- CRTC write protection implemented
- 16-bit read access to some VGA registers added
- memory handler code now conciders the status of the A20 line
bochs.h already not include iodev.h which reduces compilation dependences for almost all cpu and fpu files, now cpu files will not be recompiled if iodev includes was changed
* changed all %ll format descriptions to FMT_LL macro so that
Microsoft Visual C works correctly (it uses %I64)
* missing type conversions added
* cdrom.cc: variable types for win32 fixed
* removed some unused variables in eth_win32.cc and harddrv.cc
* added missing includes in make_cmos_image.c and niclist.c
- it works only on x86 with gcc2.95+
- uses the GCC function atribute "regparm(n)" to declare that certain
functions use the register calling convention
- performance improvement is about 6%
