if init() is called a second time. This allows me to restart a
simulation (wxwindows interface only) without restarting the whole
application.
- modified: iodev/*.cc
so that windows types can be used in fields, for example in cdrom.h:
#ifdef WIN32
HANDLE cdrom_interface::hFile;
#endif
- since every file includes bochs.h, I removed includes of <windows.h>
everywhere else
- modified: bochs.h cpu/extdb.cc gui/win32.cc gui/wx.cc iodev/cdrom.cc
iodev/eth_win32.cc iodev/floppy.cc
These seem to be working better, are a more simple design,
easier to understand, and AFAIK don't have race conditions
in them like the old ones do.
Re-coded the apic timer, to return cycle accurate values
which vary with each iteration of a read from a guest OS.
The previous implementation had very poor resolution. It
also didn't check the mask bit to see if an apic timer
interrupt should occur on countdown to 0. The apic timer
now calls its own bochs timer, rather than tag on the
one in iodev/devices.cc.
I needed to use one new function which is an inline in
pc_sytem.h. That would have to be added to the old pc_system.h if
we have to back-out to it.
Linux/x86-64 now boots until it hits two undefined opcodes:
FXRSTOR (0f ae). This restores FPU, MMX, XMM and MXCSR registers
from a 512-byte region of memory. We don't implement this yet.
MOVNTDQ (66 0f e7). This is a move involving an XMM register.
The 0x66 prefix is used so it's a double quadword, rather than
MOVNTQ (0f e7) which operates on a single quadword.
The Linux kernel panic is on the MOVNTQD opcodes. Perhaps that's
because that opcode is used in exception handling of the 1st?
Looks like we need to implement some new instructions.
version uses the cdrom drives in the system's order. Drive letters are not
used by ASPI.
- wrong BX_INFO message for ASPI disabled. The version number is never checked.
requesting source can be registered as well. Otherwise, there
is no way to know which source modules are requesting
suspect frequencies which are too high.
instead of winmm being a part of GUI_LINK_OPTS_WIN32 only, it is
placed in @DEVICE_LINE_OPTS@ so that it will be used for sdl, rfb, wx,
etc.
- solve compile problems when building bximage, niclist, and any other
console based program. The compile flags returned by wx-config and
sdl-config did strange things to these console programs, for example
redefining main to SDL_main. Because I wanted to use the
configure-generated CFLAGS to compile the programs, but I wanted to
avoid including GUI specific compile options, I split up the configure's
@CFLAGS@ variable into @CFLAGS@ and @GUI_CFLAGS@, and split
@CXXFLAGS@ into @CXXFLAGS@ and @GUI_CXXFLAGS@. All programs in the
Bochs binary will use both, but the console programs will just use
@CFLAGS@ or @CXXFLAGS@.
- gui/Makefile.in, I no longer use the gui specific CFLAGS variables,
SDL_CFLAGS and WX_CXXFLAGS. These values are included in CFLAGS and
CXXFLAGS now.
- modified: configure.in, configure, all Makefile.in's
- a few weeks ago I changed the gui code so that it always made a copy
of the clipboard data using new Bit8u[] and passed it into the keyboard
code. But I didn't get the keyboard code quite right, and Christophe
noticed the incorrect malloc that I had forgotten to remove. I changed
it to work as I intended:
1. gui code allocates paste buffer (new), copies clipboard data in
2. gui code passes the buffer to the keyboard code, and forgets about it
3. keyboard code uses the buffer, then frees it when finished (delete)
- modified: iodev/keyboard.h iodev/keyboard.cc
From his patch file text:
> This patch adds Promise DC2300 VLB IDE Support.
> You may find msdos and win95 drivers on the net. Look for
> P2300W95.ZIP and DC2300VLBIDEver260b.ZIP.
>
> The good news is that now win95 natively sees my cdrom,
> and that the disks are not in msdos compatibility mode any more.
>
> The bad news is that it works only for the first ata interface.
>
> I tested that patch on msdos and win95 only.
>
> Some info on VLB IDE can be found at http://ryston.cz/petr/vlb/
I got Win95 running with 32-bit paging/filesystem using the
recommended driver and these patches. Since the patches did
such a good job bracketing code modifications with a #define,
they might as well become part of the current CVS code.
The function gets the real time in useconds and puts it in
a Bit64u. This function is defined when:
BX_HAVE_REALTIME_USEC is 1.
Right now, BX_HAVE_REALTIME_USEC is defined to be BX_HAVE_GETTIMEOFDAY
and bx_get_realtime64_usec is defined in terms of gettimeofday().
However, it could be defined in terms of any other method of obtaining
the current time accurate to the usecond. That is why I moved the
function to osdep and added the new define.
- Features :
. number of active channels defined at boot-time config
. new options in bochsrc
. up to 8 devices support (disks or cdroms)
. up to 4 cdrom devices can be changed at runtime config
. wxwindows config interface
- PacketSetReadTimeout: instead of calling with a very short timeout,
now we call it with -1 which means no timeout.
- Psyon found that Peter Tattam's changes, while necessary for win95, broke
WinNT/2000. So now on Windows NT/2000, we still call
WaitForSingleObject(lpAdapter->ReadEvent,0) but we ignore the return value.
- hardcode BX_HAVE_GETTIMEOFDAY=0 if cross compiling for VC++
(this part hasn't been tested)
- modified files: configure configure.in config.h.in iodev/pit_wrap.cc
- pci2isa prefix changed to "P2I"
- device name changed to "PIIX3 PCI-to-ISA bridge"
- added more default values to the reset() function
- added stubs for i/o mapped registers
- array pci_conf[] is now a part of the structure s
a precursor to making it a runtime option. I'm not
sure how to do this, but it should be trivial. All it
would take is adding the option and changing the
macro for BX_USE_REALTIME_PIT to point to that option.
and I could never explain it. The problem was that in keyboard.cc it
included "math.h" with quotes instead of <math.h> with less than/greater
than, so gcc -MM didn't realize it was a system header.
set_text_charbyte()
- vga: store the address of the active charmap in the new variable
charmap_address
- vga: text mode hack removed. The write modes, operations and masks must be
used in text mode too.
- sdl: clear_screen() is not necessary when the charmap has changed
- win32: update only the changed font bitmaps before drawing the text
performance of the ne2K driver in win9x."
- receive timer set to 10000 instructions instead of 1000000.
- placed if (WaitForSingleObject(lpAdapter->ReadEvent,0) == WAIT_OBJECT_0) {}
around the read code.
to request bulk IO operations to IO devices which are bulk IO aware.
Currently, I modified only harddrv.cc to be aware. I added some
fields to the bx_devices_c class for the IO instructions to
place requests and receive responses from the IO device emulation.
Devices except the hard drive, don't monitor these fields so they
respond as normal. The hard drive now monitors these fields for
bulk requests, and if enabled, it memcpy()'s data straight from
the disk buffer to memory. This eliminates numerous inp/outp calling
sequences per disk sector.
I used the fields in bx_devices_c so that I would not have to
disrupt most IO device modules. Enhancements can be made to
other devices if they use high-bandwidth IO via in/out instructions.
vga_charmap
- the SDL gui uses the charmap data for the vga text display
* TODO: implement this feature for other guis
- removed unused variables in sdl.cc and gui.cc
- fixed a warning in vga.cc
