Syslinux 1.48 that is used to boot freesco, did not like the latest
int15 function e801 returning AX=0 and BX=0, although my real
system does, and Ralph Brown list allow it.
Interestingly enough, the symptoms were floppy accesses with a track
number > 100. Funny.
Now int15 function e801 returns both extended and configured memory.
- add int75_handler, for msdos compatbility fpu exception
This handler calls int 2 (nmi). The NMI handler should really be aware
of this and should iret in case of FPU exception (to be implemented)
is important because many people don't have the tools to rebuild them.
They will only be removed if you type "make bios-clean", which people
are unlikely to do by accident.
- since rombios.c also supports 8 processors, go ahead and build an 8 cpu
bios as well.
Modified Files:
BIOS-bochs-2-processors BIOS-bochs-4-processors
BIOS-bochs-latest
Added Files:
BIOS-bochs-8-processors
Instead, just build all 4 bioses for 1,2,4,8 processors all the time.
Now they should all stay in sync without any special effort.
Modified Files:
rombios.c Makefile.in
- add new keyboard init code from Adam Sulmicki
- changed last cli() to #asm cli #endasm
- remove unused cli() function
- don't panic on shutdown status 0x09. just do the normal post
- implement "large" "r-echs" "lba" disk translations
- fix if ( (sc==0x01) && (sn=0x01) ) bug
- fix option field in int13 function 0x48 for harddisks
- fix option field in int13 function 0x48 for cdrom
- add "%u" in printf to handle unsigned values
- remove UDIV
- asm helper asm function ldivul idiv_ and idiv_u
"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
- change int 15 function to get a pushad_regs_t parameter
instead of the registers enumeration
- change in int 15 references to 32bits,16bits and 8 bits
registers to their pushad_regs_t counterpart
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
- parallel port detection fixed:
* write the value of AX to 0x0410, not BX
* the timeout value is a byte and now stored in CL
* the offset of the port address list is 2 bytes
. 4 ata interfaces support
. devices auto-detection
. 16bits/32bits device access
. EDD3.0 support
. ata/atapi layer rewrite
. added verious DEBUG_XXX to debug only parts of the bios, because we're running low on data space in debug mode
. moved ata data at offset 0x121 in EBDA. Previously, data was being overwritten by keyboard.sys
. added jump to [0x40:0x67] after reset if shutdown status is 0x05. Fixes bug [ 601166 ] CMOS Problem @ "0x0F Index 0x05 data"
. DMA controller init on POST entry
- added jump to [0x40:0x67] after reset if shutdown status is 0x05. Fixes bug [ 601166 ] CMOS Problem @ "0x0F Index 0x05 data"
- changed various occurences of "mov ax, #0000" by "xor ax, ax"
- fixed serious bugs in EDD function 0x48
- included Volker's rombios recent changes to PCIBIOS
- initialization of DMA controller on POST entry
- added atapi layer
- updated int13_cdrom, int13_eltorito and int13_cdemu
- added verious DEBUG_XXX to debug only parts of the bios, because we're running low on data space in debug mode
- added a fix so bcc generates good code when #asm follows if or while statements
- updated int13_cdrom, int13_eltorito and int13_cdemu
- added verious DEBUG_XXX to debug only parts of the bios, because we're running low on data space in debug mode
- added a fix so bcc generates good code when #asm follows if or while statements
- 4 ata interfaces support (1)
- devices auto-detection
- 16bits/32bits device access
- EDD3.0 support
This is nearly the same BIOS I offered for download on July 12th,
but I hope to get more feedback with the CVS.
I will update this bios with the atapi bit and fixes, and
I'll eventually merge the changes in the main BIOS.
Added Files:
BIOS-bochs-new-ata rombios-new-ata.c
* new floppy type 360k can be used in .bochsrc and the config interface
* media type and geometry can be set for the floppy type
* BIOS changes to make 360k floppy drives work
* bximage can create 360k images now
- new real mode PCI BIOS functions: find device, read/write byte/dword
- C code for PCI BIOS handles errors and prints messages only
- function setPCIaddr() no longer needed
- functions inw() and outw() no longer used by the PCI BIOS
- BIOS32 checksum calculation rewriten to prevent errors
- labels of protected mode PCI BIOS renamed
Linux (kernel 2.2.18) is able to use the new features.
Here is the list of changes:
* BIOS32 data structure added
* BIOS32 and protected mode PCI BIOS functions added. The BIOS32 function
returns a pointer to the PCI BIOS entry point when the service $PCI is
requested and the PCI hardware is present.
* Supported 32 bit functions: installation check, find pci device,
read configuration byte/word/dword, write configuration byte/word/dword
* real mode PCI BIOS installation check rewritten in assembler to use 32 bit
registers for the protected mode entry point and the 'PCI ' signature.
TODO:
* add missing functions of the PCI BIOS (if necessary)
* add missing features of the i440FX PCI bridge
* implement the other parts of the i440FX chipset (PCI-to-ISA bridge,
PCI IDE controller, USB controller)
- functions inw() and outw() are required for the ATA driver too
- real mode PCI BIOS installation check returns revision level 2.10
- unsupported real mode PCI BIOS functions return the error code 0x81
- added ASM_START / ASM_END instead of #asm / #endasm.
Now we are (tested) able to compile with both gcc2 and gcc3
compiler (Eventually!) Aren't you happy Jeroen ? ;-)
- fixed [ 549815 ]. I included back int19_relocated at the bios
space could not hold the new mov ex, ax
- int19 calls int18 if the boot has failed. I hope this is the
right behavior.
