Commit Graph

7 Commits

Author SHA1 Message Date
Bryce Denney
0a7cb3a43c - apply patch.ifdef-disabled-options. Comments from that patch are below:
For a whole lot of configure options, I put #if...#endif around code that
  is specific to the option, even in files which are normally only compiled
  when the option is on.  This allows me to create a MS Visual C++ 6.0
  workspace that supports many of these options.  The workspace will basically
  compile every file all the time, but the code for disabled options will
  be commented out by the #if...#endif.

  This may one day lead to simplification of the Makefiles and configure
  scripts, but for the moment I'm leaving Makefiles and configure scripts
  alone.

  Affected options:
    BX_SUPPORT_APIC (cpu/apic.cc)
    BX_SUPPORT_X86_64 (cpu/*64.cc)
    BX_DEBUGGER (debug/*)
    BX_DISASM (disasm/*)
    BX_WITH_nameofgui (gui/*)
    BX_SUPPORT_CDROM (iodev/cdrom.cc)
    BX_NE2K_SUPPORT (iodev/eth*.cc, iodev/ne2k.cc)
    BX_SUPPORT_APIC (iodev/ioapic.cc)
    BX_IODEBUG_SUPPORT (iodev/iodebug.cc)
    BX_PCI_SUPPORT (iodev/pci*.cc)
    BX_SUPPORT_SB16 (iodev/sb*.cc)

Modified Files:
  cpu/apic.cc cpu/arith64.cc cpu/ctrl_xfer64.cc
  cpu/data_xfer64.cc cpu/fetchdecode64.cc cpu/logical64.cc
  cpu/mult64.cc cpu/resolve64.cc cpu/shift64.cc cpu/stack64.cc
  debug/Makefile.in debug/crc.cc debug/dbg_main.cc debug/lexer.l
  debug/linux.cc debug/parser.c debug/parser.y
  disasm/dis_decode.cc disasm/dis_groups.cc gui/amigaos.cc
  gui/beos.cc gui/carbon.cc gui/macintosh.cc gui/rfb.cc
  gui/sdl.cc gui/term.cc gui/win32.cc gui/wx.cc gui/wxdialog.cc
  gui/wxmain.cc gui/x.cc iodev/cdrom.cc iodev/eth.cc
  iodev/eth_arpback.cc iodev/eth_fbsd.cc iodev/eth_linux.cc
  iodev/eth_null.cc iodev/eth_packetmaker.cc iodev/eth_tap.cc
  iodev/eth_tuntap.cc iodev/eth_win32.cc iodev/ioapic.cc
  iodev/iodebug.cc iodev/ne2k.cc iodev/pci.cc iodev/pci2isa.cc
  iodev/sb16.cc iodev/soundlnx.cc iodev/soundwin.cc
2002-11-19 05:47:45 +00:00
Stanislav Shwartsman
b84f0bd0f2 This was not a cleanup. Those macros were intentionally
there to offer a way to substitute more efficient code
to do the RMW cases.  At the moment, they just map to
the normal functions.

Sorry, restored the previous version ...
2002-10-25 18:26:29 +00:00
Stanislav Shwartsman
a0c1fd60e6 Just little cleanup of macro duplicating an existing code 2002-10-25 17:23:34 +00:00
Kevin Lawton
402d02974d Moved the EFLAGS.RF check and clearing of inhibit_mask code
in cpu.cc out of the main loop, and into the asynchronous
events handling.  I went through all the code paths, and
there doesn't seem to be any reason for that code to be
in the hot loop.

Added another accessor for getting instruction data, called
modC0().  A lot of instructions test whether the mod field
of mod-nnn-rm is 0xc0 or not, ie., it's a register operation
and not memory.  So I flag this in fetchdecode{,64}.cc.
This added on the order of 1% performance improvement for
a Win95 boot.

Macroized a few leftover calls to Write_RMV_virtual_xyz()
that didn't get modified in the x86-64 merge.  Really, they
just call the real function for now, but I want to have them
available to do direct writes with the guest2host TLB pointers.
2002-09-20 03:52:59 +00:00
Kevin Lawton
6723ca9bf4 Moved more separate fields in the bxInstruction_c into bitfields
with accessors.  Had to touch a number of files to update the
access using the new accessors.

Moved rm_addr to the CPU structure, to slim down bxInstruction_c
and to prevent future instruction caching from getting sprayed
with writes to individual rm_addr fields.  There only needs to
be one.  Though need to deal with instructions which have
static non-modrm addresses, but which are using rm_addr since
that will change.

bxInstruction_c is down to about 40 bytes now.  Trying to
get down to 24 bytes.
2002-09-18 05:36:48 +00:00
Kevin Lawton
07b0df2a8a Updated accessing of modrm/sib addressing information to
use accessors.  This lets me work on compressing the
size of fetch-decode structure (now called bxInstruction_c).

I've reduced it down to about 76 bytes.  We should be able
to do much better soon.  I needed the abstraction of the
accessors, so I have a lot of freedom to re-arrange things
without making massive future changes.

Lost a few percent of performance in these mods, but my
main focus was to get the abstraction.
2002-09-17 22:50:53 +00:00
Kevin Lawton
f05d453b6c Moved 64-bit only files from cpu64 to cpu and modified the Makefiles
accordingly.  These files cause no conflicts at all, since they
are not used in 32-bit compiles.
2002-09-13 15:53:22 +00:00