TODO

   1 short term:
   2 ----------
   3 - debug option in 'configure' script + disable -fomit-frame-pointer
   4 - VGA font change fix
   5 - PIC spurious interrupt patch
   6 - VNC keyboard patch
   7 - merge Solaris patch
   8 - merge ARM patches + self modifying code patch (Paul Brook)
   9 - warning for OS/2: must not use 128 MB memory
  10 - config file (at least for windows/Mac OS X)
  11 - commit message if execution of code in IO memory
  12 - update doc: PCI infos.
  13 - VNC patch + Synaptic patch.
  14 - basic VGA optimizations
  15 - test sysenter/sysexit and fxsr for L4 pistachio 686
  16 - physical memory cache (reduce qemu-fast address space size to about 32 MB)
  17 - better code fetch (different exception handling + CS.limit support)
  18 - do not resize vga if invalid size.
  19 - avoid looping if only exceptions
  20 - cycle counter for all archs
  21 - TLB code protection support for PPC
  22 - see openMosix Doc
  23 - disable SMC handling for ARM/SPARC/PPC (not finished)
  24 - see undefined flags for BTx insn
  25 - user/kernel PUSHL/POPL in helper.c
  26 - keyboard output buffer filling timing emulation
  27 - return UD exception if LOCK prefix incorrectly used
  28 - test ldt limit < 7 ?
  29 - tests for each target CPU
  30 - fix CCOP optimisation
  31 - fix all remaining thread lock issues (must put TBs in a specific invalid
  32   state, find a solution for tb_flush()).
  33 - fix arm fpu rounding (at least for float->integer conversions)
  34 - SMP support
  35
  36 ppc specific:
  37 ------------
  38 - TLB invalidate not needed if msr_pr changes
  39 - endianness bugs in do_load_fpscr and do_store_fpscr
  40 - SPR_ENCODE() not useful
  41 - enable shift optimizations ?
  42
  43 lower priority:
  44 --------------
  45 - more friendly BIOS (logo)
  46 - int15 ah=86: use better timing
  47 - HDD geometry in CMOS (not used except for very old DOS programs)
  48 - suppress shift_mem ops
  49 - fix some 16 bit sp push/pop overflow (pusha/popa, lcall lret)
  50 - sysenter/sysexit emulation
  51 - optimize FPU operations (evaluate x87 stack pointer statically)
  52 - add IPC syscalls
  53 - use -msoft-float on ARM
  54 - use kernel traps for unaligned accesses on ARM ?
  55 - handle rare page fault cases (in particular if page fault in helpers or
  56   in syscall emulation code).
  57 - fix thread stack freeing (use kernel 2.5.x CLONE_CHILD_CLEARTID)
  58 - more syscalls (in particular all 64 bit ones, IPCs, fix 64 bit
  59   issues, fix 16 bit uid issues)
  60 - use page_unprotect_range in every suitable syscall to handle all
  61   cases of self modifying code.
  62 - use gcc as a backend to generate better code (easy to do by using
  63   op-i386.c operations as local inline functions).
  64 - add SSE2/MMX operations