3 - physical memory cache (reduce qemu-fast address space size to about 32 MB)
6 - handle Self Modifying Code even if modifying current TB (BE OS 5 install)
7 - cycle counter for all archs
8 - TLB code protection support for PPC
9 - add sysenter/sysexit and fxsr for L4 pistachio 686
10 - basic VGA optimizations
11 - disable SMC handling for ARM/SPARC/PPC
12 - see undefined flags for BTx insn
13 - user/kernel PUSHL/POPL in helper.c
14 - keyboard output buffer filling timing emulation
15 - return UD exception if LOCK prefix incorrectly used
16 - cmos clock update and timers
17 - test ldt limit < 7 ?
18 - tests for each target CPU
19 - fix CCOP optimisation
20 - fix all remaining thread lock issues (must put TBs in a specific invalid
21 state, find a solution for tb_flush()).
22 - fix arm fpu rounding (at least for float->integer conversions)
27 - suppress shift_mem ops
28 - fix some 16 bit sp push/pop overflow (pusha/popa, lcall lret)
29 - sysenter/sysexit emulation
30 - optimize FPU operations (evaluate x87 stack pointer statically)
32 - use -msoft-float on ARM
33 - use kernel traps for unaligned accesses on ARM ?
34 - handle rare page fault cases (in particular if page fault in heplers or
35 in syscall emulation code).
36 - fix thread stack freeing (use kernel 2.5.x CLONE_CHILD_CLEARTID)
37 - more syscalls (in particular all 64 bit ones, IPCs, fix 64 bit
38 issues, fix 16 bit uid issues)
39 - use page_unprotect_range in every suitable syscall to handle all
40 cases of self modifying code.
41 - use gcc as a backend to generate better code (easy to do by using
42 op-i386.c operations as local inline functions).
43 - add SSE2/MMX operations