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- test macro system
- test conditional jumps
- test mul, div, ext8s, ext16s, bswap
- generate a global TB prologue and epilogue to save/restore registers
to/from the CPU state and to reserve a stack frame to optimize
helper calls. Modify cpu-exec.c so that it does not use global
register variables (except maybe for 'env').
- fully convert the x86 target. The minimal amount of work includes:
- add cc_src, cc_dst and cc_op as globals
- disable its eflags optimization (the liveness analysis should
suffice)
- move complicated operations to helpers (in particular FPU, SSE, MMX).
- optimize the x86 target:
- move some or all the registers as globals
- use the TB prologue and epilogue to have QEMU target registers in
pre assigned host registers.
Ideas:
- Move the slow part of the qemu_ld/st ops after the end of the TB.
- Experiment: change instruction storage to simplify macro handling
and to handle dynamic allocation and see if the translation speed is
OK.
- change exception syntax to get closer to QOP system (exception
parameters given with a specific instruction).
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