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good, i see in the JIT source that more registers are use, even it not work as before. I think for first test, do not use more registers as on old JIT. only when work, then use more. this make problems find more easy maybe there are more that do not work with more registers. and when all work, then can see, when increase register number when it fail, that there is another problem with more register. i think on X64 all specific commands that are selden used, do not work on R8-R15.
this i guess are also the fpu flag (that track greater, smaller of fpu compare), and maybe some other. JIT need load and store this register too
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