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Raymond Toy
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Don't restore the fpu state from the context in the interrupt handler code (interrupt_handle_now) because that just makes the fpu state the same as the sigcontext that received the exception. I think this was done to reset the x87 fpu precision to 53-bit so that lisp can continue with default double-float rounding. This isn't needed anymore since lisp doesn't use x87 anymore. In SIGFPE-HANDLER, don't modify the current fp state based on the state from the sigcontext. These two items cause the arithmetic-error exception printer to trigger inexact when printing out the args. We add a few debugging prints for now so we can see what the FP state is in the handler. Remove them later.
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