GCC modified for the FreeChainXenon project
e0c1476d5d
Check for non-zero denorm in __adddf3. Need to check both the upper and lower 32-bit chunks of a 64-bit float for a non-zero value when checking to see if the value is -0. Fix __addsf3 when the sum exponent is exactly 0xff to ensure that produces infinity and not nan. Handle converting NaN/inf values between formats. Handle underflow and overflow when truncating. Write a replacement for __fixxfsi so that it does not raise extra exceptions during an extra conversion from long double to double. libgcc/ * config/m68k/lb1sf68.S (__adddf3): Properly check for non-zero denorm. (__divdf3): Restore sign bit properly. (__addsf3): Correct exponent check. * config/m68k/fpgnulib.c (EXPMASK): Define. (__extendsfdf2): Handle Inf and NaN properly. (__truncdfsf2): Handle underflow and overflow correctly. (__extenddfxf2): Handle underflow, denorms, Inf and NaN correctly. (__truncxfdf2): Handle underflow and denorms correctly. (__fixxfsi): Reimplement. |
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