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62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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#ifndef LONG_DOUBLE_DENORM_BIAS
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# define LONG_DOUBLE_DENORM_BIAS (IEEE854_LONG_DOUBLE_BIAS - 1)
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#endif
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#define PRINT_FPHEX_LONG_DOUBLE \
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do { \
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/* The "strange" 80 bit format on ix86 and m68k has an explicit \
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leading digit in the 64 bit mantissa. */ \
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unsigned long long int num; \
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\
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assert (sizeof (long double) == 12); \
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\
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num = (((unsigned long long int) fpnum.ldbl.ieee.mantissa0) << 32 \
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| fpnum.ldbl.ieee.mantissa1); \
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\
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zero_mantissa = num == 0; \
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\
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if (sizeof (unsigned long int) > 6) \
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numstr = _itoa_word (num, numbuf + sizeof numbuf, 16, \
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info->spec == 'A'); \
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else \
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numstr = _itoa (num, numbuf + sizeof numbuf, 16, info->spec == 'A'); \
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\
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/* Fill with zeroes. */ \
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while (numstr > numbuf + (sizeof numbuf - 64 / 4)) \
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*--numstr = '0'; \
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\
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/* We use a full nibble for the leading digit. */ \
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leading = *numstr++; \
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\
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/* We have 3 bits from the mantissa in the leading nibble. \
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Therefore we are here using `IEEE854_LONG_DOUBLE_BIAS + 3'. */ \
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exponent = fpnum.ldbl.ieee.exponent; \
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\
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if (exponent == 0) \
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{ \
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if (zero_mantissa) \
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expnegative = 0; \
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else \
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{ \
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/* This is a denormalized number. */ \
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expnegative = 1; \
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/* This is a hook for the m68k long double format, where the \
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exponent bias is the same for normalized and denormalized \
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numbers. */ \
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exponent = LONG_DOUBLE_DENORM_BIAS + 3; \
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} \
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} \
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else if (exponent >= IEEE854_LONG_DOUBLE_BIAS + 3) \
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{ \
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expnegative = 0; \
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exponent -= IEEE854_LONG_DOUBLE_BIAS + 3; \
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} \
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else \
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{ \
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expnegative = 1; \
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exponent = -(exponent - (IEEE854_LONG_DOUBLE_BIAS + 3)); \
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} \
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} while (0)
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#include <sysdeps/generic/printf_fphex.c>
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