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73 lines
2.1 KiB
73 lines
2.1 KiB
#ifndef _HTC_FLOAT_H
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#define _HTC_FLOAT_H
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/* Characteristics of floating types */
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#define DBL_RADIX 2 /* radix of exponent for a double */
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#define DBL_ROUNDS 1 /* doubles round when converted to int */
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#define FLT_RADIX 2 /* radix of float exponent */
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#define FLT_ROUNDS 1 /* float also rounds to int */
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#if z80
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#define FLT_MANT_DIG 24 /* 24 bits in mantissa */
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#define DBL_MANT_DIG 24 /* ditto for double */
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#define DBL_MANT_DIG 24 /* ditto long double */
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#define FLT_EPSILON -1.192093 /* smallest x, x+1.0 != 1.0 */
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#define DBL_EPSILON -1.192093 /* smallest x, x+1.0 != 1.0 */
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#define FLT_DIG 6 /* decimal significant digs */
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#define DBL_DIG 6
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#define FLT_MIN_EXP -62 /* min binary exponent */
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#define DBL_MIN_EXP -62
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#define FLT_MIN 1.084202e-19 /* smallest floating number */
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#define DBL_MIN 1.084202e-19
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#define FLT_MIN_10_EXP -18
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#define DBL_MIN_10_EXP -18
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#define FLT_MAX_EXP 64 /* max binary exponent */
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#define DBL_MAX_EXP 64
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#define FLT_MAX 1.84467e19 /* max floating number */
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#define DBL_MAX 1.84467e19
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#define FLT_MAX_10_EXP 19 /* max decimal exponent */
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#define DBL_MAX_10_EXP 19
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#endif z80
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#if i8086 || m68k
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/* The 8086 and 68000 use IEEE 32 and 64 bit floats */
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#define FLT_RADIX 2
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#define FLT_MANT_DIG 24
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#define FLT_EPSILON 1.19209290e-07
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#define FLT_DIG 6
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#define FLT_MIN_EXP -125
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#define FLT_MIN 1.17549435e-38
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#define FLT_MIN_10_EXP -37
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#define FLT_MAX_EXP 128
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#define FLT_MAX 3.40282347e+38
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#define FLT_MAX_10_EXP 38
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#define DBL_MANT_DIG 53
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#define DBL_EPSILON 2.2204460492503131e-16
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#define DBL_DIG 15
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#define DBL_MIN_EXP -1021
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#define DBL_MIN 2.225073858507201e-308
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#define DBL_MIN_10_EXP -307
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#define DBL_MAX_EXP 1024
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#define DBL_MAX 1.797693134862316e+308
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#define DBL_MAX_10_EXP 308
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#endif i8086 || m68k
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/* long double equates to double */
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#define LDBL_MANT_DIG DBL_MANT_DIG
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#define LDBL_EPSILON DBL_EPSILON
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#define LDBL_DIG DBL_DIG
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#define LDBL_MIN_EXP DBL_MIN_EXP
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#define LDBL_MIN DBL_MIN
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#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
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#define LDBL_MAX_EXP DBL_MAX_EXP
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#define LDBL_MAX DBL_MAX
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#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
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#endif
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