3.13 Floating Point Support
Keywords: sdccman

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3.13 Floating Point Support

SDCC supports (single precision 4 bytes) floating point numbers; the format is somewhat similar to IEEE, but it is not IEEE; in particular, denormalized floating -point numbers are not supported. The floating point support routines are derived from gcc's floatlib.c and consist of the following routines:

Function | Description
_fsadd.c | add floating point numbers
_fssub.c | subtract floating point numbers
_fsdiv.c | divide floating point numbers
_fsmul.c | multiply floating point numbers
_fs2uchar.c | convert floating point to unsigned char
_fs2schar.c | convert floating point to signed char
_fs2uint.c | convert floating point to unsigned int
_fs2sint.c | convert floating point to signed int
_fs2ulong.c | convert floating point to unsigned long
_fs2slong.c | convert floating point to signed long
_uchar2fs.c | convert unsigned char to floating point
_schar2fs.c | convert signed char to floating point
_uint2fs.c | convert unsigned int to floating point
_sint2fs.c | convert signed int to floating point
_ulong2fs.c | convert unsigned long to floating point
_slong2fs.c | convert signed long to floating point
_ulonglong2fs.c | convert unsigned long long to floating point
_slonglong2fs.c | convert singed long long to floating point