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/* * Definitions for IEEE Single Precision */ #if _FP_W_TYPE_SIZE < 32 #error "Here's a nickel kid. Go buy yourself a real computer." #endif #define _FP_FRACBITS_S 24 #define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S) #define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S) #define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S) #define _FP_EXPBITS_S 8 #define _FP_EXPBIAS_S 127 #define _FP_EXPMAX_S 255 #define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2)) #define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1)) #define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S)) /* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be chosen by the target machine. */ union _FP_UNION_S { float flt; struct { #if __BYTE_ORDER == __BIG_ENDIAN unsigned sign : 1; unsigned exp : _FP_EXPBITS_S; unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); #else unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); unsigned exp : _FP_EXPBITS_S; unsigned sign : 1; #endif } bits __attribute__((packed)); }; #define FP_DECL_S(X) _FP_DECL(1,X) #define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val) #define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X) #define FP_UNPACK_S(X,val) \ do { \ _FP_UNPACK_RAW_1(S,X,val); \ _FP_UNPACK_CANONICAL(S,1,X); \ } while (0) #define FP_PACK_S(val,X) \ do { \ _FP_PACK_CANONICAL(S,1,X); \ _FP_PACK_RAW_1(S,val,X); \ } while (0) #define FP_NEG_S(R,X) _FP_NEG(S,1,R,X) #define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y) #define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y) #define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y) #define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y) #define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X) #define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un) #define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y) #define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg) #define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt) |