14 #include "cl_LF_impl.h"
17 const cl_LF cl_DF_to_LF (const cl_DF& x, uintC len)
22 #if (cl_word_size==64)
24 DF_decode(x, { return encode_LF0(len); }, sign=,exp=(sintL),mant=);
28 DF_decode2(x, { return encode_LF0(len); }, sign=,exp=(sintL),manthi=,mantlo=);
30 // Long-Float allozieren,
31 // Mantisse mit intDsize*len-DF_mant_len-1 Nullbits auffüllen:
32 var Lfloat y = allocate_lfloat(len,exp+LF_exp_mid,sign);
33 var uintD* ptr = arrayMSDptr(TheLfloat(y)->data,len);
34 // erste k := ceiling(DF_mant_len+1,intDsize) Digits mit mant füllen:
35 var const int shiftcount = (ceiling(DF_mant_len+1,intDsize)*intDsize-(DF_mant_len+1));
36 #if (cl_word_size==64)
37 mant = mant<<shiftcount;
38 set_max64_Dptr(DF_mant_len+1,ptr,mant);
40 manthi = (manthi<<shiftcount) | (mantlo>>(32-shiftcount));
41 mantlo = mantlo<<shiftcount;
42 set_max32_Dptr(DF_mant_len+1-32,ptr,manthi);
43 set_32_Dptr(ptr mspop ceiling(DF_mant_len+1-32,intDsize),mantlo);
45 clear_loop_msp(ptr mspop ceiling(DF_mant_len+1,intDsize),len-ceiling(DF_mant_len+1,intDsize));