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- #include "ieee754sp.h"
- union ieee754sp ieee754sp_fint(int x)
- {
- unsigned xm;
- int xe;
- int xs;
- ieee754_clearcx();
- if (x == 0)
- return ieee754sp_zero(0);
- if (x == 1 || x == -1)
- return ieee754sp_one(x < 0);
- if (x == 10 || x == -10)
- return ieee754sp_ten(x < 0);
- xs = (x < 0);
- if (xs) {
- if (x == (1 << 31))
- xm = ((unsigned) 1 << 31);
- else
- xm = -x;
- } else {
- xm = x;
- }
- xe = SP_FBITS + 3;
- if (xm >> (SP_FBITS + 1 + 3)) {
-
- while (xm >> (SP_FBITS + 1 + 3)) {
- SPXSRSX1();
- }
- } else {
-
- while ((xm >> (SP_FBITS + 3)) == 0) {
- xm <<= 1;
- xe--;
- }
- }
- return ieee754sp_format(xs, xe, xm);
- }
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