ieee754dp ieee754dp_neg(ieee754dp x) { COMPXDP; EXPLODEXDP; CLEARCX; FLUSHXDP; DPSIGN(x) ^= 1; if (xc == IEEE754_CLASS_SNAN) { ieee754dp y = ieee754dp_indef(); SETCX(IEEE754_INVALID_OPERATION); DPSIGN(y) = DPSIGN(x); return ieee754dp_nanxcpt(y, "neg"); } return x; }
union ieee754dp ieee754dp_abs(union ieee754dp x) { unsigned int oldrm; union ieee754dp y; oldrm = ieee754_csr.rm; ieee754_csr.rm = FPU_CSR_RD; if (DPSIGN(x)) y = ieee754dp_sub(ieee754dp_zero(0), x); else y = ieee754dp_add(ieee754dp_zero(0), x); ieee754_csr.rm = oldrm; return y; }
ieee754dp ieee754dp_neg(ieee754dp x) { COMPXDP; EXPLODEXDP; CLEARCX; FLUSHXDP; /* * Invert the sign ALWAYS to prevent an endless recursion on * pow() in libc. */ /* quick fix up */ DPSIGN(x) ^= 1; if (xc == IEEE754_CLASS_SNAN) { ieee754dp y = ieee754dp_indef(); SETCX(IEEE754_INVALID_OPERATION); DPSIGN(y) = DPSIGN(x); return ieee754dp_nanxcpt(y, "neg"); } return x; }
ieee754dp ieee754dp_abs(ieee754dp x) { COMPXDP; EXPLODEXDP; CLEARCX; FLUSHXDP; /* Clear sign ALWAYS, irrespective of NaN */ DPSIGN(x) = 0; if (xc == IEEE754_CLASS_SNAN) { return ieee754dp_nanxcpt(ieee754dp_indef(), "abs"); } return x; }
ieee754dp ieee754dp_abs(ieee754dp x) { COMPXDP; EXPLODEXDP; CLEARCX; FLUSHXDP; DPSIGN(x) = 0; if (xc == IEEE754_CLASS_SNAN) { SETCX(IEEE754_INVALID_OPERATION); return ieee754dp_nanxcpt(ieee754dp_indef(), "abs"); } return x; }
ieee754dp ieee754dp_copysign(ieee754dp x, ieee754dp y) { CLEARCX; DPSIGN(x) = DPSIGN(y); return x; }