C++ (Cpp) FP_UNPACK_QP Examples

Example #1

void _Qp_div(long double *c, const long double *a, const long double *b)
{
  FP_DECL_EX;
  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);

  FP_INIT_ROUNDMODE;
  FP_UNPACK_QP(A, a);
  FP_UNPACK_QP(B, b);
  FP_DIV_Q(C, A, B);
  FP_PACK_QP(c, C);
  QP_HANDLE_EXCEPTIONS(__asm (
"	ldd [%1], %%f52\n"
"	ldd [%1+8], %%f54\n"
"	ldd [%2], %%f56\n"
"	ldd [%2+8], %%f58\n"
"	fdivq %%f52, %%f56, %%f60\n"
"	std %%f60, [%0]\n"
"	std %%f62, [%0+8]\n"
"	" : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER));
}

Example #2

File: qp_sqrt.c Project: riscv/riscv-glibc

void _Qp_sqrt(long double *c, const long double *a)
{
  FP_DECL_EX;
  FP_DECL_Q(A); FP_DECL_Q(C);

  FP_INIT_ROUNDMODE;
  FP_UNPACK_QP(A, a);
  FP_SQRT_Q(C, A);
  FP_PACK_QP(c, C);
  QP_HANDLE_EXCEPTIONS(__asm (
"	ldd [%1], %%f52\n"
"	ldd [%1+8], %%f54\n"
"	fsqrtq %%f52, %%f60\n"
"	std %%f60, [%0]\n"
"	std %%f62, [%0+8]\n"
"	" : : "r" (c), "r" (a) : QP_CLOBBER));
}