f_st0 = -f_st0;
f_st0 = f_st1;
f_st1 = f_st0; // fld st
- f_st0 = f_st1 * log2(f_st0);
+ f_st0 = f_st1 * log2(f_st0); // fyl2x
f_st1 = f_st0; // fld st
sf.d[0] = (s32)f_st0; f_st0 = f_st1; // var_20 fist
*((double *)(u32)&sf.q[1]) = f_st0; // var_18 fst