| /programs/other/graph/math2.cpp |
|---|
| 0,0 → 1,83 |
| #include <math.h> |
| #include "kosSyst.h" |
| extern "C" int _fltused = 0; |
| double acos(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| fld1 |
| fadd st, st(1) |
| fld1 |
| fsub st, st(2) |
| fmulp st(1), st |
| fsqrt |
| fxch st(1) |
| fpatan |
| } |
| } |
| double asin(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| fld1 |
| fadd st, st(1) |
| fld1 |
| fsub st, st(2) |
| fmulp st(1), st |
| fsqrt |
| fpatan |
| ret |
| } |
| } |
| #if _MSC_VER <= 1200 |
| extern "C" double _ftol(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| push 1F3Fh |
| fstcw word ptr [esp+2] |
| fldcw word ptr [esp] |
| frndint |
| fldcw word ptr [esp+2] |
| add esp, 4 |
| } |
| } |
| #endif |
| double ceil(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| push 1B3Fh |
| fstcw word ptr [esp+2] |
| fldcw word ptr [esp] |
| frndint |
| fldcw word ptr [esp+2] |
| add esp, 4 |
| } |
| } |
| double floor(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| push 173Fh |
| fstcw word ptr [esp+2] |
| fldcw word ptr [esp] |
| frndint |
| fldcw word ptr [esp+2] |
| add esp, 4 |
| } |
| } |
| double round(double x) |
| { |
| __asm { |
| fld qword ptr [esp+4] |
| push 133Fh |
| fstcw word ptr [esp+2] |
| fldcw word ptr [esp] |
| frndint |
| fldcw word ptr [esp+2] |
| add esp, 4 |
| } |
| } |