296 lines
7.7 KiB
NASM
296 lines
7.7 KiB
NASM
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; Copyright (c) Microsoft Corporation. All rights reserved.
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;
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.code
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include hal.inc
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IRC_CHOP equ 0c00h ; chop
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;;;__declspec(naked) uint16 __fastcall g_ClearFp()
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?g_ClearFp@@YAGXZ proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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;;// Save the old SW
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fnstsw [esp-4];
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fnclex
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mov eax, [esp-4];
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and eax, 0ffffh;
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pop rbp;
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ret; // Returns result in EAX
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?g_ClearFp@@YAGXZ endp
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;;;__declspec(naked) uint16 __fastcall g_ControlFp(uint16 newctrl, uint16 mask)
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?g_ControlFp@@YAGGG@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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;;// Save the old CW
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fstcw [esp-4];
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mov eax, [esp-4];
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and eax, 0ffffh;
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;;// Load the new CW
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and ecx,edx;
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not edx;
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and edx,eax;
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or edx,ecx;
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mov [esp-4], edx;
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fldcw [esp-4];
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pop rbp
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ret;
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?g_ControlFp@@YAGGG@Z endp
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;;;__declspec(naked) void __fastcall g_RestoreFp(uint16 newctrl)
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?g_RestoreFp@@YAXG@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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;;// Load the new CW
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and ecx, 0ffffh;
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mov [esp-4], ecx;
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fldcw [esp-4];
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pop rbp
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ret;
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?g_RestoreFp@@YAXG@Z endp
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ifdef GARBAGE
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;;;static float64 __fastcall _frnd(float64 v)
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?_frnd@@YANN@Z PROC frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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frndint;
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pop rbp;
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ret
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?_frnd@@YANN@Z endp
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;;;static int32 __fastcall _ftoi(float64 v)
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?_ftoi@@YAHN@Z PROC frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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ifdef NYI
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sub rsp, 24;
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;;int32 intval; +0
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;;int32 oldcw; +8
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;;int32 newcw; +16
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fstcw DWORD PTR [rsp+8] ; // get control word
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mov eax, r9d; // round mode saved
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or eax,; // set chop rounding mode
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mov r10d, eax; // back to memory
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fldcw r10d; // reset rounding
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fld rcx;
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fistp r8d; // store chopped integer
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fwait;
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fldcw r9d; // restore rounding
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add rsp, 24
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endif
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or rax,rax
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mov eax,r9d
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pop rbp;
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ret
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?_ftoi@@YAHN@Z endp
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;;;float64 Class_System_Math::g_Log(float64 v)
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?g_Log@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fldln2;
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fxch ST(1);
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fyl2x; // Returns result in ST(0)
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pop rbp;
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ret
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?g_Log@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Sin(float64 v)
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?g_Sin@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fsin; // Returns result in ST(0)
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pop rbp;
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ret
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?g_Sin@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Cos(float64 v)
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?g_Cos@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fcos; // Returns result in ST(0)
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pop rbp;
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ret
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?g_Cos@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Tan(float64 v)
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?g_Tan@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fptan;
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fstp ST(0); // Returns result in ST(0)
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pop rbp;
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ret
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?g_Tan@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Atan(float64 v)
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?g_Atan@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fld1;
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fpatan;
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pop rbp;
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ret
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?g_Atan@Class_System_Math@@SANN@Z endp
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endif
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;;;float64 Class_System_Math::g_Atan2(float64 v, float64 w)
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?g_Atan2@Class_System_Math@@SANNN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fld QWORD PTR [rsp +16];
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fpatan;
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pop rbp;
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ret
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?g_Atan2@Class_System_Math@@SANNN@Z endp
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;;;float64 Class_System_Math::g_Abs(float64 v)
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?g_Abs@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fabs;
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pop rbp
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ret
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?g_Abs@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Sqrt(float64 v)
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?g_Sqrt@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fsqrt;
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pop rbp;
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ret
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?g_Sqrt@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Log10(float64 v)
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?g_Log10@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld QWORD PTR [rsp +8];
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fldlg2;
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fxch ST(1);
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fyl2x; // Returns result in ST(0)
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pop rbp;
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ret
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?g_Log10@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Exp(float64 v)
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?g_Exp@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fldl2e;
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fmul QWORD PTR [rsp +8];
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fld ST(0);
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frndint;
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fxch ST(1);
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fsub ST(0), ST(1);
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f2xm1;
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fld1;
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faddp ST(1), ST(0);
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fscale;
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fstp ST(1); // Returns result in ST(0)
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pop rbp;
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ret
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?g_Exp@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Acos(float64 v)
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?g_Acos@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld real8 PTR [rsp+8] ;
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fld1; // load 1.0
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fadd st, st(1); // 1+x
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fld1; // load 1.0
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fsub st, st(2); // 1-x
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fmul; // (1+x)(1-x)
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fsqrt; // sqrt((1+x)(1-x))
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fxch;
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fpatan; // fpatan(x,sqrt((1+x)(1-x)))
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pop rbp;
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ret
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?g_Acos@Class_System_Math@@SANN@Z endp
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;;;float64 Class_System_Math::g_Asin(float64 v)
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?g_Asin@Class_System_Math@@SANN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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fld real8 PTR [rsp+8] ;
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fld1; // load 1.0
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fadd st, st(1); // 1+x
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fld1; // load 1.0
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fsub st, st(2); // 1-x
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fmul; // (1+x)(1-x)
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fsqrt; // sqrt((1+x)(1-x))
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fpatan; // fpatan(x,sqrt((1+x)(1-x)))
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pop rbp;
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ret
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?g_Asin@Class_System_Math@@SANN@Z endp
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;;;static float64 _fastpow(float64 v, float64 w)
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?g_Pow@Class_System_Math@@SANNN@Z proc frame
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PrologPush rbp
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SetFramePointer rbp
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.endprolog
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;;fld w; // neither v or w can be a boundary cases.
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;;fld v;
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fld real8 PTR [rsp+16] ;
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fld real8 PTR [rsp+8] ;
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fyl2x; // compute y*log2(x)
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fld st(0); // duplicate stack top
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frndint; // N = round(y)
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fsubr st(1), st;
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fxch;
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fchs; // g = y - N where abs(g) < 1
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f2xm1; // 2**g - 1
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fld1;
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fadd; // 2**g
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fscale; // (2**g) * (2**N) - gives 2**y
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fstp st(1); // pop extra stuff from fp stack
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pop rbp;
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ret
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?g_Pow@Class_System_Math@@SANNN@Z endp
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end
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